Log in

Relevant bibliographies by topics / Pathotype / Journal articles

To see the other types of publications on this topic, follow the link: Pathotype.

Journal articles on the topic 'Pathotype'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Pathotype.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Cao, Tiesen, Victor P. Manolii, Qixing Zhou, Sheau-Fang Hwang, and Stephen E. Strelkov. "Effect of canola (Brassica napus) cultivar rotation on Plasmodiophora brassicae pathotype composition." Canadian Journal of Plant Science 100, no. 2 (2020): 218–25. http://dx.doi.org/10.1139/cjps-2019-0126.

Full text

Abstract:

In Canada, clubroot (Plasmodiophora brassicae) disease is managed mainly by planting clubroot resistant (CR) canola (Brassica napus). New pathotypes of P. brassicae have emerged recently, however, which are virulent on most CR canola cultivars. To understand the impact of cultivar rotation on pathotype abundance, greenhouse experiments were conducted in which different canola cultivar rotations were grown in a soil mix containing equal amounts of pathotypes 5X and 3, which are virulent and avirulent, respectively, on CR canola. The rotation treatments included: T1, the same susceptible cultiva

APA, Harvard, Vancouver, ISO, and other styles

2

VAN LEUR, Joop, Mohammad AFTAB, and Angela FREEMAN. "Pea seed-borne mosaic virus pathotypes isolated from Australian pea (Pisum sativum) seed." Phytopathologia Mediterranea 64, no. 1 (2025): 71–76. https://doi.org/10.36253/phyto-15934.

Full text

Abstract:

Pea seed lots (144) from Australian farms and research trials were assessed for pea seed-borne mosaic virus (PSbMV) seed transmission rates. High infection rates (up to 40%) were detected, particularly in the widely grown and highly PSbMV susceptible variety ‘Kaspa’, with only 12 out of 54 seed lots found to be free of the virus. PSbMV strains were isolated from 15 infected seed lots, and were pathotyped on a set of homogeneous Pisum sativum PSbMV differentials. Of the four pathotypes identified, P1 and P4 (eight and 20 isolates, respectively) were earlier reported in Australia. Pathotype P3,

APA, Harvard, Vancouver, ISO, and other styles

3

Suparyono, Suparyono, Sudir Sudir, and Suprihanto Suprihanto. "PATHOTYPE PROFILE OF Xanthomonas oryzae pv. oryzae ISOLATES FROM THE RICE ECOSYSTEM IN JAVA." Indonesian Journal of Agricultural Science 5, no. 2 (2016): 63. http://dx.doi.org/10.21082/ijas.v5n2.2004.63-69.

Full text

Abstract:

At present, bacterial leaf blight of rice caused by Xanthomonas oryzae pv. oryzae is highly damaging to rice production in Indonesia as most of the existing commercial rice varieties are susceptible to the existing pathotypes of the bacteria. To solve such problems, varietal rotation should be based on information on the existence and dominance of local pathotypes in a particular rice ecosystem. To obtain this information, a total of 117 isolates of X. oryzae pv. oryzae, collected from West Java, Central Java, and Yogyakarta, were evaluated for their pathotype variation on five differential ri

APA, Harvard, Vancouver, ISO, and other styles

4

Suparyono, Suparyono, Sudir Sudir, and Suprihanto Suprihanto. "PATHOTYPE PROFILE OF Xanthomonas oryzae pv. oryzae ISOLATES FROM THE RICE ECOSYSTEM IN JAVA." Indonesian Journal of Agricultural Science 5, no. 2 (2016): 63. http://dx.doi.org/10.21082/ijas.v5n2.2004.p63-69.

Full text

Abstract:

At present, bacterial leaf blight of rice caused by Xanthomonas oryzae pv. oryzae is highly damaging to rice production in Indonesia as most of the existing commercial rice varieties are susceptible to the existing pathotypes of the bacteria. To solve such problems, varietal rotation should be based on information on the existence and dominance of local pathotypes in a particular rice ecosystem. To obtain this information, a total of 117 isolates of X. oryzae pv. oryzae, collected from West Java, Central Java, and Yogyakarta, were evaluated for their pathotype variation on five differential ri

APA, Harvard, Vancouver, ISO, and other styles

5

Hyun, J. W., S. H. Yi, S. J. MacKenzie, et al. "Pathotypes and Genetic Relationship of Worldwide Collections of Elsinoë spp. Causing Scab Diseases of Citrus." Phytopathology® 99, no. 6 (2009): 721–28. http://dx.doi.org/10.1094/phyto-99-6-0721.

Full text

Abstract:

Two scab diseases are recognized currently on citrus: citrus scab, caused by Elsinoë fawcettii, and sweet orange scab, caused by E. australis. Because the two species cannot be reliably distinguished by morphological or cultural characteristics, host range and molecular methods must be used to identify isolates. Four pathotypes of E. fawcettii and two of E. australis have been described to date based on host range. The host specificity and genetic relationships among 76 isolates from Argentina, Australia, Brazil, Korea, New Zealand, and the United States were investigated. Based on pathogenici

APA, Harvard, Vancouver, ISO, and other styles

6

Haque, Md Mahbubul, Md Mostafa Masud, Md Mokarram Hossain, Md Mamunur Rashid, Md Zahangir Alam, and Md Rashidul Islam. "Assessment of potentiality of known bacterial blight resistant genes against Xanthomonas oryzae pv. oryzae pathotypes exist in Bangladesh." Archives of Agriculture and Environmental Science 6, no. 3 (2021): 257–67. http://dx.doi.org/10.26832/24566632.2021.060301.

