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Journal articles on the topic 'Plant root pathogens'

Author: Grafiati

Published: 18 May 2024

Last updated: 31 July 2025

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1

Jousset, Alexandre, Laurène Rochat, Arnaud Lanoue, Michael Bonkowski, Christoph Keel, and Stefan Scheu. "Plants Respond to Pathogen Infection by Enhancing the Antifungal Gene Expression of Root-Associated Bacteria." Molecular Plant-Microbe Interactions® 24, no. 3 (2011): 352–58. http://dx.doi.org/10.1094/mpmi-09-10-0208.

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Plant health and fitness widely depend on interactions with soil microorganisms. Some bacteria such as pseudomonads can inhibit pathogens by producing antibiotics, and controlling these bacteria could help improve plant fitness. In the present study, we tested whether plants induce changes in the antifungal activity of root-associated bacteria as a response to root pathogens. We grew barley plants in a split-root system with one side of the root system challenged by the pathogen Pythium ultimum and the other side inoculated with the biocontrol strain Pseudomonas fluorescens CHA0. We used repor

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Thomashow, Linda S. "Biological control of plant root pathogens." Current Opinion in Biotechnology 7, no. 3 (1996): 343–47. http://dx.doi.org/10.1016/s0958-1669(96)80042-5.

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3

Delavaux, Camille S., Josh L. Schemanski, Geoffrey L. House, Alice G. Tipton, Benjamin Sikes, and James D. Bever. "Root pathogen diversity and composition varies with climate in undisturbed grasslands, but less so in anthropogenically disturbed grasslands." ISME Journal 15, no. 1 (2020): 304–17. http://dx.doi.org/10.1038/s41396-020-00783-z.

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AbstractSoil-borne pathogens structure plant communities, shaping their diversity, and through these effects may mediate plant responses to climate change and disturbance. Little is known, however, about the environmental determinants of plant pathogen communities. Therefore, we explored the impact of climate gradients and anthropogenic disturbance on root-associated pathogens in grasslands. We examined the community structure of two pathogenic groups—fungal pathogens and oomycetes—in undisturbed and anthropogenically disturbed grasslands across a natural precipitation and temperature gradient

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Dawadi, Sujan, Fulya Baysal-Gurel, Karla M. Addesso, Prabha Liyanapathiranage, and Terri Simmons. "Fire Ant Venom Alkaloids: Possible Control Measure for Soilborne and Foliar Plant Pathogens." Pathogens 10, no. 6 (2021): 659. http://dx.doi.org/10.3390/pathogens10060659.

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The purpose of this study was to evaluate fire ant venom alkaloids and an alarm pheromone analog against several plant pathogens, including Botrytis cinerea, Fusarium oxysporum, Phytophthora nicotianae, P. cryptogea, Pseudomonas syringae, Phytopythium citrinum, Rhizoctonia solani, Sclerotonia rolfsii, Xanthomonas axonopodis, and X. campestris. All pathogens were tested against red imported fire ant venom alkaloid extract and alarm pheromone compound for growth inhibition in in vitro assay. The venom alkaloid extract inhibited fungal and oomycete pathogens. Neither of the treatments were effect

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Biernacki, M., and B. D. Bruton. "Quantitative Response of Cucumis melo Inoculated with Root Rot Pathogens." Plant Disease 85, no. 1 (2001): 65–70. http://dx.doi.org/10.1094/pdis.2001.85.1.65.

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This experiment quantified the effects of three root rot pathogens on muskmelon (Cucumis melo L., var. cantalupensis) growth traits using computerized image analysis. Plants were grown from seed in sand infested with the soilborne pathogen Monosporascus cannonballus, Acremonium cucurbitacearum, or Rhizopycnis vagum. After 28 days in the growth chamber, images of plants were analyzed to quantify their response. Compared to noninoculated muskmelons, inoculated plants had significantly increased mean root diameter (45%), decreased root length (26%, primarily in roots of <0.5 mm diameter), decr

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Lee, Jang Hoon, Anne J. Anderson, and Young Cheol Kim. "Root-Associated Bacteria Are Biocontrol Agents for Multiple Plant Pests." Microorganisms 10, no. 5 (2022): 1053. http://dx.doi.org/10.3390/microorganisms10051053.

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Biological control is an important process for sustainable plant production, and this trait is found in many plant-associated microbes. This study reviews microbes that could be formulated into pesticides active against various microbial plant pathogens as well as damaging insects or nematodes. The focus is on the beneficial microbes that colonize the rhizosphere where, through various mechanisms, they promote healthy plant growth. Although these microbes have adapted to cohabit root tissues without causing disease, they are pathogenic to plant pathogens, including microbes, insects, and nemat

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Hanson, L. E. "Interaction of Rhizoctonia solani and Rhizopus stolonifer Causing Root Rot of Sugar Beet." Plant Disease 94, no. 5 (2010): 504–9. http://dx.doi.org/10.1094/pdis-94-5-0504.

