Effect of Overwintering on Potato Wilt Bacteria Under Sana'a Conditions

2013 ◽  
Vol 1 (1) ◽  
pp. 9-20
Author(s):  
M. A. Al-Gaboobi ◽  
M. Tijane , M. Bouksaim
Keyword(s):  
Potato Wilt

scholarly journals Approving the biocontrol method of potato wilt caused by Ralstonia solanacearum (Smith) using Enterobacter cloacae PS14 and Trichoderma asperellum T34

2020 ◽  
Vol 30 (1) ◽  
Author(s):  
Bereika F. F. Mohamed ◽  
Nashwa M. A. Sallam ◽  
Saad A. M. Alamri ◽  
Kamal A. M. Abo-Elyousr ◽  
Yasser S. Mostafa ◽  
...  
Keyword(s):  
Ralstonia Solanacearum ◽  
Enterobacter Cloacae ◽  
Trichoderma Asperellum ◽  
Potato Wilt

A potato wilt disease in South Africa caused by Erwinia carotovora subspecies carotovora and E. chrysanthemi

1991 ◽  
Vol 40 (3) ◽  
pp. 382-386 ◽  
Author(s):  
S. SERFONTEIN ◽  
C. LOGAN ◽  
A. E. SWANEPOEL ◽  
B. H. BOELEMA ◽  
D. J. THERON
Keyword(s):  
South Africa ◽  
Erwinia Carotovora ◽  
Wilt Disease ◽  
Potato Wilt

scholarly journals Characteristics of Ralstonia solanacearum Strains of Potato Wilt Disease from Nepal and Thailand

1970 ◽  
pp. 42-47 ◽  
Author(s):  
Shambhu P Dhital ◽  
Nanda Thaveechai ◽  
Sundar K Shrestha
Keyword(s):  
Bacterial Wilt ◽  
Ralstonia Solanacearum ◽  
Hypersensitive Reaction ◽  
Wilt Disease ◽  
Pathogenicity Test ◽  
Serological Tests ◽  
Bacterial Wilt Disease ◽  
Research Journal ◽  
Limited Host Range ◽  
Potato Wilt

Characterization of strains of Ralstonia solanacearum, the causal agent of potato bacterial wilt disease from Nepal and Thailand was performed based on pathogenicity, biochemical/physiological and serological tests. Fifteen R. solanacearum strains isolated from wilt infected potato plants and tubers grown in Nepal were characterized as race 3, biovar II based on the pathogenicity on different host plants, hypersensitive reaction on tobacco leaf and utilization of some sugars. Results of pathogenicity test show that all strains from Nepal had limited host range. Degree of virulence of all strains varied from high to medium in potato and tomato and medium to low in eggplant. They did not cause wilting in tobacco, pepper and peanut plants. Six strains from Thailand were characterized as biovar II and III. Additionally, comparisons on the physiological, biological and serological characters of seven strains from Nepal and six from Thailand revealed similar characters. Race 3 and biovar II of the pathogen was widely spread over potato growing areas of mid and high hills of Nepal. Both biovars II and III were prevalent in the potato growing areas of Thailand but biovar III was the most dominating one.Key words: Bacterial wilt; Potato; Pseudomonas solanacearum; Ralstonia solanacearumDOI: http://dx.doi.org/10.3126/narj.v4i0.4868Nepal Agriculture Research Journal Vol. 4&5, 2001/2002Page: 42-47Uploaded date: 9 June, 2011

Survey for potato wilt in Pennsylvania and Southern New York

1924 ◽  
Vol 1 (11) ◽  
pp. 243-244
Author(s):  
Freeman Weiss
Keyword(s):  
New York ◽  
Potato Wilt

scholarly journals On the potato wilt disease

1949 ◽  
Vol 13 (3-4) ◽  
pp. 3-6 ◽  
Author(s):  
Yoshihiro HOSHINO
Keyword(s):  
Wilt Disease ◽  
Potato Wilt

scholarly journals Role of Trehalose Synthesis in Ralstonia syzygii subsp. indonesiensis PW1001 in Inducing Hypersensitive Response on Eggplant (Solanum melongena cv. Senryo-nigou)