Full text

Abstract:

Bacterial blight (BB) caused by X. oryzae pv. oryzae is a destructive disease of rice and causes 30-50% losses to rice depending on the outbreak. Development BB resistant rice varieties have long been considered as one of the most effective approach to control the disease. However, the durability of host resistance is breaking down due to the change of pathotypes of X. oryzae pv. oryzae globally. Pathotypic analyses of 239 X. oryzae pv. oryzae Bangladeshi isolates on Near Isogenic Lines (NILs) containing resistance (R) gene (s) revealed the existence of eight pathotypes of X. oryzae pv. oryzae

APA, Harvard, Vancouver, ISO, and other styles

7

Antignus, Y., O. Lachman, M. Pearlsman, L. Maslenin, and A. Rosner. "A New Pathotype of Pepper mild mottle virus (PMMoV) Overcomes the L4 Resistance Genotype of Pepper Cultivars." Plant Disease 92, no. 7 (2008): 1033–37. http://dx.doi.org/10.1094/pdis-92-7-1033.

Full text

Abstract:

The biological, serological, and molecular characteristics of a newly isolated L4 resistance-breaking isolate of Pepper mild mottle virus (PMMoV) were studied. The new pathotype of PMMoV is closely related to the Israeli pathotypes P1,2 and P1,2,3 of the virus; however, the mosaic symptoms caused by this new pathotype on pepper plants with an L4 genotype were more severe than the mild mosaic symptoms caused by other common pathotypes of the virus in susceptible plants. The predicted amino acid sequence of the putative coat protein (CP) of the newly described pathotype has two amino acid mismat

APA, Harvard, Vancouver, ISO, and other styles

8

Sharma, P., I. Sharma, and S. C. Bhardwaj. "Studies on a New Pathotype 93R57 of Puccinia triticina on Wheat in India." Plant Disease 96, no. 10 (2012): 1580. http://dx.doi.org/10.1094/pdis-05-12-0434-pdn.

Full text

Abstract:

Annual surveys of pathogen populations have monitored the changing pathotype situation of Puccinia triticina that causes leaf (brown) rust of wheat, to release and deploy rust-resistant cultivars of wheat in India. In surveys during 2009 to 2010, samples of leaf rust infecting wheat were collected from the Solan district of Himachal Pradesh. The samples were established on susceptible wheat cv. Agra Local and pathotypes were identified on three differentials following binomial nomenclature (3). Based on the infection types on sets of differentials, this sample was found different to all the kn

APA, Harvard, Vancouver, ISO, and other styles

9

Körösi, Katalin, Attila Kovács, Nisha Nisha, et al. "New data on pathotype distribution and mefenoxam tolerance of Plasmopara halstedii in Hungary." Plant Protection Science 57, No. 1 (2020): 31–37. http://dx.doi.org/10.17221/73/2020-pps.

Full text

Abstract:

Sunflower downy mildew (Plasmopara halstedii) is one of the major diseases that can be controlled by using resistant cultivars and seed dressings; however, several isolates have developed tolerance to some fungicides and the resistance has also been overcome by new pathotypes. We aimed to examine the pathotype distribution in Hungary and to test the pathotypes' mefenoxam sensitivity. The isolates, which provided the basis of the research were collected from different regions of Hungary between 2014 and 2017 and, later, their pathotypes were identified. According to our results, pathotype 704 w

APA, Harvard, Vancouver, ISO, and other styles

10

Ohki, Takehiro, Takahide Sasaya, and Tetsuo Maoka. "Cylindrical Inclusion Protein of Wheat Yellow Mosaic Virus Is Involved in Differential Infection of Wheat Cultivars." Phytopathology® 109, no. 8 (2019): 1475–80. http://dx.doi.org/10.1094/phyto-11-18-0438-r.

Full text

Abstract:

Wheat yellow mosaic virus (WYMV) belongs to the genus Bymovirus in the family Potyviridae and has a bipartite genome (RNA1 and RNA2). WYMV in Japan is classified into three pathotypes (I to III) based on its pathogenicity to wheat cultivars. Among these three, pathotypes I and II are discriminated by their pathogenicity to the wheat cultivar Fukuho; pathotype I infects Fukuho but pathotype II does not. In the present study, the genomic regions that are involved in such pathogenicity were examined using infectious viral cDNA clones of pathotypes I and II. Reassortant experiments between viral R

APA, Harvard, Vancouver, ISO, and other styles

11

Zhang, Hui, Jie Feng, Shujiang Zhang, et al. "Resistance to Plasmodiophora brassicae in Brassica rapa and Brassica juncea genotypes From China." Plant Disease 99, no. 6 (2015): 776–79. http://dx.doi.org/10.1094/pdis-08-14-0863-re.

Full text

Abstract:

Clubroot disease, caused by Plasmodiophora brassicae Woronin, has become a major problem in cruciferous crops worldwide. Chinese cabbage (Brassica rapa), pak choi (B. rapa), and mustard (B. juncea) are important vegetable crops in China. Development of clubroot-resistant cultivars of these crops is urgently needed. In this study, 71 B. rapa and B. juncea genotypes from China, including cultivars and inbred lines, were evaluated for resistance to three P. brassicae pathotypes. A significant interaction was observed between the P. brassicae pathotypes and the Brassica genotypes. Pathotype 3, as

APA, Harvard, Vancouver, ISO, and other styles

12

Sharma, Kalpana, Bruce D. Gossen, David Greenshields, Gopalan Selvaraj, Stephen E. Strelkov, and Mary Ruth McDonald. "Reaction of Lines of the Rapid Cycling Brassica Collection and Arabidopsis thaliana to Four Pathotypes of Plasmodiophora brassicae." Plant Disease 97, no. 6 (2013): 720–27. http://dx.doi.org/10.1094/pdis-08-12-0752-re.

Full text

Abstract:

The clubroot reaction of five Rapid Cycling Brassica Collection (RCBC) lines (Brassica carinata, B. juncea, B. napus, B. oleracea, and B. rapa) and 84 lines of Arabidopsis thaliana to pathotypes 2, 3, 5, and 6 of Plasmodiophora brassicae (as classified on William's system) was assessed. Also, the reaction of the Arabidopsis lines to a single-spore isolate of each of pathotypes 3 and 6 was compared with that of a field isolate. Seedlings were inoculated with resting spores of P. brassicae, maintained at 25 and 20°C (day and night, respectively), and assessed for clubroot incidence and severity

APA, Harvard, Vancouver, ISO, and other styles

13

Przetakiewicz, J. "First Report of New Pathotype 39(P1) of Synchytrium endobioticum Causing Potato Wart Disease in Poland." Plant Disease 99, no. 2 (2015): 285. http://dx.doi.org/10.1094/pdis-06-14-0636-pdn.