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In recent years, growers in Michigan and other sugar beet (Beta vulgaris) production areas of the United States have reported increasing incidence of root rot with little or no crown or foliar symptoms in sugar beet with Rhizoctonia crown and root rot. In addition, Rhizoctonia-resistant beets have been reported with higher levels of disease than expected. In examining beets with Rhizoctonia root rot in Michigan, over 50% of sampled roots had a second potential root rot pathogen, Rhizopus stolonifer. Growing conditions generally were not conducive to disease production by this pathogen alone, s

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Stephens, Cameron M., Travis W. Gannon, Marc A. Cubeta, Tim L. Sit, and James P. Kerns. "Characterization and Aggressiveness of Take-All Root Rot Pathogens Isolated from Symptomatic Bermudagrass Putting Greens." Phytopathology® 112, no. 4 (2022): 811–19. http://dx.doi.org/10.1094/phyto-05-21-0215-r.

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Take-all root rot is a disease of ultradwarf bermudagrass putting greens caused by Gaeumannomyces graminis (Gg), Gaeumannomyces sp. (Gx), Gaeumannomyces graminicola (Ggram), Candidacolonium cynodontis (Cc), and Magnaporthiopsis cynodontis (Mc). Many etiological and epidemiological components of this disease remain unknown. Improving pathogen identification and our understanding of the aggressiveness of these pathogens along with growth at different temperatures will advance our knowledge of disease development to optimize management strategies. Take-all root rot pathogens were isolated from sy

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van West, P., B. M. Morris, B. Reid, et al. "Oomycete Plant Pathogens Use Electric Fields to Target Roots." Molecular Plant-Microbe Interactions® 15, no. 8 (2002): 790–98. http://dx.doi.org/10.1094/mpmi.2002.15.8.790.

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Plant roots generate electrical currents and associated electrical fields as a consequence of electrogenic ion transport at the root surface. Here we demonstrate that the attraction of swimming zoospores of oomycete plant pathogens to plant roots is mediated in part by electrotaxis in natural root-generated electric fields. The zones of accumulation of anode- or cathode-seeking zoospores adjacent to intact and wounded root surfaces correlated with their in vitro electrotactic behavior. Manipulation of the root electrical field was reflected in changes in the pattern of zoospore accumulation an

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10

Windisch, Saskia, Anja Walter, Narges Moradtalab, et al. "Role of Benzoic Acid and Lettucenin A in the Defense Response of Lettuce against Soil-Borne Pathogens." Plants 10, no. 11 (2021): 2336. http://dx.doi.org/10.3390/plants10112336.

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Soil-borne pathogens can severely limit plant productivity. Induced defense responses are plant strategies to counteract pathogen-related damage and yield loss. In this study, we hypothesized that benzoic acid and lettucenin A are involved as defense compounds against Rhizoctonia solani and Olpidium virulentus in lettuce. To address this hypothesis, we conducted growth chamber experiments using hydroponics, peat culture substrate and soil culture in pots and minirhizotrons. Benzoic acid was identified as root exudate released from lettuce plants upon pathogen infection, with pre-accumulation o

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Egamberdieva, Dilfuza, Farkhod Eshboev, Oybek Shukurov, Burak Alaylar, and Naveen Kumar Arora. "Bacterial Bioprotectants: Biocontrol Traits and Induced Resistance to Phytopathogens." Microbiology Research 14, no. 2 (2023): 689–703. http://dx.doi.org/10.3390/microbiolres14020049.

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Plant growth and nutrition are adversely affected by various factors such as water stress, high temperature, and plant pathogens. Plant-associated microbes play a vital role in the growth and development of their hosts under biotic and abiotic stresses. The use of a rhizosphere microbiome for plant growth stimulation and the biological control of fungal disease can lead to improved crop productivity. Mechanisms used by plant-growth-promoting rhizobacteria (PGPR) to protect plants from soilborne pathogens include antibiosis, the production of lytic enzymes, indole-3 acetic acid production, decr

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Posada-Vergara, Catalina, Stefan Vidal, and Michael Rostás. "Local Competition and Enhanced Defense: How Metarhizium brunneum Inhibits Verticillium longisporum in Oilseed Rape Plants." Journal of Fungi 9, no. 8 (2023): 796. http://dx.doi.org/10.3390/jof9080796.

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Metarhizium brunneum is a soil-borne fungal entomopathogen that can be associated with plant roots. Previous studies have demonstrated that root colonization by beneficial fungi can directly affect soil-borne pathogens through competition and antibiosis and can activate a systemic response in plants, resulting in a primed state for a faster and/or stronger response to stressors. However, the mechanisms by which Metarhizium inoculation ameliorates symptoms caused by plant pathogens are not well known. This study evaluated the ability of M. brunneum to protect oilseed rape (Brassica napus L.) pl

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Traquair, James A. "Fungal biocontrol of root diseases: endomycorrhizal suppression of cylindrocarpon root rot." Canadian Journal of Botany 73, S1 (1995): 89–95. http://dx.doi.org/10.1139/b95-230.

