Physiological and transcriptome analysis of changes in endogenous hormone contents and related synthesis and signaling genes during the heat stress in garlic (Allium sativum L.)

被引：1

作者：

Yang, Qing-qing ^{[1
]}

Fan, Ji-De ^{[1
]}

Liu, Can-yu ^{[1
]}

Zhao, Yong-qiang ^{[1
]}

Xu, Zhi-sheng ^{[2
]}

Lu, Xin-juan ^{[1
]}

Ge, Jie ^{[1
]}

Zhang, Bi-wei ^{[1
]}

Li, Meng-qian ^{[1
]}

Yang, Yan ^{[1
]}

Yang, Feng ^{[1
]}

机构：

[1] Minist Agr & Rural Affairs, Xuzhou Inst Agr Sci Jiangsu Xuhuai Dist, Key Lab Biol & Genet Breeding Sweetpotato, Xuzhou 221131, Peoples R China

[2] Nanjing Agr Univ, Coll Hort, State Key Lab Crop Genet & Germplasm Enhancement, Nanjing, Peoples R China

来源：

BMC PLANT BIOLOGY | 2025年 / 25卷 / 01期

关键词：

Garlic (Allium sativum L.); Hormone; RNA-seq; Gene expression analysis; High-temperature;

D O I：

10.1186/s12870-025-06346-8

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

High-temperature stress severely limits the growth, development, yield, and quality of garlic (Allium sativum L.), but the role of hormone signaling in its heat stress response remains unclear. This study examined changes in seven plant hormones and the expression of related genes in garlic leaves ('Xusuan No. 6') under heat stress (38 degrees C for 0, 2, 4, and 24 h). Growth-promoting hormones, auxin and gibberellic acid, significantly decreased within 2 h of heat stress, while stress-response hormones, including abscisic acid, jasmonic acid, salicylic acid, and ethylene, increased. KEGG pathway analysis revealed significant changes in genes related to hormone biosynthesis and signal transduction, such as NCED and PYR/PYL in the ABA pathway, LOX and OPR in JA biosynthesis, AUX and ARF in IAA signaling, and ERT and ERF in ethylene signaling. A protein-protein interaction network identified 15 hub genes potentially coordinating hormone regulation under heat stress. These findings provide a basis for functional validation of key hormone-related genes in the garlic heat-stress response and suggest potential genetic targets for the development of heat-tolerant garlic varieties.

引用

页数：20