生态与农村环境学报2018，Vol.34Issue(6)：541-546,6.DOI:10.11934/j.issn.1673-4831.2018.06.009
抗旱和耐盐碱转基因棉花对土壤线虫群落的影响
Effects of Cultivation of Drought-Resistance and Salt-Tolerance Transgenic Cotton on Soil Nematode Community.
摘要
Abstract
Being an important indicator of soil quality, soil nematode has been set as one of the critical indices for envi-ronmental safety assessment of transgenic crops. During the period of 2014-2015, a field experiment was conducted on effects of drought-resistance transgenic cotton 013011 and salt-tolerance transgenic cotton 013018 on soil nematode commu-nity structure. At the end of the experiment, a total of 34 genera of soil nematodes were detected and identified to be 13 genera of bacteria-feeding nematodes, 3 genera of fungi-feeding nematodes, 9 genera of predatory nematodes and 9 genera of herbivorous nematodes, among which Cephalobus, Eucephalobus and Helicotylenchus were dominant ones. Compared with CK planted with corresponding non-transgenic cotton, all the treatments did not vary much in all ecological indices and trophic groups, except in the treatment planted with 013011 where the abundance of soil nematodes dropped drastically, but the abundance of bacteria-feeding ones increased significantly (P＜0. 05). And in the treatment planted with 013018, the abundance of soil nematodes, bacteria-feeding nematodes and predatory nematodes exhibited significant difference or extremely significant difference from those in CK relative to sampling time. The treatment planted with 013011 also differed significantly or ultra-significantly from the CK planted with TH2, a corresponding non-transgenic cotton in soil nematodes thoroughfare index, maturity index and herbivorous nematodes index relative to sampling time. The comparisons between the treatments planted with 013011 and 013018 and their CKs show that Mesorhabditis and Thornia varied significantly in relative abundance, while dominant genera of soil nematodes did not.关键词
抗旱转基因棉花/耐盐碱转基因棉花/土壤线虫/多样性/群落结构Key words
drought-resistance transgenic cotton/salt-tolerance transgenic cotton/soil nematode/diversity/community structure分类
农业科技引用本文复制引用
郭佳惠,李刚,赵建宁,杨殿林,闫凤鸣,修伟明..抗旱和耐盐碱转基因棉花对土壤线虫群落的影响[J].生态与农村环境学报,2018,34(6):541-546,6.基金项目
转基因生物新品种培育重大专项(2016ZX08012-005) （2016ZX08012-005）
国家自然科学基金(31200424) （31200424）