2021 ◽  
Vol 37 (6) ◽  
pp. 566-579
Author(s):  
Nur Laili ◽  
Takafumi Mukaihara ◽  
Hidenori Matsui ◽  
Mikihiro Yamamoto ◽  
Yoshiteru Noutoshi ◽  
...  
Keyword(s):  
Stress Tolerance ◽  
Hypersensitive Response ◽  
Ralstonia Solanacearum ◽  
Solanum Melongena ◽  
Ion Leakage ◽  
Solanum Torvum ◽  
Osmotic Stress Tolerance ◽  
Mutant Strains ◽  
Potato Wilt ◽  
Trehalose Synthesis

Ralstonia syzygii subsp. indonesiensis (Rsi, former name: Ralstonia solanacearum phylotype IV) PW1001, a causal agent of potato wilt disease, induces hypersensitive response (HR) on its non-host eggplant (Solanum melongena cv. Senryo-nigou). The disaccharide trehalose is involved in abiotic and biotic stress tolerance in many organisms. We found that trehalose is required for eliciting HR on eggplant by plant pathogen Rsi PW1001. In R. solanacearum, it is known that the OtsA/OtsB pathway is the dominant trehalose synthesis pathway, and otsA and otsB encode trehalose-6-phosphate (T6P) synthase and T6P phosphatase, respectively. We generated otsA and otsB mutant strains and found that these mutant strains reduced the bacterial trehalose concentration and HR induction on eggplant leaves compared to wild-type. Trehalose functions intracellularly in Rsi PW1001 because addition of exogenous trehalose did not affect the HR level and ion leakage. Requirement of trehalose in HR induction is not common in R. solanacearum species complex because mutation of otsA in Ralstonia pseudosolanacearum (former name: Ralstonia solanacearum phylotype I) RS1002 did not affect HR on the leaves of its non-host tobacco and wild eggplant Solanum torvum. Further, we also found that each otsA and otsB mutant had reduced ability to grow in a medium containing NaCl and sucrose, indicating that trehalose also has an important role in osmotic stress tolerance.

Вредоносность патокомплекса Fusarium – Alternaria в посадках картофеля

2019 ◽  
Author(s):  
E.S. Prikhodko ◽  
A.N. Smirnov
Keyword(s):  
Yield Loss ◽  
Meteorological Conditions ◽  
Potato Yield ◽  
Protective Measures ◽  
Potato Disease ◽  
Potato Wilt

Статья посвящена описанию особо опасной болезни картофеля сопряженному трахеомикозному увяданию, вызываемому патокомплексом грибов родов Fusarium и Alternaria на фоне контрастных метеоусловий: обильные осадки (две декады) и засушливые условия (две декады). Заболевание ведет к критическим потерям урожая картофеля. Защитные мероприятия против данного заболевания картофеля должны сочетать нормированное орошение при установлении засушливой погоды не менее 710 суток с применением смесей биопрепаратов и органоминеральных удобрений.The paper is devoted to very dangerous potato disease combined potato wilt caused with pathocomplex of fungi from genera Fusarium and Alternaria on the base of contrasted meteorological conditions: strong rains (during two decades) and dried conditions (during also two decades). The disease leads to crucial potato yield loss. Protective measures against this disease should include scheduled irrigation at dried weather not less than for 710 days with application of mixtures of biopreparations and organic mineralized fertilizers.

Pathogen identification of sweet potato wilt in Bình Tân, Vĩnh Long

2019 ◽  
Vol Vol.11(3) ◽  
pp. 36
Author(s):  
Sang, N.H.M. ◽  
Khoa, N.D. ◽  
Tin, C.H.T.
Keyword(s):  
Sweet Potato ◽  
Pathogen Identification ◽  
Potato Wilt

Study on antagonistic effects of Talaromyces flavus on Verticillium albo-atrum, the causal agent of potato wilt disease

2010 ◽  
Vol 29 (7) ◽  
pp. 658-662 ◽  
Author(s):  
Laleh Naraghi ◽  
Asghar Heydari ◽  
Saeed Rezaee ◽  
Mohammad Razavi ◽  
Hanieh Jahanifar
Keyword(s):  
Wilt Disease ◽  
Causal Agent ◽  
Antagonistic Effects ◽  
Talaromyces Flavus ◽  
Potato Wilt ◽  
Verticillium Albo Atrum
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