The Sheath Brown Rot Disease of Rice Plant and Its Causal Bacterium, Pseudomonas fuscovaginae A. Tanii, K. Miyajima et T. Akita sp. nov.

Tanii, A.; Miyajima, Kuniyuki; Akita, Tadahiko

doi:10.3186/jjphytopath.42.540

Cited by 35 publications

(25 citation statements)

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“…2). This findings confirmed that the plants were infected by P. fuscovaginae because all disease symptoms observed were similiar to the symptom descriptions reported by earlier researches such as Tanii et al (1976), and Zeigler and Alvarez (1987a). Indeed, the same disease symptoms were also observed when the P. fuscovaginae infected wheat crop .…”

Section: Disease Symptoms Distribution Incidence and Severitysupporting

confidence: 79%

“…In 1976, a new disease of rice namely sheath brown rot was detected and rated as the most important bacterial disease of rice in Hokkaido, Japan (Tanii et al 1976). A number of reports on the new disease from other parts of the world i.e.…”

Section: Introductionmentioning

confidence: 99%

“…Pseudomonas marginalis (Pseudomonas fluorescens biovar II) was reported to be the causal agent of the disease. However, after more detailed studies, the bacterium was reidentified as a new species and was given a new name of P. fuscovaginae (Tanii et al 1976).…”

Section: Introductionmentioning

confidence: 99%

“…At the later stages of infection, the whole leaf sheath becomes necrotic. Grains produced by infected panicles are discoloured, malformed and empty (Tanii et al 1976;Webster and Gunnell 1992;Cottyn et al 1994). Yield losses as high as 72.2% due to the disease were reported in Indonesia (Cahyaniati and Mortensen 1997).…”

Section: Introductionmentioning

confidence: 99%

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Sheath Brown Rot Disease of Rice Caused by Pseudomonas Fuscovaginae in the Peninsular Malaysia

Razak

Zainudin²,

Sidiqe³

et al. 2009

Journal of Plant Protection Research

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Abstract:Relative to the established and well known rice diseases, sheath brown rot caused by Pseudomonas fuscovaginae can be considered new but getting widespread and serious all over the world. Our research was aimed to monitor and quantify the incidence and importance of the disease in Malaysia. A series of field monitoring and sampling were conducted to quantify the incidence and severity of the disease. Laboratory analysis of the collected diseased plant was done to identify the causal organism. Disease resistance screening of selected rice cultivars were also conducted to overcome the problem. The disease was found to become more important, prevalent and widely spread throughout rice growing areas in Peninsular Malaysia. Infected plants in the field became yellowish, lower leaf sheaths turned light or dark brown, while grains produced by an infected plant were discoloured, malformed and empty.The highest disease incidence was recorded in the state of Pahang (62%) and Selangor (62%), while the most severe infection was recorded in Pahang (55%) and Terengganu (61%). The evaluations of varietal resistance evaluation showed that the pathogen naturally infected all tested rice varieties at different levels of infection. Several rice varieties i.e. MR240, MR243, MR244, MR245, MR246, MR248 and MR249, classified as moderately resistant to the disease, could be recommended for planting in the next planting season.

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Section: Disease Symptoms Distribution Incidence and Severitysupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sheath Brown Rot Disease of Rice Caused by Pseudomonas Fuscovaginae in the Peninsular Malaysia

Razak

Zainudin²,

Sidiqe³

et al. 2009

Journal of Plant Protection Research

View full text Add to dashboard Cite

show abstract

“…seudomonas fuscovaginae is a Gram-negative fluorescent pseudomonad first identified and reported as a pathogen of rice (Oryza sativa) in Japan in 1976 (11). Its symptoms on rice plants are the appearance of brown-black, water-soaked spots on the adaxial side of the flag leaf sheath, with grain discoloration, poor spike emergence, and sterility in severe cases (12).…”

mentioning

confidence: 99%