A thermophile-fermented compost-mediated reduction in root galling by nematode

2014 Fiscal Year Final Research Report

• Project/Area Number: 25660275
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Environmental agriculture(including landscape science)
• Research Institution: Chiba University
• Principal Investigator: KODAMA Hiroaki 千葉大学, 融合科学研究科(研究院), 教授 (70302536)
• Research Collaborator: MIYAMOTO Hirokuni 日環科学株式会社
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: コンポスト / ネコブセンチュウ / エンドファイト

Outline of Final Research Achievements

Root galling by root-knot nematode was investigated after addition of a compost that had been made by fermentation of marine animals. Root galling was inhibited when the compost-extract was added to the root-knot nematode-infected plants. However, the bacterium-free filtrate of the compost extract did not interfere with root galling by nematode. The combination of an organophosphorus nematicide with a compost effectively reduced the soil nematode under the greenhouse condition. The endophytic bacteria were isolated from the compost-treated plants. These endophytic bacteria were Paenibacillus spp. and were different from Paenibacillus polymyxa that had been reported to induce mortality of nematode. The role of these isolated Paenibacillus on the inhibition of root galling remained to be clarified.

Free Research Field

植物細胞分子生物学