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Modification of Cuticular Wax Composition and Biosynthesis by Epichloe gansuensis in Achnatherum inebrians at Different Growing Periods

文献类型: 外文期刊

作者: Zhao, Zhenrui 1 ; Tian, Mei 2 ; Zeng, Peng 1 ; Christensen, Michael J. 3 ; Kou, Mingzhu 4 ; Nan, Zhibiao 1 ; Zhang, Xingxu 1 ;

作者机构: 1.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Key Lab Grassland Livestock Ind Innovat, Lanzhou 730020, Peoples R China

2.Ningxia Acad Agr & Forestry Sci, Inst Hort, Yinchuan 750002, Ningxia, Peoples R China

3.Grasslands Res Ctr, Private Bag 11 008, Palmerston North 4442, New Zealand

4.CGS China Geol Survey, Xining Ctr Nat Resources Comprehens Survey, Xining 810000, Peoples R China

关键词: Epichloe gansuensis; Achnatherum inebrians; growing periods; cuticular wax; GC-MS; transcriptome analysis

期刊名称:AGRICULTURE-BASEL ( 影响因子:3.408; 五年影响因子:3.459 )

ISSN:

年卷期: 2022 年 12 卷 8 期

页码:

收录情况: SCI

摘要: Cuticular wax plays a critical role as a plant protectant against various environmental stresses. We predicted that the presence of the mutualistic fungal endophyte Epichloe gansuensis in Achnatherum inebrians would change both the composition of leaf cuticular wax as plants aged during the growing season and the gene expression levels associated with the wax biosynthesis pathway. Endophyte-infected (EI) and endophyte-free (EF) A. inebrians plants were established for a four-month pot experiment. In agreement with our prediction, the presence of E. gansuensis can change the composition of leaf cuticular wax at different growing periods, particularly the proportion of esters, fatty acids and hydrocarbons. The proportion of fatty acids in EI plants was lower than that in EF plants. The proportion of hydrocarbons increased and esters decreased as plants grew. Furthermore, we found 11 DEGs coding for proteins involved in cuticular wax biosynthesis, including FabF, FAB2, ECR, FAR, CER1, ABCB1 and SEC61A. The present study highlights the significant contribution of E. gansuensis to leaf cuticular wax composition and biosynthesis in A. inebrians plants.

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