The Effects of Rhizophagus irregularis Inoculation on Transcriptome of Medicago lupulina Leaves at Early Vegetative and Flowering Stages of Plant Development

Author:

Yurkov Andrey P.1ORCID,Afonin Alexey M.1ORCID,Kryukov Alexey A.1,Gorbunova Anastasia O.1,Kudryashova Tatyana R.12,Kovalchuk Anastasia I.12,Gorenkova Anastasia I.13,Bogdanova Ekaterina M.13,Kosulnikov Yuri V.1,Laktionov Yuri V.1,Kozhemyakov Andrey P.1,Romanyuk Daria A.4,Zhukov Vladimir A.4ORCID,Puzanskiy Roman K.35ORCID,Mikhailova Yulia V.6,Yemelyanov Vladislav V.3ORCID,Shishova Maria F.3ORCID

Affiliation:

1. Laboratory of Ecology of Symbiotic and Associative Rhizobacteria, All-Russia Research Institute for Agricultural Microbiology, Pushkin, St. Petersburg 196608, Russia

2. Graduate School of Biotechnology and Food Science, Peter the Great St. Petersburg Polytechnic University, St. Petersburg 194064, Russia

3. Faculty of Biology, St. Petersburg State University, St. Petersburg 199034, Russia

4. Laboratory of Genetics of Plant-Microbe Interactions, All-Russia Research Institute for Agricultural Microbiology, Pushkin, St. Petersburg 196608, Russia

5. Laboratory of Analytical Phytochemistry, Komarov Botanical Institute of the Russian Academy of Sciences, St. Petersburg 197022, Russia

6. Laboratory of Biosystematics and Cytology, Komarov Botanical Institute of the Russian Academy of Sciences, St. Petersburg 197022, Russia

Abstract

The study is aimed at revealing the effects of Rhizophagus irregularis inoculation on the transcriptome of Medicago lupulina leaves at the early (second leaf formation) and later (flowering) stages of plant development. A pot experiment was conducted under conditions of low phosphorus (P) level in the substrate. M. lupulina plants were characterized by high mycorrhizal growth response and mycorrhization parameters. Library sequencing was performed on the Illumina HiseqXTen platform. Significant changes in the expression of 4863 (padj < 0.01) genes from 34049 functionally annotated genes were shown by Massive Analysis of cDNA Ends (MACE-Seq). GO enrichment analysis using the Kolmogorov–Smirnov test was performed, and 244 functional GO groups were identified, including genes contributing to the development of effective AM symbiosis. The Mercator online tool was used to assign functional classes of differentially expressed genes (DEGs). The early stage was characterized by the presence of six functional classes that included only upregulated GO groups, such as genes of carbohydrate metabolism, cellular respiration, nutrient uptake, photosynthesis, protein biosynthesis, and solute transport. At the later stage (flowering), the number of stimulated GO groups was reduced to photosynthesis and protein biosynthesis. All DEGs of the GO:0016036 group were downregulated because AM plants had higher resistance to phosphate starvation. For the first time, the upregulation of genes encoding thioredoxin in AM plant leaves was shown. It was supposed to reduce ROS level and thus, consequently, enhance the mechanisms of antioxidant protection in M. lupulina plants under conditions of low phosphorus level. Taken together, the obtained results indicate genes that are the most important for the effective symbiosis with M. lupulina and might be engaged in other plant species.

Funder

Ministry of Science and Higher Education of the Russian Federation

Publisher

MDPI AG

Subject

Plant Science,Ecology,Ecology, Evolution, Behavior and Systematics

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3