keyword
https://read.qxmd.com/read/38537140/first-report-of-soybean-root-rot-caused-by-fusarium-proliferatum-in-the-republic-of-korea
#1
JOURNAL ARTICLE
In-Jeong Kang, Mirang Lee, Sang Yun Han, Yul-Ho Kim, Sungwoo Lee
Fusarium species are widespread soilborne pathogens that can cause damping-off, root rot, and wilting in soybean [ Glycine max (L.) Merrill], subsequently leading to significant yield suppression. Several Fusarium spp. have already been documented for their pathogenicity on soybean plants in the Republic of Korea. The nationwide monitoring of soybean diseases continues to identify new pathogenic Fusarium spp. In 2016, five plant samples at R3-R4 growth stages, showing symptoms of wilting in the upper parts and root rot, were collected in Suwon, Gyeonggi, Republic of Korea...
March 27, 2024: Plant Disease
https://read.qxmd.com/read/38517318/mechanism-of-oxalate-decarboxylase-oxd_s12-from-bacillus-velezensis-bvz45-1-in-defense-against-cotton-verticillium-wilt
#2
JOURNAL ARTICLE
Ying Sun, Na Yang, Sirui Li, Fei Chen, Yijing Xie, Canming Tang
Verticillium wilt, a soilborne vascular disease caused by Verticillium dahliae, strongly affects cotton yield and quality. In this study, an isolated rhizosphere bacterium, designated Bacillus velezensis BvZ45-1, exhibited greater than 46% biocontrol efficacy against cotton verticillium wilt under greenhouse and field conditions. Moreover, through crude protein extraction and mass spectrometry analysis, we found many antifungal compounds present in the crude protein extract of BvZ45-1. The purified oxalate decarboxylase Odx_S12 from BvZ45-1 inhibited the growth of V...
March 22, 2024: Journal of Experimental Botany
https://read.qxmd.com/read/38506911/distribution-of-three-verticillium-dahliae-races-in-coastal-california-and-evaluation-of-resistance-in-lettuce
#3
JOURNAL ARTICLE
Mihir K Mandal, Steve Koike, Cayla Tsuchida, Hanane Stanghellini, Jennifer Guerrero, German Valentin Sandoya Miranda, Steven J Klosterman, Ivan Simko, Krishna V Subbarao
Verticillium wilt, caused by Verticillium dahliae, is one of the most devastating soilborne diseases of lettuce (Lactuca sativa L.). There are three races of V. dahliae and each race has been characterized by markers representing race-specific effectors. Race 1 is differentiated by the presence of the functional secretory Ave1 effector. Similarly, races 2 and 3 are differentiated by effectors VdR2e and VdR3e, respectively. While the presence of race 1 in coastal California was well-established, the presence of effector-based races 2 and 3 was uncertain...
March 20, 2024: Plant Disease
https://read.qxmd.com/read/38487295/transgressive-segregation-hopeful-monsters-and-phenotypic-selection-drove-rapid-genetic-gains-and-breakthroughs-in-predictive-breeding-for-quantitative-resistance-to-macrophomina-in-strawberry
#4
JOURNAL ARTICLE
Steven J Knapp, Glenn S Cole, Dominique D A Pincot, Christine Jade Dilla-Ermita, Marta Bjornson, Randi A Famula, Thomas R Gordon, Julia M Harshman, Peter M Henry, Mitchell J Feldmann
Two decades have passed since the strawberry ( Fragaria x ananassa ) disease caused by Macrophomina phaseolina , a necrotrophic soilborne fungal pathogen, began surfacing in California, Florida, and elsewhere. This disease has since become one of the most common causes of plant death and yield losses in strawberry. The Macrophomina problem emerged and expanded in the wake of the global phase-out of soil fumigation with methyl bromide and appears to have been aggravated by an increase in climate change-associated abiotic stresses...
February 2024: Horticulture Research
https://read.qxmd.com/read/38482895/use-of-natural-based-commercial-products-as-an-alternative-for-providing-bioprotection-against-verticillium-wilt-of-olive
#5
JOURNAL ARTICLE
Begoña I Antón-Domínguez, Miriam Díaz-Díaz, Francisca A Acedo-Antequera, Carlos Trapero, Carlos Agustí-Brisach
BACKGROUND: Due to the ineffectiveness of existing control methods against Verticillium dahliae, the causal agent of Verticillium wilt of olive (Olea europaea; VWO), it is necessary to search for sustainable and environmentally friendly alternatives such as bioprotection by products based on plant extracts and other naturally synthesized compounds. Therefore, the main objective of this study was to evaluate the effects of seven natural-based commercial products on the inhibition of mycelial growth, the germination of V...