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Many reviews in the past decade outline the need to understand the complex interactions between fungal pathogens of roots, mycorrhizal fungi, mycorrhizosphere associates, and various climatic and edaphic factors to develop stable mycorrhizal biocontrol strategies. Cylindrocarpon root rot caused by Cylindrocarpon destructans is a good example of a replant disorder that is amenable to this type of control in nurseries and new or renovated orchard sites. Cylindrocarpon root rot was reduced by endomycorrhizal colonization of potted peach rootstocks with Glomus aggregatum under controlled environme

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Ma, Ka-Wai, Yulong Niu, Yong Jia, et al. "Coordination of microbe–host homeostasis by crosstalk with plant innate immunity." Nature Plants 7, no. 6 (2021): 814–25. http://dx.doi.org/10.1038/s41477-021-00920-2.

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AbstractPlants grown in natural soil are colonized by phylogenetically structured communities of microbes known as the microbiota. Individual microbes can activate microbe-associated molecular pattern (MAMP)-triggered immunity (MTI), which limits pathogen proliferation but curtails plant growth, a phenomenon known as the growth–defence trade-off. Here, we report that, in monoassociations, 41% (62 out of 151) of taxonomically diverse root bacterial commensals suppress Arabidopsis thaliana root growth inhibition (RGI) triggered by immune-stimulating MAMPs or damage-associated molecular patterns.

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Poole, Grant J., Martin Harries, D. Hüberli, et al. "Predicting Cereal Root Disease in Western Australia Using Soil DNA and Environmental Parameters." Phytopathology® 105, no. 8 (2015): 1069–79. http://dx.doi.org/10.1094/phyto-07-14-0203-r.

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Root diseases have long been prevalent in Australian grain-growing regions, and most management decisions to reduce the risk of yield loss need to be implemented before the crop is sown. The levels of pathogens that cause the major root diseases can be measured using DNA-based services such as PreDicta B. Although these pathogens are often studied individually, in the field they often occur as mixed populations and their combined effect on crop production is likely to vary across diverse cropping environments. A 3-year survey was conducted covering most cropping regions in Western Australia, u

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Persson, L., L. Bødker, and M. Larsson-Wikström. "Prevalence and Pathogenicity of Foot and Root Rot Pathogens of Pea in Southern Scandinavia." Plant Disease 81, no. 2 (1997): 171–74. http://dx.doi.org/10.1094/pdis.1997.81.2.171.

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The occurrence of root pathogens of vining pea was determined in field surveys in Sweden and Denmark from 1989 to 1994. The most serious yield-reducing root pathogen, Aphanomyces euteiches, was found in approximately one-third of the sampled fields in both Sweden and Denmark. In a few fields severely infested with this pathogen, there was a total crop failure. The most frequently isolated pathogens were Phoma medicaginis var. pinodella and Fusarium solani; the latter also was isolated from vascular tissue up to the seventh node level. Other pathogens isolated from roots were F. avenaceum, F. o

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Kim, Dohyun, Taiying Li, Jungkwan Lee, and Seung-Ho Lee. "Biological Efficacy of Endophytic Bacillus velezensis CH-15 from Ginseng against Ginseng Root Rot Pathogens." Research in Plant Disease 28, no. 1 (2022): 19–25. http://dx.doi.org/10.5423/rpd.2022.28.1.19.

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Ginseng is an important medicinal plant cultivated in East Asia for thousands of years. It is typically cultivated in the same field for 4 to 6 years and is exposed to a variety of pathogens. Among them, ginseng root rot is the main reason that leads to the most severe losses. In this study, endophytic bacteria were isolated from healthy ginseng, and endophytes with antagonistic effect against ginseng root rot pathogens were screened out. Among the 17 strains, three carried antagonistic effect, and were resistant to radicicol that is a mycotoxin produced by ginseng root rot pathogens. Finally,

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López-Sánchez, Aida, Miquel Capó, Jesús Rodríguez-Calcerrada, et al. "Exploring the Use of Solid Biofertilisers to Mitigate the Effects of Phytophthora Oak Root Disease." Forests 13, no. 10 (2022): 1558. http://dx.doi.org/10.3390/f13101558.

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Oak forests are facing multiple threats due to global change, with the introduction and expansion of invasive pathogens as one of the most detrimental. Here, we evaluated the use of soil biological fertiliser Biohumin® to improve the response of Quercus ilex L. to the soil-borne pathogen Phytophthora cinnamomi Rands by using one-year-old seedlings fertilised at 0, 12.5, and 25% concentrations of Biohumin® (v/v). Our hypothesis was that plant vigour and response to the pathogen would improve with Biohumin®. The effects of soil infestation and fertilisation were tested by assessing plant surviva

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Porto, Maria Alice Formiga, Márcia Michelle de Queiroz Ambrósio, Selma Rogéria de Carvalho Nascimento, Beatriz Letícia Silva da Cruz, and Taffarel Melo Torres. "Interaction of Fusarium solani, Macrophomina phaseolina and Rhizoctonia solani as root rot pathogens of Cucumis melo." Summa Phytopathologica 45, no. 4 (2019): 355–60. http://dx.doi.org/10.1590/0100-5405/182687.

