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Relevant bibliographies by topics / Pycnidiospore

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Journal articles

Academic literature on the topic 'Pycnidiospore'

Author: Grafiati

Published: 22 July 2023

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Journal articles on the topic "Pycnidiospore"

1

Guo, X. W., and W. G. D. Fernando. "Seasonal and Diurnal Patterns of Spore Dispersal by Leptosphaeria maculans from Canola Stubble in Relation to Environmental Conditions." Plant Disease 89, no. 1 (2005): 97–104. http://dx.doi.org/10.1094/pd-89-0097.

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Seasonal and diurnal patterns of spore dispersal by Leptosphaeria maculans, which causes blackleg disease of canola, were studied in two consecutive field seasons using a 7-day Burkard spore sampler and rotorod impaction spore samplers. Ascospores of L. maculans were trapped from mid-June to the end of July, whereas pycnidiospores were trapped from mid-July until the end of July or early August. Ascospores and pycnidiospores were trapped between 9:00 P.M. and 4:00 A.M., when air temperatures were 13 to 18°C and relative humidity was >80%. Peak ascospore and pycnidiospore dispersal was assoc

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2

Chen, Wei-Qun, David P. Morgan, Dan Felts, and Themis J. Michailides. "Antagonism of Paenibacillus lentimorbus to Botryosphaeria dothidea and Biological Control of Panicle and Shoot Blight of Pistachio." Plant Disease 87, no. 4 (2003): 359–65. http://dx.doi.org/10.1094/pdis.2003.87.4.359.

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A potential microbial fungicide, Paenibacillus lentimorbus isolate CBCA-2, against Botryosphaeria dothidea, the pistachio panicle and shoot blight fungus, was obtained from healthy pistachio leaves by both in vitro and in vivo screening techniques. CBCA-2 caused 100% inhibition of pycnidiospore germination after 24 h incubation at 25°C. Malformation of pycnidiospores and hyphae, and lysis and swollen pycnidiospores of B. dothidea occurred in the presence of cell suspensions of CBCA-2. Among the five media tested, nutrient yeast dextrose broth significantly increased the production of antifunga

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3

Zhang, Jin Xiu, W. G. Dilantha Fernando, and Allen G. Xue. "Daily and seasonal spore dispersal by Mycosphaerella pinodes and development of mycosphaerella blight of field pea." Canadian Journal of Botany 83, no. 3 (2005): 302–10. http://dx.doi.org/10.1139/b05-003.

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Daily and seasonal spore dispersal of Mycosphaerella pinodes (Berk & Bloxam) Vestergren and the relationship of spore dispersal to distance and disease severity were investigated in a pea field in western Canada during two consecutive years. Most ascospores were released in response to rain events, during the first 2327 d after the inoculum source area was infested with naturally diseased pea residue, whereas most pycnidiospores were trapped during the first 20 d. For both ascospores and pycnidiospores, the highest peaks of spore release occurred during the first 1420 d after infestation

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4

Dorrance, A. E., O. K. Miller, and H. L. Warren. "Comparison of Stenocarpella maydis Isolates for Isozyme and Cultural Characteristics." Plant Disease 83, no. 7 (1999): 675–80. http://dx.doi.org/10.1094/pdis.1999.83.7.675.

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Isolates of Stenocarpella maydis from seed companies and plant disease clinics in the United States and the Republic of South Africa were assayed for isozyme polymorphisms and cultural variability. A low level of isozyme polymorphisms was detected in this collection of isolates. Isozyme polymorphisms were detected for α-esterase, hexose kinase, and malate dehydroge-nase of the enzymes assayed. Fungi often have limited variability among isozyme profiles, and this is especially true for fungi that have host specialization such as biotrophs or fungi with formae speciales designations. Optimum gro

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5

Galper, S., A. Sztejnberg, and N. Lisker. "Scanning electron microscopy of the ontogeny of Ampelomyces quisqualis pycnidia." Canadian Journal of Microbiology 31, no. 10 (1985): 961–64. http://dx.doi.org/10.1139/m85-181.