March 14, 2024: Journal of the Science of Food and Agriculture
https://read.qxmd.com/read/38476947/-trichoderma-application-methods-differentially-affect-the-tomato-growth-rhizomicrobiome-and-rhizosphere-soil-suppressiveness-against-fusarium-oxysporum
#6
JOURNAL ARTICLE
Ananda Y Bandara, Seogchan Kang
Trichoderma spp. are widely used to enhance crop growth and suppress diverse diseases. However, inconsistent field efficacy remains a major barrier to their use as a reliable alternative to synthetic pesticides. Various strategies have been investigated to enhance the robustness of their application. Here, we evaluated how T. virens application methods (pre-, at-, and post-transplant) affect the growth of two tomato varieties and their rhizosphere fungal and bacterial communities. Although the greatest rhizosphere abundance of T...
2024: Frontiers in Microbiology
https://read.qxmd.com/read/38472439/a-genome-wide-association-study-for-resistance-to-fusarium-wilt-fusarium-oxysporum-f-sp-vasinfectum-race-4-in-diploid-cotton-gossypium-arboreum-%C3%A2-and-resistance-transfer-to-tetraploid-gossypium-hirsutum
#7
JOURNAL ARTICLE
Abdelraheem Abdelraheem, Yi Zhu, Linghe Zeng, Salliana Stetina, Jinfa Zhang
Fusarium wilt, caused by the soilborne fungus Fusarium oxysporum f. sp. vasinfectum (FOV), is a devastating disease affecting cotton (Gossypium spp.) worldwide. Understanding the genetic basis of resistance in diploid cotton and successfully transferring the resistance to tetraploid Upland cotton (G. hirsutum) are crucial for developing resistant cotton cultivars. Although numerous studies have been conducted to investigate the genetic basis of Fusarium wilt in tetraploid cotton, little research has been conducted on diploid species...
March 13, 2024: Molecular Genetics and Genomics: MGG
https://read.qxmd.com/read/38468137/-spongospora-subterranea-f-sp-subterranea-sss-affects-plant-susceptibility-to-subsequent-pathogen-infections-under-controlled-environment-conditions
#8
JOURNAL ARTICLE
Ibrahim Kutay Ozturk, Elizabeth Buchholz, Ally Bentley, Dennis A Halterman, Renee Rioux
Spongospora subterranea f. sp. subterranea (Sss) is a soilborne potato pathogen responsible for causing powdery scab on tubers and galls on roots, reducing root water uptake through colonizing root hairs, and vectoring of Potato mop-top virus (PMTV). However, effects of Sss on overall plant susceptibilities against subsequent infections of potato pathogens above ground have not been previously reported. This study aimed to investigate the effects of Sss on root and tuber disease expression, yield, and susceptibilities to subsequent late blight and white mold infections across six potato varieties...
March 11, 2024: Plant Disease
https://read.qxmd.com/read/38399655/deciphering-differences-in-microbial-community-diversity-between-clubroot-diseased-and-healthy-soils
#9
JOURNAL ARTICLE
Huajun Kang, Ali Chai, Zihan Lin, Yanxia Shi, Xuewen Xie, Lei Li, Tengfei Fan, Sheng Xiang, Jianming Xie, Baoju Li
Clubroot ( Plasmodiophora brassicae ) is an important soilborne disease that causes severe damage to cruciferous crops in China. This study aims to compare the differences in chemical properties and microbiomes between healthy and clubroot-diseased soils. To reveal the difference, we measured soil chemical properties and microbial communities by sequencing 18S and 16S rRNA amplicons. The available potassium in the diseased soils was higher than in the healthy soils. The fungal diversity in the healthy soils was significantly higher than in the diseased soils...
January 25, 2024: Microorganisms
https://read.qxmd.com/read/38392810/-streptomyces-spp-strains-as-potential-biological-control-agents-against-verticillium-wilt-of-olive
#10
JOURNAL ARTICLE
Miriam Díaz-Díaz, Begoña I Antón-Domínguez, María Carmen Raya, Alexander Bernal-Cabrera, Ricardo Medina-Marrero, Antonio Trapero, Carlos Agustí-Brisach
Verticillium wilt of olive (VWO) caused by Verticillium dahliae is considered a major olive ( Olea europaea ) disease in Mediterranean-type climate regions. The lack of effective chemical products against VWO makes it necessary to search for alternatives such as biological control. The main goal of this study was to evaluate the effect of six Streptomyces spp. strains as biological control agents (BCAs) against VWO. All of them were molecularly characterized by sequencing 16S or 23S rRNA genes and via phylogenetic analysis...
