Screening of Growth-Promoting Strains for Areca Palm  

作　　者：Dejie YANG Yenan WANG Zhaowei LIN Xiaoqing NIU 

机构地区：[1]Coconut Research Institute,Chinese Academy of Tropical Agricultural Sciences/Hainan Engineering Research Center of Arecanut Industry,Wenchang 571339,China

出　　处：《Plant Diseases and Pests》2024年第5期1-4,共4页植物病虫害研究（英文）

基　　金：Supported by Specific Research Fund of the Innovation Platform for Academicians of Hainan Province(YSPTZX202151).

摘　　要：[Objectives]The paper was to identify growth-promoting strains within the culturable bacterial flora of areca palm.[Methods]Culturable bacteria were isolated and identified from areca palm using samples obtained from both healthy and yellowing disease-affected plants within the same orchard.Strains that exhibited significant differences between healthy and affected samples,or that were unique to the healthy samples,were subsequently screened for their growth-promoting effects.[Results]Three bacterial strains demonstrated robust and consistent capacity for auxin production,specifically Paenibacillus,Pseudomonas aeruginosa,and Bacillus amyloliquefaciens,each yielding approximately 50μg of IAA per mL of bacterial solution.The strain Alcaligenes faecalis exhibited the highest efficacy in siderophore production,achieving 21.15%of active units.Additionally,A.faecalis,Bacillus velezensis,and P.aeruginosa were noted for their potassium-solubilizing capabilities,as evidenced by the presence of distinct potassium-solubilizing zones.[Conclusions]The evaluation of the aforementioned growth-promoting strains may offer valuable insights for the development of growth-promoting strains specifically for areca palm.

关 键 词：Areca palm Yellow leaf disease Auxin production Siderophore production Potassium-solubilizing 

分 类 号：S43[农业科学—农业昆虫与害虫防治]