Full text

Abstract:

Potato wart disease, caused by Synchytrium endobioticum (Schilb.) Perc., is one of the most dangerous diseases of cultivated potato. S. endobioticum is an obligate soil-borne fungus. The pathogen originated in the Andean zones of South America, from which it spread to North America and Europe at the end of the nineteenth century. The typical symptoms of cauliflower-like galls can develop on all meristematic tissues of potato except roots. The pathogen is on the European and Mediterranean Plant Protection Organization (EPPO) A2 list of quarantine pests. Since the discovery of pathotype 2(G1) in

APA, Harvard, Vancouver, ISO, and other styles

14

Sun, Suli, Lin Zhu, Feifei Sun, Canxing Duan, and Zhendong Zhu. "Pathotype diversity of Fusarium oxysporum f. sp. mungcola causing wilt on mungbean (Vigna radiata)." Crop and Pasture Science 71, no. 10 (2020): 873. http://dx.doi.org/10.1071/cp20164.

Full text

Abstract:

Fusarium wilt, caused by Fusarium oxysporum f. sp. mungcola (Fom), is an increasingly serious disease of mungbean (Vigna radiata (L.) R.Wilczek) in China. Pathogenic variability has been observed among Fom isolates; however, there are no reports describing Fom races or pathotypes. Thus, this study was conducted with the aim of developing a set of pathotype differentials to reveal Fom pathotype diversity by assessing virulence variability of Fom isolates. First, 105 mungbean cultivars were screened against a standard virulent Fom isolate (F08). Eleven of the 105 cultivars were selected as candi

APA, Harvard, Vancouver, ISO, and other styles

15

Prom, Louis K., Ezekiel Jin Sung Ahn, Ramasamy Perumal, Thomas S. Isakeit, Gary N. Odvody, and Clint W. Magill. "Genetic and Pathogenic Variability among Isolates of Sporisorium reilianum Causing Sorghum Head Smut." Journal of Fungi 10, no. 1 (2024): 62. http://dx.doi.org/10.3390/jof10010062.

Full text

Abstract:

Sporisorium reilianum, the causal agent of sorghum (Sorghum bicolor (L.) Moench) head smut, is present in most sorghum-producing regions. This seed replacement fungal disease can reduce yield by up to 80% in severely infected fields. Management of this disease can be challenging due to the appearance of different pathotypes within the pathogenic population. In this research, the genetic variability and pathogenicity of isolates collected from five Texas Counties was conducted. Due to the lack of available space, 21 out of 32 sequenced isolates were selected and evaluated for virulence patterns

APA, Harvard, Vancouver, ISO, and other styles

16

Valjavec-Gratian, M., and B. J. Steffenson. "Pathotypes of Cochliobolus sativus on Barley in North Dakota." Plant Disease 81, no. 11 (1997): 1275–78. http://dx.doi.org/10.1094/pdis.1997.81.11.1275.

Full text

Abstract:

Spot blotch, caused by Cochliobolus sativus, has become an important disease on two-rowed barley cultivars in North Dakota. Information on the variability of virulence in C. sativus is essential for the development of spot blotch-resistant barley germ plasm. To establish the number and distribution of C. sativus virulence types in North Dakota, 22 isolates from the state were evaluated for their virulence on three differential barley genotypes: ND 5883, Bowman, and ND B112. Eleven additional isolates from Minnesota, South Dakota, Nebraska, Colorado, Japan, and China were included for compariso

APA, Harvard, Vancouver, ISO, and other styles

17

Amin, Tabasia, Vishal Gupta, Akash Sharma, et al. "Distribution of Xanthomonas oryzae pv. oryzae Pathotypes in Basmati-Rice-Growing Areas of Jammu and Kashmir, India." Agronomy 13, no. 3 (2023): 713. http://dx.doi.org/10.3390/agronomy13030713.

Full text

Abstract:

Rice is an important staple food for more than half of the world’s population. Though the genetic potential of commonly cultivated varieties of rice is diminished due to various biotic and abiotic constraints, bacterial leaf blight (BLB) of rice caused by Xanthomonas oryzae pv. oryzae (Xoo) is considered one of its most destructive diseases in India. Based on morpho-cultural characteristics, bacterial pathogens isolated from the leaves of a rice plant showing typical BLB symptoms were identified as Xanthomonas oryzae pv. oryzae. Morphological studies revealed that the pathogen is Gram-negative

APA, Harvard, Vancouver, ISO, and other styles

18

Zelya, A. G., J. D. Janse, G. V. Zelya, et al. "Evaluation of Ukrainian potato varieties and breeding material for resistance to pathotypes of Synchytrium endobioticum occurring in Georgia and Ukraine." Agricultural Science and Practice 12, no. 1 (2025): 22–36. https://doi.org/10.15407/agrisp12.01.022.

Full text

Abstract:

Aim: To evaluate new Ukrainian potato breeding material for resistance to the common pathotype 1(D1) of the potato wart pathogen Synchytrium endobioticum. Furthermore, to re-evaluate during 2021–2023 seventeen Ukrainian potato varieties for the validity of previously determined resistance towards the common pathotype 1(D1), and also to assess resistance to 4 virulent pathotypes present in Ukraine and one virulent pathotype occurring in Georgia. This all to introduce new sources of resistance in Ukrainian breeding programs and to use resistant material (more) effectively in disease foci in the

APA, Harvard, Vancouver, ISO, and other styles

19

Bui Thi Ngoc, Lan, Christian Vernière, Emmanuel Jouen, et al. "Amplified fragment length polymorphism and multilocus sequence analysis-based genotypic relatedness among pathogenic variants of Xanthomonas citri pv. citri and Xanthomonas campestris pv. bilvae." International Journal of Systematic and Evolutionary Microbiology 60, no. 3 (2010): 515–25. http://dx.doi.org/10.1099/ijs.0.009514-0.