February 8, 2024: Journal of Fungi (Basel, Switzerland)
https://read.qxmd.com/read/38376639/evaluation-of-bacillus-isolates-as-a-biological-control-agents-against-soilborne-phytopathogenic-fungi
#11
JOURNAL ARTICLE
Derya Maral-Gül, Rengin Eltem
Pesticides, used in agriculture to control plant diseases, pose risks to the environment and human health. To address this, there's a growing focus on biocontrol, using microorganisms instead of chemicals. In this study, we aimed to identify Bacillus isolates as potential biological control agents. We tested 1574 Bacillus isolates for antifungal effects against pathogens like Botrytis cinerea, Fusarium solani, and Rhizoctonia solani. Out of these, 77 isolates formed inhibition zones against all three pathogens...
February 20, 2024: International Microbiology: the Official Journal of the Spanish Society for Microbiology
https://read.qxmd.com/read/38350163/sustainable-cultivation-of-melon-landraces-effects-of-grafting-on-the-accumulation-of-flavor-related-compounds
#12
JOURNAL ARTICLE
A Flores-León, R Martí, M Valcarcel, S Roselló, J Beltrán, S García-Martínez, J J Ruiz, C Gisbert, J Cebolla-Cornejo, B Picó
Melon landraces are highly appreciated by consumers who pay price premiums to compensate for lower yields, enabling on-farm conservation. However, they are highly susceptible to soilborne diseases. This study analyses the impact of Cucurbita and Cucumis rootstocks on the accumulation of flavor-related metabolites in Spanish landraces of the Ibericus melon group, as a strategy to promote their sustainable cultivation. Scion genotype was the main factor conditioning the accumulation of sugars and acids both under standard and saline organic farming conditions...
February 12, 2024: Food Chemistry
https://read.qxmd.com/read/38349678/endophytic-streptomyces-sp-neau-dd186-from-moss-with-broad-spectrum-antimicrobial-activity-biocontrol-potential-against-soilborne-diseases-and-bioactive-components
#13
JOURNAL ARTICLE
Congting Gao, Zhiyan Wang, Chengqin Wang, Jingquan Yang, Rui Du, Hui Bing, Wensheng Xiang, Xiangjing Wang, Chongxi Liu
Soilborne diseases cause significant economic losses in agricultural production around the world. They are difficult to control because a host plant is invaded by multiple pathogens, and chemical control often does not work well. In this study, we isolated and identified an endophytic Streptomyces sp. NEAU-DD186 from moss, which showed broad-spectrum antifungal activity against 17 soilborne phytopathogenic fungi, with Bipolaris sorokiniana being the most prominent. The strain also exhibited strong antibacterial activity against soilborne phytopathogenic bacteria Ralstonia solanacearum ...
February 13, 2024: Phytopathology
https://read.qxmd.com/read/38337919/onion-fusarium-basal-rot-disease-control-by-arbuscular-mycorrhizal-fungi-and-trichoderma-harzianum
#14
JOURNAL ARTICLE
Abdulaziz Yağmur, Semra Demir, Sirel Canpolat, Younes Rezaee Danesh, Beatrice Farda, Rihab Djebaili, Loretta Pace, Marika Pellegrini
Soilborne pathogens reduce 60% of the yield of onion crops. A common fungal pathogen causing wilt disease and severe losses is Fusarium basal rot (FBR). In this study, the combination of Arbuscular Mycorrhizal Fungi (AMF) with Trichoderma harzianum was investigated against FBR. Onion samples were collected from the Ankara-Polatlı region. Among the isolates, isolate S6 was identified as F. oxysporum f. sp. cepae (FOC) using morphological and molecular methods and pathogenicity tests. Different combinations of AMF ( Funneliformis mosseae pure strain and the commercial AMF) and T...
January 28, 2024: Plants (Basel, Switzerland)
https://read.qxmd.com/read/38280370/ralstonia-solanacearum-differentially-modulates-soil-physicochemical-properties-and-rhizospheric-bacteriome-of-resistant-and-susceptible-tobacco-cultivars
#15
JOURNAL ARTICLE
Waqar Ahmed, Zhenlin Dai, Jinhao Zhang, Qaiser Shakeel, Md Kamaruzzaman, Shaista Nosheen, Mohamed Mohany, Ayesha Ahmed, Shujing Cai, Yan Wang, Yongfeng Gao, Munir Ahmad, Shahzad Munir, Xinrong Wang
Ralstonia solanacearum is a devastating soilborne pathogen which poses significant yield and economic losses to tobacco production globally. The impact of R. solanacearum on rhizosphere bacteriome and soil physicochemical characteristics in resistant and susceptible tobacco cultivars is poorly understood. This study aims to determine the effect of R. solanacearum on soil physicochemical parameters and rhizosphere bacteriome of resistant (K326) and susceptible (Hongda) tobacco cultivars at various growth stages...