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ABSTRACT Root diseases represent one of the main reasons for yield loss in melon crops, especially root and stem rots caused by pathogens like the fungi Fusarium solani (Fs), Macrophomina phaseolina (Mp) and Rhizoctonia solani (Rs), frequently observed in muskmelon either alone or in combination. The objective of this study was to evaluate the effect of the interaction between the pathogens Fs, Mp and Rs on the incidence and severity of root rot and muskmelon development. Two greenhouse experiments were performed using plastic pots with substrate infested with each pathogenic agent alone or in

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AVAN, Meltem, Gülsüm PALACIOĞLU, Tülin SARIGÜL ERTEK, et al. "Sugar beet root rot caused by oomycetous pathogens in Turkey and their control by seed treatmen." TURKISH JOURNAL OF AGRICULTURE AND FORESTRY 44, no. 6 (2020): 631–41. http://dx.doi.org/10.3906/tar-1910-55.

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The aim of this study was to determine the oomycetous pathogens causing root rot on sugar beet and test their control by seed treatment in Konya Province, Turkey. Oomycetous fungus-like pathogens of sugar beet were investigated using 866 plant samples collected at 2 growth stages, early seedling and late root, from fields in the Konya region of Turkey and 1 sample from the Thrace region. Herein, 10 oomycetous species belonging to 3 genera: Aphanomyces cochlioides, Phytophthora cryptogea, Ph. pseudocryptogea, Ph. megasperma, Ph. inundata, Pythium aphanidermatum, Py. helicoides, Py. heterothalli

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Delavault, Philippe. "Are root parasitic plants like any other plant pathogens?" New Phytologist 226, no. 3 (2020): 641–43. http://dx.doi.org/10.1111/nph.16504.

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Martin, F. N., and C. T. Bull. "Biological Approaches for Control of Root Pathogens of Strawberry." Phytopathology® 92, no. 12 (2002): 1356–62. http://dx.doi.org/10.1094/phyto.2002.92.12.1356.

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Soil fumigation with methyl bromide plus chloropicrin is used as a preplant treatment to control a broad range of pathogens in high-value annual crop production systems. In California, fumigation is used on approximately 10,125 ha of strawberry production to control pathogens ranging from Verticillium dahliae to root pruning pathogens such as Pythium, Rhizoctonia, or Cylindrocarpon spp. In addition to pathogen control, fumigation also causes an enhanced growth response of the plant and reduces weed pressure. The development of successful, long-term cost effective biocontrol strategies most lik

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Liu, Yunpeng, Lin Chen, Gengwei Wu, et al. "Identification of Root-Secreted Compounds Involved in the Communication Between Cucumber, the Beneficial Bacillus amyloliquefaciens, and the Soil-Borne Pathogen Fusarium oxysporum." Molecular Plant-Microbe Interactions® 30, no. 1 (2017): 53–62. http://dx.doi.org/10.1094/mpmi-07-16-0131-r.

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Colonization of plant growth–promoting rhizobacteria (PGPR) is critical for exerting their beneficial effects on the plant. Root exudation is a major factor influencing the colonization of both PGPR and soil-borne pathogens within the root system. However, the tripartite interaction of PGPR, plant roots, and soil-borne pathogens is poorly understood. We screened root exudates for signals that mediate tripartite interactions in the rhizosphere. In a split-root system, we found that root colonization of PGPR strain Bacillus amyloliquefaciens SQR9 on cucumber root was significantly enhanced by pr

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Sommermann, Loreen, Doreen Babin, Jan Helge Behr, et al. "Long-Term Fertilization Strategy Impacts Rhizoctonia solani–Microbe Interactions in Soil and Rhizosphere and Defense Responses in Lettuce." Microorganisms 10, no. 9 (2022): 1717. http://dx.doi.org/10.3390/microorganisms10091717.

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The long-term effects of agricultural management such as different fertilization strategies on soil microbiota and soil suppressiveness against plant pathogens are crucial. Therefore, the suppressiveness of soils differing in fertilization history was assessed using two Rhizoctonia solani isolates and their respective host plants (lettuce, sugar beet) in pot experiments. Further, the effects of fertilization history and the pathogen R. solani AG1-IB on the bulk soil, root-associated soil and rhizosphere microbiota of lettuce were analyzed based on amplicon sequencing of the 16S rRNA gene and I

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Shcherbakova, Larisa, Maksim Kartashov, Natalia Statsyuk, Tatyana Pasechnik, and Vitaly Dzhavakhiya. "Assessment of the Sensitivity of Some Plant Pathogenic Fungi to 6-Demethylmevinolin, a Putative Natural Sensitizer Able to Help Overcoming the Fungicide Resistance of Plant Pathogens." Antibiotics 9, no. 12 (2020): 842. http://dx.doi.org/10.3390/antibiotics9120842.

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Agricultural fungicides contaminate the environment and promote the spread of fungicide-resistant strains of pathogenic fungi. The enhancement of pathogen sensitivity to these pesticides using chemosensitizers allows the reducing of fungicide dosages without a decrease in their efficiency. Using Petri plate and microplate bioassays, 6-demethylmevinolin (6-DMM), a putative sensitizer of a microbial origin, was shown to affect both colony growth and conidial germination of Alternaria solani, A. alternata, Parastagonospora nodorum, Rhizoctonia solani, and four Fusarium species (F. avenaceum, F. c

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Bilgili, Ayşin. "The effectiveness of arbuscular mycorrhizal fungal species (Funneliformis mosseae, Rhizophagus intraradices, and Claroideoglomus etunicatum) in the biocontrol of root and crown rot pathogens, Fusarium solani and Fusarium mixture in pepper." PeerJ 13 (January 16, 2025): e18438. https://doi.org/10.7717/peerj.18438.