Full text

Abstract:

Three pathogenic variants (i.e. pathotypes) have been described within Xanthomonas citri pv. citri, the causal agent of Asiatic citrus canker. Pathotype A strains naturally infect a wide range of Citrus species and members of some related genera. In contrast, pathotypes A* and Aw have narrow host ranges within the genus Citrus and have been isolated from Mexican lime (Citrus aurantifolia L.) and from Mexican lime and alemow (Citrus macrophylla L.), respectively. We used amplified fragment length polymorphism (AFLP) and multilocus sequence analysis (MLSA) based on four partial housekeeping gene

APA, Harvard, Vancouver, ISO, and other styles

20

Moore, J. W., M. Ditmore, and D. O. TeBeest. "Development of Anthracnose on Grain Sorghum Hybrids Inoculated with Recently Described Pathotypes of Colletotrichum sublineolum Found in Arkansas." Plant Disease 94, no. 5 (2010): 589–95. http://dx.doi.org/10.1094/pdis-94-5-0589.

Full text

Abstract:

Sorghum anthracnose, caused by Colletotrichum sublineolum, is found in most grain-sorghum-producing areas, including Arkansas. Yield losses can be severe in susceptible sorghum hybrids, suggesting that host resistance will continue to be critical for maintaining high yields. However, genetic control is often unsuccessful because of haplotype and pathotype variability within the C. sublineolum population. The objective of this research was to assess the levels of resistance of selected grain sorghum hybrids to isolates of the recently described pathotypes of C. sublineolum found in Arkansas. Fi

APA, Harvard, Vancouver, ISO, and other styles

21

Zheng, Jing, Xuliang Wang, Yang Xiao, et al. "Specific Genes Identified in Pathotype 4 of the Clubroot Pathogen Plasmodiophora brassicae." Plant Disease 103, no. 3 (2019): 495–503. http://dx.doi.org/10.1094/pdis-05-18-0912-re.

Full text

Abstract:

Clubroot is an important disease of cruciferous crops caused by Plasmodiophora brassicae, and pathotypes are classified based on the response of differential hosts. This study was conducted to identify genetic markers able to differentiate pathotypes. Differential expression of genes between pathotype 4 (P4) and pathotype 7 (P7) was assessed according to transcriptome data of molecular marker screening. Among the pathotypes (P2, P4, P5, P7, P9, P10, and P11) tested, six genes were exclusive to P4, dividing the isolates into three types: PBRA_003263 and PBRA_003268 were present in all P4 isolat

APA, Harvard, Vancouver, ISO, and other styles

22

González-Chavira, Mario, Raúl Rodríguez Guerra, Fernando Hernández-Godínez, Jorge A. Acosta-Gallegos, Octavio Martínez de la Vega, and June Simpson. "Analysis of Pathotypes of Colletotrichum lindemuthianum Found in the Central Region of Mexico and Resistance in Elite Germ Plasm of Phaseolus vulgaris." Plant Disease 88, no. 2 (2004): 152–56. http://dx.doi.org/10.1094/pdis.2004.88.2.152.

Full text

Abstract:

The pathotypes of 17 isolates of Colletotrichum lindemuthianum from the central region of Mexico were characterized to determine the genetic relationship among isolates from this region and other regions of Mexico, and to evaluate the resistance present in the elite germ plasm collection of Phaseolus vulgaris at INIFAP. Eight pathotypes were identified, including pathotype 292, which is reported for the first time in Mexico. The lack of isolates infecting cultivar TU carrying the Co-5 resistance gene suggests that this cultivar is a useful source of resistance. Six pathotypes produced suscepti

APA, Harvard, Vancouver, ISO, and other styles

23

Karateev, A. Е., and E. Yu Polishchuk. "Cytological taxonomy of chronic pain in rheumatoid arthritis: A brief descriptive review." Rheumatology Science and Practice 63, no. 2 (2025): 138–45. https://doi.org/10.47360/1995-4484-2025-138-145.

Full text

Abstract:

Chronic pain is the main manifestation of rheumatoid arthritis (RA), determining the severity of suffering and functional impairment. Although pain in RA is primarily associated with autoimmune inflammation, it can persist against the background of low activity and even remission of the disease. This makes it necessary to search for the causes and peculiarities of the development of chronic pain in RA. It seems that the classification of pain types in RA can help in personalizing approaches to its medication control. In this regard, the evaluation of the relationship between pain and the cellu

APA, Harvard, Vancouver, ISO, and other styles

24

Heinrich, Aaron, Shinji Kawai, and Jim Myers. "Screening Brassica Cultivars for Resistance to Western Oregon Clubroot Pathotypes." HortTechnology 27, no. 4 (2017): 510–16. http://dx.doi.org/10.21273/horttech03694-17.

Full text

Abstract:

Growing resistant cultivars from the Brassicaceae family (brassicas) is an effective strategy to minimize crop loss caused by the soilborne pathogen Plasmodiophora brassicae (clubroot). However, there are many clubroot pathotypes, and genetic resistance to clubroot may be pathotype-specific. To determine which pathotypes are present in western Oregon, diseased roots were collected from five farms and identified by the European clubroot differential (ECD) set. To assess resistance to the identified pathotypes, 21 vegetable cultivars from nine crops with purported resistance to clubroot were eva

APA, Harvard, Vancouver, ISO, and other styles

25

Zwer, PK, RF Park, and RA McIntosh. "Wheat stem rust in Australia dash 1969-1985." Australian Journal of Agricultural Research 43, no. 3 (1992): 399. http://dx.doi.org/10.1071/ar9920399.

