哥伦比亚螺旋线虫的寄主植物、分布及生态关联

Host plants, distribution, and ecological association of Hoplolaimus columbus.

作者信息

Lewis S A, Smith F H

出版信息

J Nematol. 1976 Jul;8(3):264-70.

PMID:19308233

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2620182/

Abstract

Selected species and cultivars of plants were evaluated for host suitability for Hoplolaimus columbus under greenhouse and fieht conditions. Sixteen agronomic plant cultivars were assayed for infection and reproduction after 2-6 months. Lima bean, soybean, cotton, and sweet corn were most favorable for nematode reproduction, whereas sweet potato was a nonhost plant. Field corn and watermelon, which tolerated H. columbus without significant yield losses, are suited for alternative crops in the southern coastal plain. Populations of H. columbus occurred in 15% of soyhean and 25% of cotton soil samples assayed. Population levels of H. columbus and Helicotylenchus spp. were correlated with fluctuations in various soil nutrient factors, whereas Meloidogyne spp. and Scutellonema spp. were not. No correlation was detected between the presence of H. columbus and populations of other nematode genera stndied.

摘要

在温室和田间条件下，对选定的植物物种和品种进行了对哥伦比亚螺旋线虫宿主适宜性的评估。在2至6个月后，对16个农艺植物品种进行了感染和繁殖测定。利马豆、大豆、棉花和甜玉米最有利于线虫繁殖，而甘薯是非寄主植物。田间玉米和西瓜能够耐受哥伦比亚螺旋线虫且产量损失不显著，适合作为南部沿海平原的替代作物。在所检测的大豆土壤样本中，15%发现了哥伦比亚螺旋线虫种群，棉花土壤样本中这一比例为25%。哥伦比亚螺旋线虫和螺旋线虫属的种群数量与各种土壤养分因子的波动相关，而根结线虫属和盾线虫属则不然。在所研究的其他线虫属种群与哥伦比亚螺旋线虫的存在之间未检测到相关性。