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This study evaluated the effectiveness of arbuscular mycorrhizal fungi (AMF) species, including Funneliformis mosseae (FM), Rhizophagus intraradices (RI), Claroideoglomus etunicatum (CE), and a Mycorrhizal mix (MM) comprising these three species, on pepper plants (Capsicum annuum L.) inoculated with two isolates of Fusarium solani (48-F. solani and 18-F. solani) and two isolates of Fusarium mix (50-F. mixture and 147-F. mixture). Analysis of variance (ANOVA)-Tukey statistics revealed that the effects of AMF inoculations on morphological parameters, disease severity, root colonization, and tota

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Ma, Jianbing, Juan Jaraba, Terrence L. Kirkpatrick, and Craig S. Rothrock. "Effects of Meloidogyne incognita and Thielaviopsis basicola on Cotton Growth and Root Morphology." Phytopathology® 104, no. 5 (2014): 507–12. http://dx.doi.org/10.1094/phyto-06-12-0120-r.

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Effects of the root-knot nematode Meloidogyne incognita and the fungal pathogen Thielaviopsis basicola on cotton seedling growth and root morphology were evaluated in controlled environmental experiments. Four pathogen treatments, including noninfested soil, soil infested with M. incognita, soil infested with T. basicola, and soil infested with both pathogens were evaluated at soil bulk densities (BDs) of 1.25 and 1.50 g/cm3. Plant growth and the morphology of the root systems were evaluated 44 days after planting. Infestation with M. incognita and T. basicola together significantly reduced se

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Loit, Kaire, Liina Soonvald, Alar Astover, Eve Runno-Paurson, Maarja Öpik, and Leho Tedersoo. "Temporal and Cultivar-Specific Effects on Potato Root and Soil Fungal Diversity." Agronomy 10, no. 10 (2020): 1535. http://dx.doi.org/10.3390/agronomy10101535.

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The soil fungal community plays an important role in determining plant growth and health. In this study, we investigated the fungal diversity and community composition in the roots and soil of 21 potato (Solanum tuberosum L.) cultivars using high-throughput sequencing at three different time points across the growing season. In soil and roots, the fungal richness and relative abundance of pathogens and saprotrophs were mainly affected by sampling time. While sampling time affected fungal composition in soil, root fungal communities were also significantly affected by cultivar. The cultivar had

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Weiland, Jerry E., Carolyn F. Scagel, Niklaus J. Grünwald, E. Anne Davis, Bryan R. Beck, and Val J. Fieland. "Variation in Disease Severity Caused by Phytophthora cinnamomi, P. plurivora, and Pythium cryptoirregulare on Two Rhododendron Cultivars." Plant Disease 102, no. 12 (2018): 2560–70. http://dx.doi.org/10.1094/pdis-04-18-0666-re.

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Rhododendrons are an important crop in the ornamental nursery industry, but are prone to Phytophthora root rot. Phytophthora root rot is a continuing issue on rhododendrons despite decades of research. Several Phytophthora species are known to cause root rot, but most research has focused on P. cinnamomi, and comparative information on pathogenicity is limited for other commonly encountered oomycetes, including Phytophthora plurivora and Pythium cryptoirregulare. In this study, three isolates each of P. cinnamomi, P. plurivora, and Py. cryptoirregulare were used to inoculate rhododendron culti

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van West, Pieter, Alex A. Appiah, and Neil A. R. Gow. "Advances in research on oomycete root pathogens." Physiological and Molecular Plant Pathology 62, no. 2 (2003): 99–113. http://dx.doi.org/10.1016/s0885-5765(03)00044-4.

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Graham, James H. "What do root pathogens see in mycorrhizas?" New Phytologist 149, no. 3 (2001): 357–59. http://dx.doi.org/10.1046/j.1469-8137.2001.00077.x.

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Coles, Donovin W., Sean L. Bithell, Meena Mikhael, William S. Cuddy, and Jonathan M. Plett. "Chickpea Roots Undergoing Colonisation by Phytophthora medicaginis Exhibit Opposing Jasmonic Acid and Salicylic Acid Accumulation and Signalling Profiles to Leaf Hemibiotrophic Models." Microorganisms 10, no. 2 (2022): 343. http://dx.doi.org/10.3390/microorganisms10020343.

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Hemibiotrophic pathogens cause significant losses within agriculture, threatening the sustainability of food systems globally. These microbes colonise plant tissues in three phases: a biotrophic phase followed by a biotrophic-to-necrotrophic switch phase and ending with necrotrophy. Each of these phases is characterized by both common and discrete host transcriptional responses. Plant hormones play an important role in these phases, with foliar models showing that salicylic acid accumulates during the biotrophic phase and jasmonic acid/ethylene responses occur during the necrotrophic phase. Th

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Msikita, W., B. Bissang, B. D. James, et al. "Prevalence and Severity of Nattrassia mangiferae Root and Stem Rot Pathogen of Cassava in Bénin." Plant Disease 89, no. 1 (2005): 12–16. http://dx.doi.org/10.1094/pd-89-0012.