Full text

Abstract:

Pathogenic changes in Puccinia graminis f. sp. tritici (P. g. tritici) in Australia during the period 1969-1985 are reviewed. As found in a previous study covering the period 1954-1968, the frequencies of individual pathotypes were influenced by the combinations of resistance genes present in the most common wheat cultivars. From 1969 to 1978, pathotype composition and diversity varied between the four regions comprising the Australian wheat-growing area. However, from 1978 to 1985, pathotype 343-1,2,3,5,6 predominated in all regions. It is suggested that this pathotype was repeatedly derived

APA, Harvard, Vancouver, ISO, and other styles

26

Zhang, H., J. Feng, V. P. Manolii, S. E. Strelkov, and S. F. Hwang. "Characterization of a Gene Identified in Pathotype 5 of the Clubroot Pathogen Plasmodiophora brassicae." Phytopathology® 105, no. 6 (2015): 764–70. http://dx.doi.org/10.1094/phyto-10-14-0270-r.

Full text

Abstract:

Clubroot caused by Plasmodiophora brassicae is an important disease of crucifers worldwide. Isolates of the pathogen can be classified into pathotypes according to their pathogenicity on differential hosts. In this study, the presence or absence of all database-available nonhousekeeping P. brassicae genes (118 in total) were assessed by polymerase chain reaction (PCR) analysis in isolates belonging to five P. brassicae pathotypes (2, 3, 5, 6, and 8 according to Williams’ differential set). One gene, designated Cr811, was present exclusively in the isolate of pathotype 5. This was further confi

APA, Harvard, Vancouver, ISO, and other styles

27

Meles, K., M. Hulluka, and M. L. Deadman. "Pathogenic Variation in Rhynchosporium secalis on Barley in Ethiopia." Journal of Agricultural and Marine Sciences [JAMS] 5, no. 2 (2000): 75. http://dx.doi.org/10.24200/jams.vol5iss2pp75-78.

Full text

Abstract:

This paper presents the first detailed study on pathogenic variability in Rhynchosporium secalis in Ethiopia. Twenty four isolates of R. secalis, collected from Arsi, Bale and Shoa, major barley growing locations in Ethiopia, were tested on ten differential host cultivars, with known genes for resistance to the disease. The most frequent pathotypes were those inducing susceptible reactions on cvs Steudelli and Kitchen and the least complex pathotype identified was able to induce a susceptible reaction on these two cultivars only. Pathotypes 16 and 7 were the most complex and were able to induc

APA, Harvard, Vancouver, ISO, and other styles

28

Tadasanahaller, Prashantha S., Bishnu Maya Bashyal, Jagdish Yadav, Gopala Krishnan Subbaiyan, Ranjith K. Ellur, and Rashmi Aggarwal. "Identification and Characterization of Fusarium fujikuroi Pathotypes Responsible for an Emerging Bakanae Disease of Rice in India." Plants 12, no. 6 (2023): 1303. http://dx.doi.org/10.3390/plants12061303.

Full text

Abstract:

The bakanae disease of rice, or foolish seedling disease, is a well-known pathogen infecting rice hosts. Several studies have characterized Fusarium fujikuroi isolates collected from distant geographical regions and within similar geographical areas for secondary metabolite production, population structure, and diversity analysis, but none have attempted to characterize the isolates for virulence in a differential set of rice genotypes. Based on the disease response, a set of five rice genotypes with differing resistance levels were selected as a differential set for further characterization o

APA, Harvard, Vancouver, ISO, and other styles

29

Lisnawita, Lisnawita, Supramana Supramana, and Gede Suastika. "IDENTIFIKASI PATOTIPE GLOBODERA ROSTOCHIENSIS MENGGUNAKAN KLON DIFERENSIAL." Jurnal Hama dan Penyakit Tumbuhan Tropika 13, no. 2 (2013): 105–9. http://dx.doi.org/10.23960/j.hptt.213105-109.

Full text

Abstract:

Identification of Globodera rostochiensis using differential clones. Potato cyst nematode, Globodera rostochiensis, is a relatively new pathogen in Indonesia that becomes a constraint to potato production. To manage the parasite effectively, it is very important to identify the pathotype of G. rostochiensis populations. Therefore, this research was carried out to identify G. rostochiensis pathotypes. Four G. rostochiensis samples, consisting of three samples from East Java and one sample from Central Java, were identified using a set of differential clones. The result showed that G. rostochien

APA, Harvard, Vancouver, ISO, and other styles

30

Zhong, Shaobin, and Brian J. Steffenson. "Virulence and Molecular Diversity in Cochliobolus sativus." Phytopathology® 91, no. 5 (2001): 469–76. http://dx.doi.org/10.1094/phyto.2001.91.5.469.

Full text

Abstract:

Spot blotch, caused by the fungal pathogen Cochliobolus sativus, is an important disease of barley in many production areas of the world. To assess genetic diversity in this pathogen, a worldwide collection of C. sativus isolates was evaluated for virulence on barley and DNA polymorphism. Three pathotypes (0, 1, and 2) were identified among the 22 isolates tested in this study and the 36 isolates characterized previously on three barley differentials (ND5883, Bowman, and NDB112) that differ in their resistance to C. sativus. Pathotype 2, which exhibits high virulence on cv. Bowman, was only fo

APA, Harvard, Vancouver, ISO, and other styles

31

Zelya, A., G. Zelya, T. Oliynyk, et al. "Screening of potato varieties for multiple resistance to Synchytrium endobioticum in the western region of Ukraine." Agricultural Science and Practice 5, no. 3 (2018): 3–11. http://dx.doi.org/10.15407/agrisp5.03.003.

Full text

Abstract:

Aim. To evaluate potato breeding material for resistance to pathotypes of Synchytrium endobioticum (Schilbersky) Percival (1909) known to be present in Ukraine (pathotypes 1(D 1 ), 11, 13, 18 and 22); to identify resistant registered and potential varieties for the usage in the national wart disease eradication programs and to recommend these se- lected (potential and registered) potato varieties for the breeding program targeted on the development of multiple resistance against pathotypes of S. endobioticum present in Ukraine. Methods. Evaluation of the potato breeding material and registered

APA, Harvard, Vancouver, ISO, and other styles

32

Moore, J. W., M. Ditmore, and D. O. TeBeest. "Pathotypes of Colletotrichum sublineolum in Arkansas." Plant Disease 92, no. 10 (2008): 1415–20. http://dx.doi.org/10.1094/pdis-92-10-1415.

