Effects of phytase transgenic corn planting on soil nematode community

• Published in: Ying yong sheng tai xue bao Vol. 25; no. 4; p. 1107
• Main Authors: Zhao, Zong-Chao, Su, Ying, Mou, Wen-Ya, Liu, Man-Qiang, Chen, Xiao-Yun, Chen, Fa-Jun
• Format: Journal Article
• Language: Chinese
• Published: China 01.04.2014
• Subjects: 6-Phytase; Animals; China; Ecosystem; Nematoda - physiology; Nitrogen; Plants, Genetically Modified - growth & development; Soil; Zea mays - genetics; Zea mays - growth & development
• ISSN: 1001-9332

A healthy soil ecosystem is essential for nutrient cycling and energy conversion, and the impact of exogenous genes from genetically modified crops had aroused wide concerns. Phytase transgenic corn (i. e., the inbred line BVLA430101) was issued a bio-safety certificate on 27 September 2009 in China, which could improve the efficiency of feed utilization, reduce environmental pollution caused by animal manure. In this study, the abundance of trophic groups, community structure and ecological indices of soil nematodes were studied over the growing cycle of phytase transgenic corn (ab. transgenic corn) and control conventional parental corn (ab. control corn) in the field. Totally 29 and 26 nematode genera were isolated from transgenic corn and control corn fields, respectively. The abundances of bacterivores and omnivores-predators, the total number of soil nematodes, and the Shannon index (H) were significantly greater under transgenic corn than under control corn, while the opposite trend was found for the r