南京林业大学学报（自然科学版）Issue(3)：83-87,5.DOI:10.3969/j.issn.1000-2006.2014.03.016
水拉恩氏菌JZ-GX1及其诱变菌株对马尾松苗的促生效应
A study on growth promotion effect of Rahnella aquatilis JZ-GX1 and its excellent mutant strains on masson pine seedlings
摘要
Abstract
Rahnella aquatilis JZ-GX1 and its excellent mutant strains are efficient phytate-degrading bacteria. In this study, R. aquatilis JZ-GX1 and its excellent mutant strains JZ-GX1-2 and JZ-GX1-10 were inoculated on masson pine seedlings to study their growth promotion effects. Photosynthetic parameters and chlorophylls content were determined re-spectively, 60, 120 and 180 days after inoculation. Seedling height and ground diameter of masson pine seedling were measured on the 180th days after inoculation. Results showed that compared to CK, JZ-GX1 and JZ-GX1-2 and JZ-GX1-10 had a significant promoting effect on photosynthetic parameters ( Pn,ФPSⅡ) , chlorophyll content, and growth of mas-son pine seedlings, in which the effect of mutant strain JZ-GX1-2 was the best, followed by mutagenesis strain JZ-GX-10 and wild screening strain JZ-GX1. In present study, the strain JZ-GX1 and its mutagenesis strains JZ-GX1-2 and JZ-GX1-10 all showed better growth promotion effect than that of the control, they could be used for further field trial and field afforestation.关键词
水拉恩氏菌JZ-GX1/诱变菌株/马尾松/光合作用/植酸盐降解菌/促生效应Key words
Rahnella aquatilis JZ-GX1/mutagenesis strain/masson pine/photosynthesis/phytate-degrading rhi-zobactena/growth promotion effect分类
农业科技引用本文复制引用
李桂娥,吴小芹..水拉恩氏菌JZ-GX1及其诱变菌株对马尾松苗的促生效应[J].南京林业大学学报（自然科学版）,2014,(3):83-87,5.基金项目
国家林业公益性行业科研专项项目（201004061）；江苏高校优势学科建设工程资助项目 （）