Full text

Abstract:

Sorghum anthracnose, caused by Colletotrichum sublineolum, is widely distributed in most grain sorghum-producing areas in Arkansas, and localized epidemics continue to occur across the state. The objectives of this research were to determine the number of pathotypes of C. sublineolum in Arkansas and to determine where these pathotypes are located within the state. Ninety-eight isolates were collected from research stations and production fields located in the Delta region of Arkansas from 2003 through 2005 and were tested for virulence to eight differential grain sorghum breeding lines. Of the

APA, Harvard, Vancouver, ISO, and other styles

33

Pariaud, Bénédicte, Corinne Robert, Henriette Goyeau, and Christian Lannou. "Aggressiveness Components and Adaptation to a Host Cultivar in Wheat Leaf Rust." Phytopathology® 99, no. 7 (2009): 869–78. http://dx.doi.org/10.1094/phyto-99-7-0869.

Full text

Abstract:

Experimental evidence on the capacity of pathogen populations to quantitatively adapt to their hosts and on the life traits that are involved is lacking at this time. In this article, we identified a situation in which a leaf rust pathotype (P1) was found at a high frequency on a widely grown cultivar (Soissons) and we tested the hypothesis that P1 was more aggressive on Soissons than other virulent pathotypes (P2 and P3). Several components of the pathogen life cycle were measured on adult wheat plants in two different experiments under greenhouse conditions: latent period, spore production p

APA, Harvard, Vancouver, ISO, and other styles

34

Sudir, Sudir, Dini Yuliani, and Lalu Wirajaswadi. "Komposisi dan Sebaran Patotipe Xanthomonas oryzae pv. oryzae, Penyakit pada Padi di Nusa Tenggara Barat." Jurnal Penelitian Pertanian Tanaman Pangan 34, no. 2 (2015): 113. http://dx.doi.org/10.21082/jpptp.v34n2.2015.p113-120.

Full text

Abstract:

<p>A study was carried out to identify the composition and distribution of Xanthomonas oryzae pv. oryzae (Xoo) pathotypes on rice crop in West Nusa Tenggara, during the 2012 planting season. Three activities were conducted, namely collection of rice leaf samples from the fields, isolation of Xoo from the leaf samples at the laboratory, and testing pathotypes of Xoo at the screen house. Rice leaves showing typical bacterial leaf blight (BLB) symptom were collected from various farmers’ fields. The samples were detached and put into paper envelopes, and were taken to the laboratory for iso

APA, Harvard, Vancouver, ISO, and other styles

35

Imtiaz, M., M. M. Abang, R. S. Malhotra, et al. "Pathotype IV, a New and Highly Virulent Pathotype of Didymella rabiei, Causing Ascochyta Blight in Chickpea in Syria." Plant Disease 95, no. 9 (2011): 1192. http://dx.doi.org/10.1094/pdis-04-11-0333.

Full text

Abstract:

The causal agent of Ascochyta blight disease of chickpea (Cicer arietinum L.) is highly variable because of the presence of a sexual phase (Didymella rabiei). There is also selection pressure on the pathogen due to wide adoption of improved resistant chickpea cultivars in some countries. The pathogen is able to produce pathotypes with specific virulence on particular cultivars. Three pathotypes, I, II, and III, have been reported (3). In this study, we confirmed the presence of a new and highly virulent pathotype that we designate as pathotype IV. To test the pathogenicity of the isolates coll

APA, Harvard, Vancouver, ISO, and other styles

36

Przetakiewicz, Anna. "DISTRIBUTION OF PCN PATHOTYPES IN POLAND." Plant Breeding and Seed Science, no. 79 (December 30, 2019): 3–8. http://dx.doi.org/10.37317/pbss-2019-0001.

Full text

Abstract:

Both Globodera rostochiensis (Wollenweber, 1923) Behrens, 1975 and Globodera pallida (Stone, 1973) are considered the most economically important nematode pest. Annual regional survey conduct in Poland have revealed high infestation of pathotype Ro1 to the northwest of the country and presence of new pathotype Ro5 of G. rostochiensis. In 2009-2013 fifty eight soil samples were tested. parasitic root organisms cause significant losses in quantity and quality of potato crops. In many European countries PCN have become a major problem in potato production mainly in starch potato cultivars. The pa

APA, Harvard, Vancouver, ISO, and other styles

37

Hjulsager, Charlotte Kristiane, Ole Søgaard Lund, and I. Elisabeth Johansen. "A New Pathotype of Pea seedborne mosaic virus Explained by Properties of the P3-6k1- and Viral Genome-Linked Protein (VPg)-Coding Regions." Molecular Plant-Microbe Interactions® 15, no. 2 (2002): 169–71. http://dx.doi.org/10.1094/mpmi.2002.15.2.169.

Full text

Abstract:

A fourth pathotype of Pea seedborne mosaic virus, a member of the genus Potyvirus, was identified by analysis of the infection profile on a panel of Pisum sativum lines. The new pathotype, designated P-3, was able to overcome resistance specified by the sbm-1 resistance gene but could not overcome resistance specified by the sbm-2 resistance gene. This infection profile distinguished P-3 from previously described pathotypes, P-1, P-2, and P-4. Analysis of chimeric viruses demonstrated that properties of the P3-6k1- and viral genome-linked protein (VPg)-coding regions accounted for the infectio

APA, Harvard, Vancouver, ISO, and other styles

38

Han, Xueyu. "Plasmodiophora brassicae in Yunnan and its Resistant Sources in Chinese Cabbage." International Journal of Agriculture and Biology 25, no. 04 (2021): 805–12. http://dx.doi.org/10.17957/ijab/15.1732.