January 10, 2024: Microbiological Research
https://read.qxmd.com/read/38277652/anaerobic-soil-disinfestation-and-vermicompost-to-manage-bottom-rot-in-organic-lettuce
#16
JOURNAL ARTICLE
Deborah A Neher, Anna R Brown, Tucker D Andrews, Thomas R Weicht
Rhizoctonia solani Kühn (teleomorph: Thanatephorus cucumeris [Frank] Donk) is an aggressive soilborne pathogen with a wide host range, survives saprophytically between crops presenting a challenge for organic vegetable farmers that lack effective management tools. A two-year field experiment was conducted at two organic farms to compare anaerobic soil disinfestation (ASD) and worm-cured compost (vermicompost) to manage bottom rot caused by R. solani subspecies AG1-IB in field-grown organic lettuce ( Lactuca sativa )...
January 26, 2024: Plant Disease
https://read.qxmd.com/read/38264459/-meloidogyne-enterolobii-induced-changes-in-guava-root-exudates-are-associated-with-root-rotting-caused-by-neocosmospora-falciformis
#17
JOURNAL ARTICLE
Ricardo M Souza, Denilson F Oliveira, Vicente M Gomes, Abraão J S Viana, Geraldo H Silva, Alan R T Machado
Despite the worldwide importance of disease complexes involving root-feeding nematodes and soilborne fungi, there have been few in-depth studies on how these organisms interact at the molecular level. Previous studies of guava decline have shown that root exudates from Meloidogyne enterolobii -parasitized guava plants (NP plants), but not from nematode-free plants (NF plants), enable the fungus Neocosmospora falciformis to rot guava roots, leading to plant death. To further characterize this interaction, NP and NF root exudates were lyophilized; extracted with distinct solvents; quantified regarding amino acids, soluble carbohydrates, sucrose, phenols, and alkaloids; and submitted to a bioassay to determine their ability to enable N...
February 2023: Journal of Nematology
https://read.qxmd.com/read/38170665/mitigating-emerging-and-re-emerging-diseases-of-fruit-and-vegetable-crops-in-a-changing-climate
#18
JOURNAL ARTICLE
Sally A Miller, Anna Louise Testen, Jonathan Jacobs, Melanie Lewis Ivey
Fruit and vegetable crops are important sources of nutrition and income globally. Producing these high value crops requires significant investment of often scarce resources, and therefore the risks associated with climate change and accompanying disease pressures are especially important. Climate change influences the occurrence and pressure of plant diseases, enabling new pathogens to emerge and old enemies to re-emerge. Specific environmental changes attributed to climate change, particularly temperature fluctuations and intense rainfall events, greatly alter fruit and vegetable disease incidence and severity...
January 3, 2024: Phytopathology
https://read.qxmd.com/read/38170446/variation-in-pathogenicity-and-subsequent-production-of-sclerotia-of-sclerotinia-sclerotiorum-isolates-in-different-cover-crops-flower-strips-and-weeds
#19
JOURNAL ARTICLE
Nazanin Zamani-Noor, Sinja Brand, Faria Noshin, Hans-Peter Söchting
Cover crops and flower strips are used in agricultural fields as part of integrated pest management strategies. However, their potential as secondary hosts of soilborne pathogens such as Sclerotinia sclerotiorum in oilseed rape cultivation is not fully comprehended. In the current study, we evaluated the effect of pathogen virulence on the development of Sclerotinia stem/leaf rot and sclerotia production in 33 plant species from 11 botanical families using two S. sclerotiorum isolates. Furthermore, the effect of sclerotial size on carpogenic germination was studied...
January 3, 2024: Plant Disease
https://read.qxmd.com/read/38132566/genome-sequence-of-a-novel-phlebovirus-associated-with-lettuce-big-vein-disease-infecting-lettuce-lactuca-spp
#20
JOURNAL ARTICLE
Willem E W Schravesande, Peter de Heer, Adriaan Verhage, Harrold A van den Burg
Lettuce big vein disease is a disease complex involving at least two RNA viruses, both transmitted by the soilborne fungus Olpidium virulentus . Here, we present the genomic sequence of a novel unrelated third negative-stranded RNA virus, belonging to the family Phenuiviridae , recovered from infected lettuce plants.
December 22, 2023: Microbiology Resource Announcements
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