Physiological and proteomic analysis of mycorrhizal Pinus massoniana inoculated with Lactarius insulsus under drought stress

Physiological and proteomic analysis of mycorrhizal Pinus massoniana inoculated with Lactarius... This study aimed to investigate physiological and protein expression alterations of mycorrhizal Pinus massoniana Lamb. inoculated with Lactarius insulsus in response to drought stress. The P. massoniana seedlings were inoculated with L. insulsus (Li group) and ectomycorrhized fungal-free filtrate (control, CK group), respectively. After two and a half years, all the plants were exposed to a simulate drought condition without water for 21 days. The soil relative water content (SRWC), wilting degree (WD) and wilting rate (WR) of the plants were measured and root proteome was analyzed based on two-dimensional gel electrophoresis (2-DE), respectively at four time points as 0, 7, 14 and 21 days during the whole drought period. Finally, the electrospray ionization mass spectrometry (ESI-MS) was used to identify the differentially expressed proteins (DEPs) between Li and CK groups. The SRWC was higher, while WR and WD were lower in Li group, compared with that in CK group. Based on 2-DE and ESI-MS, 22 DEPs were identified between Li and CK groups during drought stress. Among them, four proteins had the annotated information in relevant databases, including 1,4-benzoquinone reductase, PSCHI4, ribosomal protein L16 (RPL16) and AINTEGUMENTA-like (AIL) protein. Mycorrhizal P. massoniana inoculated with L. insulsus achieved an enhanced drought resistance as compared to the non-mycorrhizal, and the altered protein expressions such as 1,4-benzoquinone reductase, PSCHI4, RPL16, and AIL might contribute to the improved resistance under drought stress. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Physiological and proteomic analysis of mycorrhizal Pinus massoniana inoculated with Lactarius insulsus under drought stress

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Publisher
Pleiades Publishing
Copyright
Copyright © 2016 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Physiology; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443716040178
Publisher site
See Article on Publisher Site

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