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外生菌根真菌可促进榛子幼苗生长，并在生长素信号传导和运输中发挥作用。

The ectomycorrhizal fungus improves growth of hazelnut seedlings and plays a role in auxin signaling and transport.

作者信息

Cheng Yunqing, Sun Siyu, Lou Hanxiao, Dong Yutong, He Hongli, Mei Qi, Liu Jianfeng

机构信息

Jilin Provincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping, China.

出版信息

Front Microbiol. 2024 Aug 7;15:1431120. doi: 10.3389/fmicb.2024.1431120. eCollection 2024.

DOI:10.3389/fmicb.2024.1431120
PMID:39171259
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11335501/
Abstract

INTRODUCTION

can form symbiotic ectomycorrhizal fungi with hazel roots. The mechanism through which promotes hazelnut growth remains unclear.

METHODS

This study aimed to evaluate the effect of ectomycorrhizal fungus on the growth and development of hazel roots and gene expression changes through comparative transcriptome analysis.

RESULTS

After inoculation with , the fungus symbiotically formed ectomycorrhiza with hazel roots. The fresh weights of the aboveground and underground parts of My treatment (inoculated with S. bovista and formed mycorrhiza) were much higher than those of the control, respectively. The length, project area, surface area, volume, forks, and diameter of the inoculated seedlings root were 1.13 to 2.48 times higher than those of the control. In the paired comparison, 3,265 upregulated and 1,916 downregulated genes were identified. The most significantly enriched Gene Ontology term for the upregulated Differentially Expressed Genes was GO:0005215 (transporter activity). Immunohistochemical analysis suggested that the expression levels of auxin and Auxin Response Factor9 were significantly increased by after the formation of mycorrhizal fungi in hazelnut root tips.

DISCUSSION

These results indicate that genes related to auxin biosynthesis, transport and signaling, and transport of nutrients may contribute to root development regulation in hazel ectomycorrhiza.

摘要

引言

能与榛树根形成共生外生菌根真菌。其促进榛树生长的机制尚不清楚。

方法

本研究旨在通过比较转录组分析评估外生菌根真菌对榛树根生长发育及基因表达变化的影响。

结果

接种后，该真菌与榛树根共生形成外生菌根。My处理（接种牛肝菌并形成菌根）地上部分和地下部分的鲜重分别显著高于对照。接种幼苗根的长度、投影面积、表面积、体积、分支数和直径比对照高1.13至2.48倍。在成对比较中，鉴定出3265个上调基因和1916个下调基因。上调的差异表达基因中最显著富集的基因本体论术语是GO:0005215（转运蛋白活性）。免疫组织化学分析表明，榛树根尖形成菌根真菌后，生长素和生长素响应因子9的表达水平显著增加。

讨论

这些结果表明，与生长素生物合成、运输和信号传导以及养分运输相关的基因可能有助于榛树外生菌根中根发育的调节。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/f8c963e053c2/fmicb-15-1431120-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/f38412896cc9/fmicb-15-1431120-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/8c042ef49d22/fmicb-15-1431120-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/e4ecdd065668/fmicb-15-1431120-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/ac21af2e5bc3/fmicb-15-1431120-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/0e03fd416641/fmicb-15-1431120-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/c52979f58028/fmicb-15-1431120-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/9d8a4396195c/fmicb-15-1431120-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/8213e4d77c62/fmicb-15-1431120-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/f8c963e053c2/fmicb-15-1431120-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/f38412896cc9/fmicb-15-1431120-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/8c042ef49d22/fmicb-15-1431120-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/e4ecdd065668/fmicb-15-1431120-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/ac21af2e5bc3/fmicb-15-1431120-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/0e03fd416641/fmicb-15-1431120-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/c52979f58028/fmicb-15-1431120-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/9d8a4396195c/fmicb-15-1431120-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/8213e4d77c62/fmicb-15-1431120-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8619/11335501/f8c963e053c2/fmicb-15-1431120-g009.jpg

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