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Root rot pathogens were found through diagnostic surveys in all departments (regions) of Bénin, West Africa, to affect 86 to 100% and 96 to 100% of cassava fields during the dry and rainy seasons, respectively. Disease incidence in individual fields ranged between 0 and 53%, and averaged 16 to 27% per department. Nattrassia mangiferae was consistently the most frequently isolated root rot pathogen (56% in the dry season and 22 to 52% in the rainy season). Pathogenicity of N. mangiferae was confirmed on four cultivars of cassava using stem cuttings and storage roots. For all four cultivars, N.

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Šišić, Adnan, Jelena Baćanović-Šišić, Fernanda M. Gamba, and Maria R. Finckh. "Didymella pinodella: An Important Pea Root Rot Pathogen in France to Watch Out For?" Journal of Fungi 10, no. 1 (2024): 44. http://dx.doi.org/10.3390/jof10010044.

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Root rot pathogens restrict pea and wheat production globally. In the EU, pea and pea-based cereal mixtures are being promoted; however, root rot pathogen dynamics in such mixtures are poorly understood. Winter pea and wheat were grown either in pure stands or in mixtures in the field in western France, and the severity of root rot in pea, wheat, and their mixtures, as well as the key pathogens associated with these crops, were assessed. Disease severity was moderate in pea and low in wheat, with no effect of sowing pattern. Didymella pinodella, a previously unreported pathogen in the pea–root

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Nicomrat, Duongruitai, Pattarika Soongsombat, Nednapa Suenonmueng, and Ninlawan Marjang. "An Antagonism of Isolates of Root-Associated Bacteria Consortia Habituating in Banana Rhizosphere." Applied Mechanics and Materials 879 (March 2018): 83–88. http://dx.doi.org/10.4028/www.scientific.net/amm.879.83.

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Microbial diversity based on plant-microbe interaction as well as most fungal diseases which are such multipathogen complexes have been long researched. Most beneficial microbes promote the growth of the plant but inhibit the growth of plant pathogen as biocontrol agents and are reported for their establishment being microbial communities associated to the plant roots. We were interested in understanding the antagonistic activity of root-associated bacterial communities in the rhizospheres. In this experiment, common bacteria associated with banana root exudation that were cultivated and isola

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Bongard, Cindy. "A review of the influence of root-associating fungi and root exudates on the success of invasive plants." NeoBiota 14 (August 22, 2012): 21–45. https://doi.org/10.3897/neobiota.14.2927.

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Plant-fungal interactions are essential for understanding the distribution and abundance of plants species. Recently, arbuscular mycorrhizal fungal (AMF) partners of non-indigenous invasive plants have been hypothesized to be a critical factor influencing the invasion processes. AMF are known to improve nutrient and moisture uptake, as well as disrupt parasitic and pathogenic microbes in the host plant. Such benefits may enable invaders to establish significant and persistent populations in environments previously dominated by natives. Coupling these findings with studies on invader pathogen-d

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Gautam, R., SK Singh, and V. Sharma. "Suppression of soil-borne root pathogens of arid legumes by Sinorhizobium saheli." SAARC Journal of Agriculture 13, no. 1 (2015): 63–74. http://dx.doi.org/10.3329/sja.v13i1.24181.

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The productivity of arid legumes in arid and semi-arid tracks remains virtually stagnant over decades because of their susceptibility to root diseases. The information on interaction of beneficial nitrogen fixing rhizobia with particular reference to arid legumes of the region is limited. Systematic studies on predominant species Sinorhizobium saheli in management of root pathogens in arid legumes were undertaken. In-vitro interactions of root pathogens and S. saheli isolated from arid legumes significantly suppressed the growth of all fungal pathogens in presence of S. saheli. In addition the

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Ziedan, El-Sayed, Ibrahim Elewa, Mostafa Mostafa, and Ahmed Sahab. "Application of Mycorrhizae for Controlling Root Diseases of Sesame." Journal of Plant Protection Research 51, no. 4 (2011): 355–61. http://dx.doi.org/10.2478/v10045-011-0058-0.

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Application of Mycorrhizae for Controlling Root Diseases of Sesame Vesicular arbuscular mycorrhizae fungi (VAM) was evaluated as a biotic agent for controlling wilt and root-rot diseases of sesame caused by Fusarium oxysporum f. sp. sesami (Zap.) Cast and Macrophomina phaseolina (Moubl) Ashby pathogens can infect sesame plant at any growth stage causing considerable losses of seed yield. Spores of VA mycorrhizae fungi (Glomus spp.) were collected from the soil around the root systems of sesame plants then propagated on roots of Suddan grass (Sorghum vulgare var. sudanese). Under green house an

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Dufresne, Marie, and Anne E. Osbourn. "Definition of Tissue-Specific and General Requirements for Plant Infection in a Phytopathogenic Fungus." Molecular Plant-Microbe Interactions® 14, no. 3 (2001): 300–307. http://dx.doi.org/10.1094/mpmi.2001.14.3.300.

