نتایج جستجو برای: ralstonia
تعداد نتایج: 2274 فیلتر نتایج به سال:
Ralstonia solanacearum and R. pseudosolanacearum are well known primary pathogens of herbaceous crops. Reports of wilt caused by these pathogens in tree species are limited other than on Eucalyptus species. Despite the widespread occurrence of so-called bacterial wilt on eucalypts in tropical and sub-tropical parts of Africa, Asia, and the Americas, there remain many contradictions relating to ...
Parasites and competitors suppress bacterial pathogen synergistically due to evolutionary trade‐offs
Parasites and competitors are important for regulating pathogen densities and subsequent disease dynamics. It is, however, unclear to what extent this is driven by ecological and evolutionary processes. Here, we used experimental evolution to study the eco-evolutionary feedbacks among Ralstonia solanacearum bacterial pathogen, Ralstonia-specific phage parasite, and Bacillus amyloliquefaciens co...
Mathews L. Paret, Department of Plant and Environmental Protection Sciences (PEPS), University of Hawaii at Manoa, Honolulu 96822; Roxana Cabos, United States Department of Agriculture, Agricultural Research Service, Pacific Basin Agricultural Research Center, Hilo, HI 96720; B. A. Kratky, Department of Tropical Plant and Soil Sciences, University of Hawaii at Manoa; and Anne M. Alvarez, PEPS, ...
Ralstonia solanacearumstrain Rs-T02 was originally isolated from a bacterial wilt of tomato plant in Nanning City of Guangxi Province, China. It represents the most prevalent phylotype in Guangxi. Here, we present the draft genome sequence of this strain, which comprises 5,225 genes and 5,976,011 nucleotides with an average G+C content of 66.79%. There are 968 different genes between this isola...
Ralstonia solanacearum is a widespread and destructive plant pathogen. We present the genome of the type strain, K60 (phylotype IIA, sequevar 7). Sequevar 7 strains cause ongoing tomato bacterial wilt outbreaks in the southeastern United States. K60 generally resembles R. solanacearum CFBP2957, a Caribbean tomato isolate, but has almost 360 unique genes.
spp. is a major pathogenic microbe for tomato, which Background: Ralstonia invades the roots of diverse plant hosts and colonizes xylem vessels causing wilt, especially in tropical, subtropical and warm-temperate regions. Ralstonia spp. produces several virulence factors helping it to invade the plant’s natural defense mechanism. Native isolates of Trichoderma spp., Pseudomonas and can be used ...
Ralstonia solanacearum strain FQY_4 was isolated from a bacterial wilt nursery, which is used for breeding crops for Ralstonia resistance in China. Here, we report the complete genome sequence of FQY_4 and its comparison with other published R. solanacearum genomes, especially with the strains GMI1000 and Y45 in the same group.
The genetic and phenotypic diversity of the Ralstonia solanacearum species complex, which causes bacterial wilt to Solanacae, was assessed in 140 strains sampled from the main vegetable production areas of the Mayotte island. Only phylotype I strains were identified in the five surveyed areas. The strains were distributed into the following 4 sequevars: I-31 (85.7%), I-18 (5.0%), I-15 (5.7%), a...
Ralstonia solanacearum is one of the most devastating bacterial plant pathogens due to its large host range, worldwide geographic distribution and persistence in fields. This soilborne pathogen is the causal agent of bacterial wilt and it can infect major agricultural crops thereby reducing significantly their yield. To favor infection, the bacterium delivers, through the type three secretion s...
Several breeding programs are under way to introduce resistance to bacterial wilt caused by Ralstonia solanacearum in solanaceous crops. The lack of screening methods allowing easy measurement of pathogen colonization and the inability to detect latent (i.e., symptomless) infections are major limitations when evaluating resistance to this disease in plant germplasm. We describe a new method to ...
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