松材线虫自然侵染后松树还原糖与矿质营养元素的变化  

Changes of reducing sugar and mineral nutrient elements in Pinus thunbergii and Pinus massoniana at different stage naturally infected by Bursaphelenchus xylophilus

作　　者：黄秀凤 张慧 徐华潮[3] 

机构地区：[1]富阳市林业局,浙江富阳311400 [2]临安市林业局,浙江临安311300 [3]浙江农林大学林业与生物技术学院,浙江临安311300

出　　处：《环境昆虫学报》2013年第1期61-66,共6页Journal of Environmental Entomology

基　　金：国家重点基础研究发展计划项目(2009CB119205)

摘　　要：实验测定了马尾松Pinus massoniana、黑松Pinus thunbergii在松材线虫Bursaphelenchus xylophilus自然侵染状态下针叶内还原糖及矿质营养元素的变化趋势。结果表明,两种松树随病程发展针叶内还原糖及N元素含量均逐渐降低;其余矿质元素含量变化不一。表明由于松材线虫的侵入,破坏了植物的组织结构,影响了寄主的新陈代谢和物质循环,继而影响到对各种元素的吸收、转移及利用。We have analyzed the contents of reducing sugar and mineral nutrient nutrients in Pinus thunbergii and Pinus massoniana at different Pine wilt disease stage naturally infected by the pine wood nematode Bursaphelenchus xylophilus in P. thunbergii and P. massoniana at different Pine Wilt disease stage naturally infected by the pine wood nematode B. xylophilt^s conifers. With disease progression, the contents of reducing sugar and nitrogen element decreased in both lodgepole and red pines. The changes in other minerals were inconsistent between the two types of pines. These results indicated that the structural damage caused by nematode infection significantly compromised metabolism, and affected the absorption, movement and utilization of different nutrients in the host plants.

关 键 词：松材线虫 自然侵染 黑松 马尾松 

分 类 号：S432.1[农业科学—植物病理学]