气候变化领域集成服务门户(CCPortal): Comparative analysis of defensive secondary metabolites in wild teosinte and cultivated maize under flooding and herbivory stress

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DOI	10.1111/ppl.14216
	Comparative analysis of defensive secondary metabolites in wild teosinte and cultivated maize under flooding and herbivory stress
	Mleziva, Aaron D.; Ngumbi, Esther N.
发表日期	2024
ISSN	0031-9317
EISSN	1399-3054
起始页码	176
结束页码	1
卷号	176 期号:1
英文摘要	Climate change is driving an alarming increase in the frequency and intensity of abiotic and biotic stress factors, negatively impacting plant development and agricultural productivity. To survive, plants respond by inducing changes in below and aboveground metabolism with concomitant alterations in defensive secondary metabolites. While plant responses to the isolated stresses of flooding and insect herbivory have been extensively studied, much less is known about their response in combination. Wild relatives of cultivated plants with robust stress tolerance traits provide an excellent system for comparing how diverse plant species respond to combinatorial stress, and provide insight into potential germplasms for stress-tolerant hybrids. In this study, we compared the below and aboveground changes in the secondary metabolites of maize (Zea mays) and a flood-tolerant wild relative Nicaraguan teosinte (Zea nicaraguensis) in response to flooding, insect herbivory, and their combination. Root tissue was analyzed for changes in belowground metabolism. Leaf total phenolic content and headspace volatile organic compound emission were analyzed for changes in aboveground secondary metabolism. Results revealed significant differences in the root metabolome profiles of teosinte and maize. Notably, the accumulation of the flavonoids apigenin, naringenin, and luteolin during flooding and herbivory differentiated teosinte from maize. Aboveground, terpenes, including trans-alpha-bergamotene and (E)-4,8-dimethylnona-1,3,7-triene, shaped compositional differences in their volatile profiles between flooding, herbivory, and their combination. Taken together, these results suggest teosinte may be more tolerant than maize due to dynamic metabolic changes during flooding and herbivory that help relieve stress and influence plant-insect interactions.
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001177436600009
来源期刊	PHYSIOLOGIA PLANTARUM
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300226
作者单位	University of Illinois System; University of Illinois Urbana-Champaign
推荐引用方式 GB/T 7714	Mleziva, Aaron D.,Ngumbi, Esther N.. Comparative analysis of defensive secondary metabolites in wild teosinte and cultivated maize under flooding and herbivory stress[J],2024,176(1).
APA	Mleziva, Aaron D.,&Ngumbi, Esther N..(2024).Comparative analysis of defensive secondary metabolites in wild teosinte and cultivated maize under flooding and herbivory stress.PHYSIOLOGIA PLANTARUM,176(1).
MLA	Mleziva, Aaron D.,et al."Comparative analysis of defensive secondary metabolites in wild teosinte and cultivated maize under flooding and herbivory stress".PHYSIOLOGIA PLANTARUM 176.1(2024).