气候变化领域集成服务门户(CCPortal): Molecular Insights into the Accelerated Sprouting of and Apical Dominance Release in Potato Tubers Subjected to Post-Harvest Heat Stress

CCPortal

DOI	10.3390/ijms25031699
	Molecular Insights into the Accelerated Sprouting of and Apical Dominance Release in Potato Tubers Subjected to Post-Harvest Heat Stress
	Liu, Tengfei; Wu, Qiaoyu; Zhou, Shuai; Xia, Junhui; Yin, Wang; Deng, Lujun; Song, Botao; He, Tianjiu
发表日期	2024
ISSN	1661-6596
EISSN	1422-0067
起始页码	25
结束页码	3
卷号	25 期号:3
英文摘要	Climate change-induced heat stress (HS) increasingly threatens potato (Solanum tuberosum L.) production by impacting tuberization and causing the premature sprouting of tubers grown during the hot season. However, the effects of post-harvest HS on tuber sprouting have yet to be explored. This study aims to investigate the effects of post-harvest HS on tuber sprouting and to explore the underlying transcriptomic changes in apical bud meristems. The results show that post-harvest HS facilitates potato tuber sprouting and negates apical dominance. A meticulous transcriptomic profiling of apical bud meristems unearthed a spectrum of differentially expressed genes (DEGs) activated in response to HS. During the heightened sprouting activity that occurred at 15-18 days of HS, the pathways associated with starch metabolism, photomorphogenesis, and circadian rhythm were predominantly suppressed, while those governing chromosome organization, steroid biosynthesis, and transcription factors were markedly enhanced. The critical DEGs encompassed the enzymes pivotal for starch metabolism, the genes central to gibberellin and brassinosteroid biosynthesis, and influential developmental transcription factors, such as SHORT VEGETATIVE PHASE, ASYMMETRIC LEAVES 1, SHOOT MERISTEMLESS, and MONOPTEROS. These findings suggest that HS orchestrates tuber sprouting through nuanced alterations in gene expression within the meristematic tissues, specifically influencing chromatin organization, hormonal biosynthesis pathways, and the transcription factors presiding over meristem fate determination. The present study provides novel insights into the intricate molecular mechanisms whereby post-harvest HS influences tuber sprouting. The findings have important implications for developing strategies to mitigate HS-induced tuber sprouting in the context of climate change.
英文关键词	Solanum tuberosum; potato sprouting; abiotic stress; transcriptome; transcription factor; apical bud meristems
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
WOS类目	Biochemistry & Molecular Biology ; Chemistry, Multidisciplinary
WOS记录号	WOS:001159038700001
来源期刊	INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289552
作者单位	Shandong Agricultural University; Ministry of Agriculture & Rural Affairs; Guizhou Academy of Agricultural Sciences; Huazhong Agricultural University
推荐引用方式 GB/T 7714	Liu, Tengfei,Wu, Qiaoyu,Zhou, Shuai,et al. Molecular Insights into the Accelerated Sprouting of and Apical Dominance Release in Potato Tubers Subjected to Post-Harvest Heat Stress[J],2024,25(3).
APA	Liu, Tengfei.,Wu, Qiaoyu.,Zhou, Shuai.,Xia, Junhui.,Yin, Wang.,...&He, Tianjiu.(2024).Molecular Insights into the Accelerated Sprouting of and Apical Dominance Release in Potato Tubers Subjected to Post-Harvest Heat Stress.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,25(3).
MLA	Liu, Tengfei,et al."Molecular Insights into the Accelerated Sprouting of and Apical Dominance Release in Potato Tubers Subjected to Post-Harvest Heat Stress".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 25.3(2024).