Analysis of phytohormones and phosphate solubilization in Photorhabdus spp.

被引：0
|
作者：
Ihsan Ullah
Abdur Rahim Khan
Gun-Seok Park
Jong-Hui Lim
Muhammad Waqas
In-Jung Lee
Jae-Ho Shin
机构：
[1] Kyungpook National University,School of Applied Sciences
来源：
Food Science and Biotechnology | 2013年 / 22卷
关键词：
insecticidal bacteria; M1021; TT01; GCMS;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Bacteria of the genus Photorhabdus are nematodes (Heterorhabditidae) symbiont and highly entomopathogenic in nature. Present study was concerned to investigate the effects of Photorhabdus temperata M1021 and Photorhabdus luminescens TT01 on plant morphology and physiology (‘Dongjin-beyo’ and ‘waitoc’). A significant (p<0.05) increase in the plant growth attributes including total plant length, root length, biomass, and chlorophyll contents were observed after treatment with culture extracts. Moreover indole-3-acetic acid (IAA) production by respective bacteria was confirmed by GCMS analysis. IAA production through tryptophan independent pathway was confirmed in P. temperata M1021 and P. luminescens TT01. Phosphate solubilization capability was also investigated by growing them on pikovskaya (PVK) agar as well as on PVK liquid medium with pH 7 at 28±2°C for 14 days. IAA production and phosphate solubilization capability of these bacteria could be the potential factors for plant growth promotion.
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页码：25 / 31
页数：6
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