栖息在选定阔叶杂草种子上的细菌的身份和特性。

Identity and properties of bacteria inhabiting seeds of selected broadleaf weed species.

机构信息

U.S. Department of Agriculture, Agricultural Research Service and Department of Agronomy, University of Missouri, 65211, Columbia, Missouri, USA.

出版信息

Microb Ecol. 1987 Jul;14(1):29-37. doi: 10.1007/BF02011568.

DOI:10.1007/BF02011568

PMID:24202604

Abstract

Seeds of five weed species were examined for the presence of seedborne bacteria. A total of 459 isolates were obtained from 1,740 seeds. The bacteria were identified and examined for distribution among seed viability classes, antifungal activity, and potential phytopathogenicity. Weed seeds varied for the prevalence of bacteria and in the types of bacteria associated with each plant species. Antifungal activity exhibited by 80% of the bacteria may limit seed deterioration by potential fungal seed pathogens. Some of the seedborne bacteria (15%) were potentially phytopathogenic. It is suggested that the complex nature of the weed seed-bacteria associations may be an obstacle to the development of biotic agents for manipulating weed seed activity in soil.

摘要

对五种杂草种子中是否存在种子携带细菌进行了检测。从 1740 颗种子中共获得了 459 个分离株。对这些细菌进行了鉴定，并研究了它们在种子活力等级、抗真菌活性和潜在植物病原性方面的分布。杂草种子的细菌流行率和与每种植物相关的细菌类型存在差异。80%的细菌具有抗真菌活性，这可能会限制潜在真菌种子病原体对种子劣变的影响。部分种子携带的细菌（15%）可能具有潜在的植物病原性。建议，杂草种子与细菌的复杂关系可能会成为开发生物制剂以控制土壤中杂草种子活性的障碍。