Full text

Abstract:

The Williams differential system was employed for pathotype identification of 34 Plasmodiophora brassicaeroot samples collected from Yunnan Province and pathotypes 1, 2, 4, 10 and 14 were detected. Pathotype 4 was dominant with 70.59% of all the samples in Yunnan. The distribution of the P. brassicae pathotypes was mapped. Resistance to P. brassicae (clubroot disease) was investigated in 22 Chinese cabbage cultivars and it was found that the cultivar Shangpin had multiple resistances and was immune while Shangpin CR527 and Shangpin CR523 were resistant to P. brassicae. These cultivars can be u

APA, Harvard, Vancouver, ISO, and other styles

39

Jakir Hasan, Muhammad, Stephen E. Strelkov, Ronald J. Howard, and Habibur Rahman. "Screening of Brassica germplasm for resistance to Plasmodiophora brassicae pathotypes prevalent in Canada for broadening diversity in clubroot resistance." Canadian Journal of Plant Science 92, no. 3 (2012): 501–15. http://dx.doi.org/10.4141/cjps2010-006.

Full text

Abstract:

Hasan, M. J., Strelkov, S. E., Howard, R. J. and Rahman, H. 2012. Screening of Brassica germplasm for resistance to Plasmodiophora brassicae pathotypes prevalent in Canada for broadening diversity in clubroot resistance. Can. J. Plant Sci. 92: 501–515. Clubroot disease of crucifers, caused by Plasmodiophora brassicae, poses a threat to the Canadian canola industry, and the development of resistant cultivars is urgently needed. Germplasm resistant to local pathotype(s) is the prime requirement for breeding clubroot-resistant cultivars. The objective of this study was to identify Brassica germpl

APA, Harvard, Vancouver, ISO, and other styles

40

Poleij, Leo, and J. G. (Hans) van der Beek. "Evidence for pathotype mixtures on Solanum bulbocastanum in Meloidogyne chitwoodi but not in M. fallax." Nematology 10, no. 4 (2008): 575–84. http://dx.doi.org/10.1163/156854108784513851.

Full text

Abstract:

AbstractVariability for pathogenicity on seven Solanum bulbocastanum clones was studied in a collection of isolates of Meloidogyne chitwoodi and M. fallax from a wide range of geographical origins. Four different pathotypes could be distinguished within M. chitwoodi, while no specialisation was found in M. fallax. Meloidogyne chitwoodi isolates from the USA showed the largest variation; those from Europe belonged to one pathotype. In several M. chitwoodi isolates, the occurrence of pathotype mixtures was verified and for the first time reported in automictic Meloidogyne spp. The infrequently f

APA, Harvard, Vancouver, ISO, and other styles

41

Lashina, N. M., and O. S. Afanasenko. "Resistance of barley cultivars and accessions to pathotypes of the spot blotch causative agent." Proceedings on applied botany, genetics and breeding 185, no. 3 (2024): 239–55. http://dx.doi.org/10.30901/2227-8834-2024-3-239-255.

Full text

Abstract:

Background. The spot blotch disease caused by the hemibiotrophic fungus Bipolaris sorokiniana has become a serious problem for barley. Utilization of resistant or tolerant barley cultivars ensures sustainable diversity conservation and environmentfriendly crop production. Thus, supplying barley breeders with sources of resistance to harmful diseases is an urgent task. Materials and methods. A set of 100 barley accessions, earlier selected for different levels of resistance to B. sorokiniana, served as the material for this study. Eleven isolates of B. sorokiniana of various geographic origin,

APA, Harvard, Vancouver, ISO, and other styles

42

Keçeli, Alaettin. "The Changes in Susceptibility Status of the Old and of the Newly Registered Chickpea (Cicer arietinum L.) Cultivars with Respect to the Blight Disease Caused by the Pathotypes of Ascochyta rabiei (Pass.) Labr." Poljoprivreda 29, no. 1 (2023): 20–26. http://dx.doi.org/10.18047/poljo.29.1.3.

Full text

Abstract:

Blight disease, caused by Ascochyta rabiei (Pass.) Labrousse (teleomorph=Didymella rabiei), is one of the most important biotic stress factors affecting chickpea produc tion worldwide. The high variation in disease severity among different chickpea cul tivars and the decrease in the resistance of the cultivars over time make it necessary to test the cultivars regularly. The aim in this research was to determine and evalu ate the changes in the susceptibility of chickpea cultivars, which were developed in different years and widely cultivated, against A. rabiei pathotypes in Turkey. A three rep

APA, Harvard, Vancouver, ISO, and other styles

43

R.K, SAHU, and SAHU V.N. "INHERITANCE OF RESISTANCE TO FOUR PATHOTYPES OF BACTERIAL BLIGHT IN RICE CULTIVAR B. J. 1." Madras Agricultural Journal 73, December (1986): 697–700. http://dx.doi.org/10.29321/maj.10.a02333.

Full text

Abstract:

Genetics of resistance in the variety B. J. I was studied against four Philippines pathotypes. A single recessive gene controlled the resistance against the pathotypes PXO 61, PXO 86, and PXO 79 The gene also provided moderate level of resistance to pathotype PXO 71.

APA, Harvard, Vancouver, ISO, and other styles

44

Miyamoto, Y., Y. Ishii, A. Honda, et al. "Function of Genes Encoding Acyl-CoA Synthetase and Enoyl-CoA Hydratase for Host-Selective ACT-Toxin Biosynthesis in the Tangerine Pathotype of Alternaria alternata." Phytopathology® 99, no. 4 (2009): 369–77. http://dx.doi.org/10.1094/phyto-99-4-0369.

