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The arbuscular mycorrhizal symbiotic status of Populus euphratica , a drought resistant tree species from arid lands
Author(s) -
Yang Yuhai,
Chen Yaning,
Cai Baiyan,
Jie Weiguang,
Lv Dongying
Publication year - 2013
Publication title -
ecohydrology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.982
H-Index - 54
eISSN - 1936-0592
pISSN - 1936-0584
DOI - 10.1002/eco.1417
Subject(s) - populus euphratica , rhizosphere , spore , glomus , biology , botany , seedling , hypha , arid , sporangium , acaulospora , symbiosis , arbuscular mycorrhizal , ecology , bacteria , genetics
In this study, we isolated arbuscular mycorrhizal fungi (AMF) from rhizosphere of Populus euphratica , naturally occurred in Tarim River Basin. We found morphologically similar few AMF spores from rhizosphere of P . euphratica under drought stress. The average AMF spore densities were 53/50 and 32/50 g in air dried soil from rhizosphere of mature and seedling of P . euphratica , respectively. The AMF spores were simple and Glomus mosseae in nature, identified by traditional morphological methods and molecular techniques. The G . mosseae fungal spores formed mainly in three different types: alone in the soil, inside of the roots or sporangium. The hypha was single and funnel‐shaped at the site of attachment. By optical microscopic observation, the vesicular structures demonstrated a formation by AMF inside the roots of P . euphratica tree. The molecular analysis data showed that a mycorrhizal symbiont was established by G . mosseae associated with P . euphratica root. Moreover, the AMF colonization rate and the infection intensity were not significant high. Specifically, the average colonization frequency (F%) and mycorrhizal infection intensity (M%) were 8.45%, 2.9% for the mature, and 8.62%, 0.3% for the young seedlings of P . euphratica , respectively. Copyright © 2013 John Wiley & Sons, Ltd.