First report of foliar blight in Brassica rapa ssp. chinensis caused by Rhizoctonia solani AG‐4

Yang, Genhua; Chen, X. Q.; Chen, H. R.; Naito, Shigeo; Ogoshi, Akira; Zhao, Jingpeng

doi:10.1111/j.0032-0862.2004.00987.x

Cited by 5 publications

(3 citation statements)

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“…The presence of AG 4 has also been reported on Brassica oleracea [21] and B. rapa subsp. chinensis [38] in China, B. oleracea in the UK [23], B. napus L. and B. campestris L. in Canada [39], and B. oleracea [18] and B. napus L. in the US [40]. AG 4-HGI occurred in most regions sampled.…”

Section: Discussionmentioning

confidence: 95%

Cropping Systems and Cultural Practices Determine the Rhizoctonia Anastomosis Groups Associated with Brassica spp. in Vietnam

et al. 2014

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Ninety seven Rhizoctonia isolates were collected from different Brassica species with typical Rhizoctonia symptoms in different provinces of Vietnam. The isolates were identified using staining of nuclei and sequencing of the rDNA-ITS barcoding gene. The majority of the isolates were multinucleate R. solani and four isolates were binucleate Rhizoctonia belonging to anastomosis groups (AGs) AG-A and a new subgroup of A-F that we introduce here as AG-Fc on the basis of differences in rDNA-ITS sequence. The most prevalent multinucleate AG was AG 1-IA (45.4% of isolates), followed by AG 1-ID (17.5%), AG 1-IB (13.4%), AG 4-HGI (12.4%), AG 2-2 (5.2%), AG 7 (1.0%) and an unknown AG related to AG 1-IA and AG 1-IE that we introduce here as AG 1-IG (1.0%) on the basis of differences in rDNA-ITS sequence. AG 1-IA and AG 1-ID have not been reported before on Brassica spp. Pathogenicity tests revealed that isolates from all AGs, except AG-A, induced symptoms on detached leaves of several cabbage species. In in vitro tests on white cabbage and Chinese cabbage, both hosts were severely infected by AG 1-IB, AG 2-2, AG 4-HGI, AG 1-IG and AG-Fc isolates, while under greenhouse conditions, only AG 4-HGI, AG 2-2 and AG-Fc isolates could cause severe disease symptoms. The occurrence of the different AGs seems to be correlated with the cropping systems and cultural practices in different sampling areas suggesting that agricultural practices determine the AGs associated with Brassica plants in Vietnam.

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Section: Discussionmentioning

confidence: 95%

Cropping Systems and Cultural Practices Determine the Rhizoctonia Anastomosis Groups Associated with Brassica spp. in Vietnam

et al. 2014

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“…S. sclerotiorum causes root-rot disease of many species of Brassica [34], but no increase of S. sclerotiorum was detected in any of the treatments, possibly because the fields had been used for continuous barley production. R. solani is a broad-spectrum pathogen that can cause root disease of barley [35] as well as foliar blight of turnip rape [36]. Since the shoot extract still inhibited the growth of R. solani at 9 DAI in vitro, the incorporation of turnip rape was expected to inhibit growth of R. solani in the field.…”

Section: Effect Of Turnip Rape On Soil-borne Pathogensmentioning

confidence: 99%

Fusarium-suppressive effects of green manure of turnip rape

Zou

Tuulos

Mikkonen

et al. 2015

European Journal of Soil Biology

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“…Since De Carolle established Rhizoctonia, people found that the fungi can infect 260 plants of 43 families, such as rice, corn, soy bean, barley, wheat. Rhizoctonia cause the symptom such as plant grain dry and withered and is one of the important pathogen of plant soil borne disease [1][2][3][4][5][6][7][8]. According to the number of nuclei, Rhizoctonia is divided into multinuclia and bionuclia [6,7,9].…”

Section: Introductionmentioning

confidence: 99%

The contribution of binucleate Rhizoctonia AG - V on Phosphorus uptake by plant

Bao¹,

Gao²,

Wei³

et al. 2017

2nd Annual International Conference on Energy, Environmental &Amp; Sustainable Ecosystem Development (EESED 2016)

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Rhizoctonia is a soil-borne fungal pathogen which widely exists in the soil. This study, by comparing the two isolates of the AG-V which are new an stemsons group (AG)(Bs-J-06-7-1 and DL-YT-06-4-9), we find P absorption differences as well as their hyphae in the system P absorption rate interacting with three plants, and clear its specificity with plant interactions. Screening for the effect of hypo toxicity binucleate Rhizoctonias on promoting P absorption of three plants, the result is that there were significant differences on contribution rate of P absorption of fungus when two hypotoxicity Rhizoctonias interacted with corns in 40days, and the comparative results would be Bs-J-06-7-1>DL-YT-06-4-9, that when two hypo toxicity Rhizoctonias interacted with tomatoes in 40days, and the comparative results would be DL-YT-06-4-9> Bs-J-06-7-1, but when two hypo toxicity Rhizoctonias interacted with rapes in 45 days, and the comparative results would be Bs-J-06-7-1>DL-YT-06-4-9. Through comparative analysis of quantity and contribution rate of P absorption of fungus in this study, we found that the interaction of two hypotoxicity binucleate Rhizoctonias with corn, tomato and rape had some positive effect. But effect on P absorption tomatoes is not very obvious.

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First report of foliar blight in Brassica rapa ssp. chinensis caused by Rhizoctonia solani AG‐4

Cited by 5 publications

References 1 publication

Cropping Systems and Cultural Practices Determine the Rhizoctonia Anastomosis Groups Associated with Brassica spp. in Vietnam

Cropping Systems and Cultural Practices Determine the Rhizoctonia Anastomosis Groups Associated with Brassica spp. in Vietnam

Fusarium-suppressive effects of green manure of turnip rape

The contribution of binucleate Rhizoctonia AG - V on Phosphorus uptake by plant

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