Full text

Abstract:

The tangerine pathotype of Alternaria alternata produces host-selective ACT-toxin and causes Alternaria brown spot disease. Sequence analysis of a genomic cosmid clone identified a part of the ACTT gene cluster and implicated two genes, ACTT5 encoding an acyl-CoA synthetase and ACTT6 encoding an enoyl-CoA hydratase, in the biosynthesis of ACT-toxin. Genomic Southern blots demonstrated that both genes were present in tangerine pathotype isolates producing ACT-toxin and also in Japanese pear pathotype isolates producing AK-toxin and strawberry pathotype isolates producing AF-toxin. ACT-, AK-, an

APA, Harvard, Vancouver, ISO, and other styles

45

Hyun, J. W., N. A. Peres, S. Y. Yi, et al. "Development of PCR Assays for the Identification of Species and Pathotypes of Elsinoë Causing Scab on Citrus." Plant Disease 91, no. 7 (2007): 865–70. http://dx.doi.org/10.1094/pdis-91-7-0865.

Full text

Abstract:

Two scab pathogens of citrus, Elsinoë fawcettii and E. australis, cause citrus scab and sweet orange scab, respectively, and pathotypes of each species have been described. The two species cannot be readily distinguished by morphological or cultural characteristics and can be distinguished only by host range and the sequence of the internal transcribed spacer (ITS) region. In this study, random amplified polymorphic DNA (RAPD) assays clearly distinguished E. fawcettii and E. australis, and the sweet orange and natsudaidai pathotypes within E. australis also could be differentiated. We develope

APA, Harvard, Vancouver, ISO, and other styles

46

Micheroli, Raphael, Muriel Elhai, Sam Edalat, et al. "Role of synovial fibroblast subsets across synovial pathotypes in rheumatoid arthritis: a deconvolution analysis." RMD Open 8, no. 1 (2022): e001949. http://dx.doi.org/10.1136/rmdopen-2021-001949.

Full text

Abstract:

ObjectivesTo integrate published single-cell RNA sequencing (scRNA-seq) data and assess the contribution of synovial fibroblast (SF) subsets to synovial pathotypes and respective clinical characteristics in treatment-naïve early arthritis.MethodsIn this in silico study, we integrated scRNA-seq data from published studies with additional unpublished in-house data. Standard Seurat, Harmony and Liger workflow was performed for integration and differential gene expression analysis. We estimated single cell type proportions in bulk RNA-seq data (deconvolution) from synovial tissue from 87 treatment

APA, Harvard, Vancouver, ISO, and other styles

47

Guo, Huanqiang, Quanjie Yao, Lin Chen, et al. "Virulence and Molecular Diversity in the Cochliobolus sativus Population Causing Barley Spot Blotch in China." Plant Disease 103, no. 9 (2019): 2252–62. http://dx.doi.org/10.1094/pdis-11-18-2103-re.

Full text

Abstract:

Spot blotch, caused by the fungal pathogen Cochliobolus sativus, is a limiting factor for barley (Hordeum vulgare) production in northeast China, which causes significant grain yield losses and kernel quality degradation. It is critical to determine the virulence diversity of C. sativus populations for barley resistance breeding and the judicious grouping of available resistance varieties according to the predominant pathotypes in disease epidemic regions. With little information on the barley pathogen in China, this study selected 12 typical barley genotypes to differentiate the pathotypes of

APA, Harvard, Vancouver, ISO, and other styles

48

Webster, John, Daniel Bogema, and Toni A. Chapman. "Comparative Genomics of Xanthomonas citri pv. citri A* Pathotype Reveals Three Distinct Clades with Varying Plasmid Distribution." Microorganisms 8, no. 12 (2020): 1947. http://dx.doi.org/10.3390/microorganisms8121947.

Full text

Abstract:

Citrus bacterial canker (CBC) is an important disease of citrus cultivars worldwide that causes blister-like lesions on host plants and leads to more severe symptoms such as plant defoliation and premature fruit drop. The causative agent, Xanthomonas citri pv. citri, exists as three pathotypes—A, A*, and Aw—which differ in their host range and elicited host response. To date, comparative analyses have been hampered by the lack of closed genomes for the A* pathotype. In this study, we sequenced and assembled six CBC isolates of pathotype A* using second- and third-generation sequencing technolo

APA, Harvard, Vancouver, ISO, and other styles

49

Radišek, Sebastjan, Jernej Jakše, and Branka Javornik. "Development of Pathotype-Specific SCAR Markers for Detection of Verticillium albo-atrum Isolates from Hop." Plant Disease 88, no. 10 (2004): 1115–22. http://dx.doi.org/10.1094/pdis.2004.88.10.1115.

Full text

Abstract:

Rapid polymerase chain reaction (PCR) assays were developed for the identification and detection of Verticillium albo-atrum hop pathotypes PG1 and PG2 from Slovenia. Of 17 pathotype-linked amplified fragment length polymorphism (AFLP) markers, 11 were cloned successfully and sequenced. To convert polymorphic AFLP markers into pathotype-specific sequence-characterized amplified region (SCAR) markers, 22 PG2- and 10 PG1-specific primer pairs were designed from 16 sequences. When primer specificity was tested on a wide range of Verticillium isolates, 10 PG2- and 6 PG1-specific primer pairs retain

APA, Harvard, Vancouver, ISO, and other styles

50

van Niekerk, B. D., Z. A. Pretorius, and W. H. P. Boshoff. "Occurrence and Pathogenicity of Puccinia hordei on Barley in South Africa." Plant Disease 85, no. 7 (2001): 713–17. http://dx.doi.org/10.1094/pdis.2001.85.7.713.

Full text

Abstract:

Although leaf rust, caused by Puccinia hordei, is considered an important disease of barley (Hordeum vulgare) and regularly reaches epidemic proportions, pathogenic variability has never been studied in South Africa. From 1994 to 1997, only one pathotype (SAPh 3231) was identified with virulence to resistance genes Rph1, Rph4, Rph5, Rph10, and Rph11. During 1998, a second pathotype (SAPh 7321) was identified, differing from pathotype SAPh 3231 only in virulence to Rph12. Pathotype SAPh 7321 increased rapidly in the area where it was first detected, resulting in localized epidemic outbreaks in

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!