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Observations on Ampelomyces quisqualis disclosed that the pycnidium may originate either from one cell of a single pycnidiospore, or from one hyphal cell. In the first case the pycnidiospore becomes two celled and swollen and a profuse germination of one of the two swollen spore cells can be observed. Later, the short hyphae branches, interweave, and anastomose to form a compact network around the mother spore, the pycnidium primordium. Similarly, we observed profuse branching in a single hyphal cell. The newly formed branches interweave and anastomose to form a compact network which gives ris

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6

Hu, Jiahuai, Evan G. Johnson, Nan-Yi Wang, Tiago Davoglio, and Megan M. Dewdney. "qPCR Quantification of Pathogenic Guignardia citricarpa and Nonpathogenic G. mangiferae in Citrus." Plant Disease 98, no. 1 (2014): 112–20. http://dx.doi.org/10.1094/pdis-04-13-0465-re.

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Citrus black spot, a major citrus disease caused by Guignardia citricarpa, was recently introduced in Florida. The nonpathogenic fungal endophyte G. mangiferae is commonly found in the same citrus tissues as G. citricarpa. Quantitative polymerase chain reaction (qPCR) assays based on internal transcribed spacer (ITS)-1 genes were developed to detect, quantify, and distinguish between these morphologically similar organisms in environmental samples. The primer/probe sets GCITS and GMITS were more than 95% efficient in single-set reactions in complex environmental DNA samples. Detection of 10 fg

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7

Li, Hua, John Kuo, Martin John Barbetti, and Krishnapillai Sivasithamparam. "Differences in the responses of stem tissues of spring-type Brassica napus cultivars with polygenic resistance and single dominant gene-based resistance to inoculation with Leptosphaeria maculans." Canadian Journal of Botany 85, no. 2 (2007): 191–203. http://dx.doi.org/10.1139/b06-159.

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Six spring-type Brassica napus L. cultivars, either susceptible or with polygenic or monogenic resistance, were inoculated with Leptosphaeria maculans (Desmaz.) Ces. & De Not. (organism causing phoma stem canker in crucifers) to investigate differences in the responses of host stem tissues to the pathogen. At growth stage 1.06, plants were inoculated with pycnidiospores at the junction of the petiole and stem. The pre-penetration and penetration phases were examined along with the histological, ultrastructural, and histochemical responses. The processes of pycnidiospore attachment, germina

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8

Moyo, Providence, Paul H. Fourie, Siyethemba L. Masikane, et al. "The Effects of Postharvest Treatments and Sunlight Exposure on the Reproductive Capability and Viability of Phyllosticta citricarpa in Citrus Black Spot Fruit Lesions." Plants 9, no. 12 (2020): 1813. http://dx.doi.org/10.3390/plants9121813.

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Citrus black spot (CBS) is caused by Phyllosticta citricarpa, which is classified as a quarantine organism in certain countries whose concerns are that CBS-infected fruit may be a pathway for introduction of the pathogen. This study evaluated the reproductive capability and viability of P. citricarpa under simulated conditions in which the whole fruit, peel segments, or citrus pulp with CBS lesions were discarded. Naturally infected ‘Midknight’ Valencia orange and ‘Eureka’ lemon fruit, either treated using standard postharvest sanitation, fungicide, and wax coating treatments or untreated, wer

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9

Shaw, Brian D., and H. C. Hoch. "Ca2+ Regulation of Phyllosticta ampelicida Pycnidiospore Germination and Appressorium Formation." Fungal Genetics and Biology 31, no. 1 (2000): 43–53. http://dx.doi.org/10.1006/fgbi.2000.1223.

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10

Ma, Zhonghua, and Themis J. Michailides. "Characterization of Botryosphaeria dothidea Isolates Collected from Pistachio and Other Plant Hosts in California." Phytopathology® 92, no. 5 (2002): 519–26. http://dx.doi.org/10.1094/phyto.2002.92.5.519.

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Eighty-six isolates of Botryosphaeria dothidea, the causal agent of Botryosphaeria panicle and shoot blight of pistachio, were collected from pistachio and other plant hosts in California. The isolates were characterized by microsatellite-primed polymerase chain reaction (MP-PCR), sequences of the nuclear ribosomal DNA internal transcribed spacer region (ITS1, 5.8S gene, and ITS2), morphological and cultural characters, osmotic and fungicide sensitivity, and pathogenicity on pistachio. Three groups of these isolates were identified based upon analysis of MP-PCR data and ITS sequences. Group I

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