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¡¶±±·½Ô°ÒÕ¡·[ISSN:1001-0009/CN:23-1247/S]

Issue:

2018Äê14

Page:

91-97

Research Field:

Publishing date:

Info

Title:

Effects of Dominant Fungi Species in Rhizophere of ª«ª¤Puccinellia tenuifloraª« on Its Salt and Salinity Tolerance

Author(s):

CHEN Fei; WANG Na; HUANG Shouchen; GAO Xuanmeng; ZHANG Liang; YANG Chunxue

(College of Landscape Architecture,Northeast Forestry University,Harbin,Heilongjiang 150040)ª¤ª¤

Keywords:

arbuscular mycorrhizal fungi; saline-alkali stress; infection rate; physiological metabolic index; ion content

PACS:

-

DOI:

10.11937/bfyy.20173351

Abstract:

The identification of the ª«Puccinellia tenuifloraª« rhizosphere dominant species ª«Funineliformis mosseaeª« and ª«Rhizophagus intraradices ª«were taken as the research object.In order to investigate the effect of the two dominant fungi species on the salt and alkali tolerance of ª«Puccinellia tenuifloraª« as well as their different effects.ª«Funneliformis mosseae ª«andª« Rhizophagus intraradicesª« were purchased and inoculated with the rhizosphere of ª«Puccinellia tenuifloraª« for 80 days,and were treated with salt and alkali for 11 days.After the formation of a symbiotic system,the infection rate,mycorrhizal dependence,some physiological indexes and ion contents were determined.The results indicated that Funneliformis mosseae ª«andª« Rhizophagus intraradicesª« could both form symbiosis with ª«Puccinellia tenuiflora,ª« the infection rate of which was very high and reached to 85.91% and 80.86%,respectively,showing strong mycorrhizal dependence during salt and alkali stress.Under the same stress conditions,AM fungi could significantly reduce the relative conductivity,proline content in the ª«Puccinellia tenuifloraª«,increase the absorption and utilization of N,P and K ions.ª¤

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Last Update: 2018-08-17