Lactic acid bacteria (LAB) as plant growth promoting bacteria (PGPB) for the control of wilt of tomato caused by Ralstonia solanacearum
Lactic acid bacteria (LAB) as plant growth promoting bacteria (PGPB) for the control of wilt of tomato caused by Ralstonia solanacearum
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乳酸菌（LAB）作为植物生长促进菌（PGPB）用于控制由青枯菌引起的番茄枯萎病
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
C. Srinivas
中科院分区：
文献类型：
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作者：
K. Murthy;M. Malini;J. Savitha;C. Srinivas
青枯病是番茄生产上的主要病害之一。研究了乳酸菌对番茄枯萎病的抑制作用及其作为植物生长促进菌的作用。R.在氯化三苯基四氮唑（TZC）培养基上，从感病番茄植株及其土壤样品中分离到一株茄病镰刀菌。在离体筛选中，有两株乳酸菌对青枯病菌表现出最强的抑制作用。用乳酸菌处理种子显著提高了种子的发芽质量和幼苗活力。在绿色温室条件下，评价了两种菌株在抑制感病番茄植物品种的青枯病发病率和促进植物生长方面的效力。用种子处理和土壤灌苗方法培育的植株，发病率显著降低，降低了约63%。本工作证明了乳酸菌作为植物生长促进菌和生防剂对红曲霉的作用。体内青枯菌
Bacterial wilt caused by Ralstonia solanacerum is one of the production constraints of tomato (Lycopersicon esculentum Mill). A study was conducted to evaluate the potential of Lactic acid Bacteria (LAB) to suppress the development of wilt pathogen and their role as Plant Growth Promoting Bacteria (PGPB) in tomato. R. solanacerum was isolated from infected tomato plants and their soil samples on triphenyl tetrazolium chloride (TZC) medium. In the in vitro screening, two LAB strains showed maximum inhibition against wilt pathogen. Seed treatment with LAB strains significantly improved the quality of seed germination and seedling vigour. Efficacy of both the strains were evaluated under green house conditions in suppressing incidence of bacterial wilt disease and promoting plant growth in susceptible tomato plant varieties. The disease incidence was significantly reduced by about 63% in plants raised from seed treatment and soil drench method. The present work demonstrates the ability of LAB to act as plant growth promoting bacteria and biocontrol agent against R. solanacearum in vivo.