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Although plant diseases are usually characterized by the part of the plant that is affected (e.g., leaf spots, root rots, wilts), surprisingly little is known about the factors that condition the ability of pathogens to colonize different plant tissues. Here we demonstrate that the leaf blast pathogen Magnaporthe grisea also can infect plant roots, and we exploit this finding to distinguish tissue-specific and general requirements for plant infection. Tests of a M. grisea mutant collection identified some mutants that were defective specifically in infection of either leaves or roots, and othe

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Crow, William T. "Diagnosis of Trichodorus obtusus and Paratrichodorus minor on Turfgrasses in the Southeastern United States." Plant Health Progress 6, no. 1 (2005): 20. http://dx.doi.org/10.1094/php-2005-0121-01-dg.

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“Stubby-root” nematodes are of agricultural importance as plant-pathogens and as vectors for plant viruses. Two species of stubby-root nematode have been identified as pathogens on warm-season turfgrasses in the southern U.S.: Paratrichodorus minor and Trichodorus obtusus. Both are pathogens of bermudagrass and St. Augustinegrass, with T. obtusus more damaging than P. minor. Methods for distinguishing these species are described that do not require mounting of specimens and can be used at ×100 magnification or less. Accepted for publication 24 November 2004. Published 21 January 2005.

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Gossen, Bruce D., Robert L. Conner, Kan-Fa Chang, et al. "Identifying and Managing Root Rot of Pulses on the Northern Great Plains." Plant Disease 100, no. 10 (2016): 1965–78. http://dx.doi.org/10.1094/pdis-02-16-0184-fe.

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Pulse crops (annual grain legumes such as field pea, lentil, dry bean, and chickpea) have become an important component of the cropping system in the northern Great Plains of North America over the last three decades. In many areas, the intensity of damping-off, seedling blight, root rot, and premature ripening of pulse crops is increasing, resulting in reduction in stand establishment and yield. This review provides a brief description of the important pathogens that make up the root rot complex and summarizes root rot management on pulses in the region. Initially, several specific Fusarium s

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Roberson, Amanda, Carla Spence, and Harsh P. Bais. "Underground communication: Belowground signalling mediates diverse root–root and root–microbe interactions." Biochemist 36, no. 5 (2014): 32–35. http://dx.doi.org/10.1042/bio03605032.

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Plants are stationary organisms, generally restricted to one location for the duration of their growth and development, which is why the need for clear means of information exchange becomes paramount. Above-ground, plants readily emit pungent volatile substances to signal danger of eminent attack to their relatives or to attract the enemy of their enemies. However, most plant communication is occurring below the ground, where plants are secreting compounds from their roots to send messages to neighbouring plants, microbes and insects in the rhizosphere. Although we think of plants as silent an

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Rekah, Yael, D. Shtienberg, and J. Katan. "Spatial Distribution and Temporal Development of Fusarium Crown and Root Rot of Tomato and Pathogen Dissemination in Field Soil." Phytopathology® 89, no. 9 (1999): 831–39. http://dx.doi.org/10.1094/phyto.1999.89.9.831.

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The spatial distribution and temporal development of tomato crown and root rot, caused by Fusarium oxysporum f. sp. radicis-lycopersici, were studied in naturally infested fields in 1996 and 1997. Disease progression fit a logistic model better than a monomolecular one. Geostatistical analyses and semivariogram calculations revealed that the disease spreads from infected plants to a distance of 1.1 to 4.4 m during the growing season. By using a chlorate-resistant nitrate nonutilizing (nit) mutant of F. oxysporum f. sp. radicis-lycopersici as a “tagged” inoculum, the pathogen was found to sprea

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Ehwarieme, D. A., Blessing Offuah, and E. M. Ilondu. "EVALUATION OF THE PHYTOCHEMICAL AND ANTIMICROBIAL ACTIVITY OF Kalanchoe pinnata AGAINST PLANT PATHOGENS ISOLATED FROM DISEASED PLANT PATHOGENS." FUDMA JOURNAL OF SCIENCES 5, no. 3 (2021): 310–14. http://dx.doi.org/10.33003/fjs-2021-0503-755.

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The antimicrobial activity of Kalanchoe pinnata (Syn Bryophyllum pinnatum) against clinical pathogen is well documented in literature but there is paucity of information on its effect against plant pathogens. This work attempts to evaluate inhibitory activity of Kalanchoe pinnata (Syn Bryophyllum pinnatum) on selected plant pathogens. Aqueous, acetone, ethanol and methanol leaf, stem and root extracts of Kalanchoe pinnata (Syn Bryophyllum pinnatum) were prepared using standard techniques. Extracts were tested against bacteria and fungi isolated from some diseased plants, both singly and in com

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Ayala-Doñas, Alejandro, Miguel de Cara-García, Miguel Talavera-Rubia, and Soledad Verdejo-Lucas. "Management of Soil-Borne Fungi and Root-Knot Nematodes in Cucurbits through Breeding for Resistance and Grafting." Agronomy 10, no. 11 (2020): 1641. http://dx.doi.org/10.3390/agronomy10111641.

