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129B通过诱导SAUR32和PP2C72之间的相互作用促进植物生长。

129B promotes plant growth by inducing the interaction between SAUR32 and PP2C72.

作者信息

He Juan, Gao Li Yuan, Luo Yong Ping, Chai Min, Wang Hua Feng, Yang Lu Hong, Zhao Kang, Maimaiti Yushanjiang, Nie Yuan Jun, Chen Wei

机构信息

School of Life Science, Shanxi Normal University, Taiyuan, China.

Xinjiang Institute of Plant Protection, Ürümqi, China.

出版信息

Front Microbiol. 2025 Aug 26;16:1637235. doi: 10.3389/fmicb.2025.1637235. eCollection 2025.

DOI:10.3389/fmicb.2025.1637235
PMID:40933130
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12417194/
Abstract

INTRODUCTION

Plant growth-promoting fungi (PGPF) play a fundamental role in plant development, such as nutrient acquisition and root growth. However, the growth promotion mechanisms regulated by are poorly characterized.

METHODS

We examined the growth-promoting effects of Aspergillus niger 129B on tomato plant root, stem, and leaf development through a combination of phenotype analyses and plant biomass measurement. Subsequently, molecular and genetic experiments were conducted to reveal the mechanism promoting root, stem, and leaf development.

RESULTS

It demonstrated that 129B significantly promoted the growth of tomato plants. Plant transcriptome and metabolome analysis revealed that this effect was associated with the plant hormone signaling pathway, particularly the expression of and genes. In addition, 129B could promote the development of root, stem, and leaf tissues by downregulating the expression of and genes. Importantly, we found that the promotion of tissue development may be attributed to the interaction between SAUR32 and PP2C72; the expression of SAUR32 proteins, which act as inhibitors of PP2C72 phosphatases, triggered root H efflux.

DISCUSSION

Our findings concluded that 129B-induced plant promotion is dependent on the interaction between SAUR32 and PP2C72, providing novel insights into beneficial plant-microbiome interactions.

摘要

引言

植物促生真菌（PGPF）在植物发育中发挥着重要作用，如养分获取和根系生长。然而，其调控的生长促进机制尚不清楚。

方法

我们通过表型分析和植物生物量测量相结合的方法，研究了黑曲霉129B对番茄植株根、茎和叶发育的促生作用。随后，进行了分子和遗传实验以揭示促进根、茎和叶发育的机制。

结果

结果表明129B显著促进了番茄植株的生长。植物转录组和代谢组分析表明，这种作用与植物激素信号通路有关，特别是[具体基因1]和[具体基因2]基因的表达。此外，129B可通过下调[具体基因3]和[具体基因4]基因的表达来促进根、茎和叶组织的发育。重要的是，我们发现组织发育的促进可能归因于SAUR32和PP2C72之间的相互作用；作为PP2C72磷酸酶抑制剂的SAUR32蛋白的表达引发了根H外流。

讨论

我们的研究结果表明，129B诱导的植物生长促进依赖于SAUR32和PP2C72之间的相互作用，为有益的植物-微生物组相互作用提供了新的见解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa73/12417194/89e51a8edcea/fmicb-16-1637235-g011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa73/12417194/8024ddec435f/fmicb-16-1637235-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa73/12417194/791b5595fde2/fmicb-16-1637235-g003.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa73/12417194/abd74a0d7dfc/fmicb-16-1637235-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa73/12417194/8c68f7980276/fmicb-16-1637235-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa73/12417194/4d945460896a/fmicb-16-1637235-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa73/12417194/e60f43158ec8/fmicb-16-1637235-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa73/12417194/89e51a8edcea/fmicb-16-1637235-g011.jpg

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