气候变化领域集成服务门户(CCPortal): Drought reduces productivity and anti-herbivore defences, but not mycorrhizal associations, of perennial prairie forbs

CCPortal

DOI	10.1111/plb.13604
	Drought reduces productivity and anti-herbivore defences, but not mycorrhizal associations, of perennial prairie forbs
	Duell, E. B.; Baum, K. A.; Wilson, G. W. T.
发表日期	2024
ISSN	1435-8603
EISSN	1438-8677
起始页码	26
结束页码	2
卷号	26 期号:2
英文摘要	During drought, plants allocate resources to aboveground biomass production and belowground carbohydrate reserves, often at the expense of production of defence traits. Additionally, drought has been shown to alter floral resources, with potential implications for plant-pollinator interactions. Although soil symbionts, such as arbuscular mycorrhizal (AM) fungi, can alleviate drought stress in plants, certain levels of drought may negatively impact this relationship, with potential cascading effects. Because of their importance to plant and animal community diversity, we examined effects of drought on biomass production, physical defence properties, nectar production, and associated AM fungal abundance of five common prairie forb species in a greenhouse study. Reduced soil moisture decreased vegetative biomass production. Production of trichomes and latex decreased under drought, relative to well-watered conditions. Ruellia humilis flowers produced less nectar under drought, relative to well-watered conditions. Intra-radical AM fungal colonization was not significantly affected by drought, although extra-radical AM fungal biomass associated with S. azurea decreased following drought. Overall, grassland forb productivity, defence, and nectar production were negatively impacted by moderate drought, with possible negative implications for biotic interactions. Reduced flower and nectar production may lead to fewer pollinator visitors, which may contribute to seed limitation in forb species. Reduced physical defences increase the likelihood of herbivory, further decreasing the ability to store energy for essential functions, such as reproduction. Together, these results suggest drought can potentially impact biotic interactions between plants and herbivores, pollinators, and soil symbionts, and highlights the need for direct assessments of these relationships under climate change scenarios.
英文关键词	Anti-herbivore defences; arbuscular mycorrhizal fungi; Asclepias; drought; forbs; grasslands
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001137977100001
来源期刊	PLANT BIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/299719
作者单位	Oklahoma State University System; Oklahoma State University - Stillwater; Oklahoma State University System; Oklahoma State University - Stillwater; University of Kansas
推荐引用方式 GB/T 7714	Duell, E. B.,Baum, K. A.,Wilson, G. W. T.. Drought reduces productivity and anti-herbivore defences, but not mycorrhizal associations, of perennial prairie forbs[J],2024,26(2).
APA	Duell, E. B.,Baum, K. A.,&Wilson, G. W. T..(2024).Drought reduces productivity and anti-herbivore defences, but not mycorrhizal associations, of perennial prairie forbs.PLANT BIOLOGY,26(2).
MLA	Duell, E. B.,et al."Drought reduces productivity and anti-herbivore defences, but not mycorrhizal associations, of perennial prairie forbs".PLANT BIOLOGY 26.2(2024).