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Soil-borne pathogenic fungi (SBPF) and root-knot nematodes (RKN) co-exist in the rhizosphere and are major pathogens causing root diseases in cucurbits. Current knowledge on soil-borne pathogens of cucurbit crops grown under protected cultivation, their host-pathogen interactions, and mechanisms of resistance has been reviewed. Plant resistance is an effective and sustainable method to control soil-borne diseases and the available resistant cultivars and rootstocks to key soil-borne pathogens are reported. The importance of proper pathogen diagnosis in the right choice of cultivar or rootstock

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Xue, Allen G. "Biological Control of Pathogens Causing Root Rot Complex in Field Pea Using Clonostachys rosea Strain ACM941." Phytopathology® 93, no. 3 (2003): 329–35. http://dx.doi.org/10.1094/phyto.2003.93.3.329.

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Pea root rot complex (PRRC), caused by Alternaria alternata, Aphanomyces euteiches, Fusarium oxysporum f. sp. pisi, F. solani f. sp. pisi, Mycosphaerella pinodes, Pythium spp., Rhizoctonia solani, and Sclerotinia sclerotiorum, is a major yield-limiting factor for field pea production in Canada. A strain of Clonostachys rosea (syn. Gliocladium roseum), ACM941 (ATCC 74447), was identified as a mycoparasite against these pathogens. When grown near the pathogen, ACM941 often was stimulated to produce lateral branches that grew directly toward the pathogen mycelium, typically entwining around the p

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Mannai, Sabrine, and Naima Boughalleb-M’Hamdi. "Antimicrobial Evaluation of Asphodelus microcephalus Extracts and Fine Powder of Dried Organs Against Fusarium and Oomycetes Responsible for Apple and Peach Decline Disease." Pathogens 14, no. 5 (2025): 401. https://doi.org/10.3390/pathogens14050401.

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Seedlings root and collar rot is an important disease that causes a reduction in plant production. The goal of this investigation was to evaluate the in vitro and in vivo efficiency of powdered preparation of dried Asphodelus microcephalus of fruits (PPDF), leaves (PPDL), and roots (PPDR) against species of Fusarium and Pythiaceaes associated with this disease in Tunisian nurseries. The in vitro tests of methanolic and aqueous extracts of different Asphodelus organs showed their efficacy in reducing the pathogen mycelium growth. The in vivo assay of powdered preparation of this dried plant rev

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Basu, Muthuramalingam, and Karuppagnaniar Santhaguru. "Impact of Glomus Fasciculatum and Fluorescent Pseudomonas on Growth Performance of Vigna Radiata (L.) Wilczek Challenged with Phytopathogens." Journal of Plant Protection Research 49, no. 2 (2009): 190–94. http://dx.doi.org/10.2478/v10045-009-0028-y.

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Impact ofGlomus Fasciculatumand FluorescentPseudomonason Growth Performance ofVigna Radiata(L.) Wilczek Challenged with PhytopathogensFusarium oxysporumandRhizoctonia solaniare the major soil-borne pathogens causing growth and yield depression. The present study focused on the ability of fluorescentPseudomonasandGlomus fasciculatumon growth performance ofVigna radiatain pathogen-infested soil. The percent colonization byG. fasciculatumindicated an increase of the presence of fluorescentPseudomonasand a decrease of the presence ofFusarium oxysporumorRhizoctonia solani. However, the reduction of

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Sikandar, Aatika, Yixue Mo, Bochang Chen, Yasar Nishat, and Haiyan Wu. "Influence of Meloidogyne incognita and Fusarium oxysporum on Growth, Physiological, Biochemical, and Root Morphology in Tomato Hybrids Cultivars." Agronomy 15, no. 4 (2025): 890. https://doi.org/10.3390/agronomy15040890.

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Soil-borne pathogens can severely reduce vegetable crop output and quality. A disease complex may develop when many soil-borne pathogens attack a crop simultaneously, which can cause more damage. The soil-borne fungus Fusarium oxysporum (Fo) and the nematode Meloidogyne incognita (Mi) significantly reduce global tomato (Solanum lycopersicum L.) yields. After a soil-borne pathogenic infection, plants undergo numerous changes. Therefore, we conducted the present study to examine the impact of soil-borne pathogens Fo and Mi on the growth, physiology, biochemical, and root morphology of tomato cul

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Hiremath, Shivanand S., Narsing Laxmi Prasanna, Sudhakar S, et al. "A Review on Role of Root Exudates in Shaping Plant-Microbe-Pathogen Interactions." Journal of Advances in Microbiology 24, no. 12 (2024): 1–17. http://dx.doi.org/10.9734/jamb/2024/v24i12868.

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Root exudates are diverse compounds secreted by plant roots that significantly influence the rhizosphere-where complex interactions among plants, microbes, and pathogens occur. These exudates include sugars, amino acids, organic acids, phenolics, and volatile organic compounds, which collectively shape the microbial community structure in the soil. By attracting beneficial microbes like rhizobia, arbuscular mycorrhizal fungi (AMF), and plant growth-promoting rhizobacteria (PGPR), root exudates enhance nutrient acquisition, promote plant growth, and improve resistance to environmental stresses.

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