干旱区生态环境知识资源中心(Arid): Contrasting gas exchange effects on the interactions of two mistletoe species and their host Acacia schaffneri

Arid

DOI	10.1016/j.jaridenv.2019.104041
	Contrasting gas exchange effects on the interactions of two mistletoe species and their host Acacia schaffneri
	Queijeiro-Bolanos, Monica E.; Malda-Barrera, Guadalupe X.; Carrillo-Angeles, Israel G.; Suzan-Azpiri, Humberto
通讯作者	Malda-Barrera, Guadalupe X.
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2020
卷号	173
英文摘要	Mistletoes nutrient and water uptake can alter the gas exchange activity of their host plants, leading them to a diminished photosynthetic capacity and poor water use efficiency. This is particularly important in semi-arid areas, where water availability is a limiting factor. The aim of this study was to evaluate gas exchange (photosynthetic net rate (A), stomatal conductance (G) and intrinsic water use efficiency (iWUE)) of uninfected Acacia schaffneri trees, compared to trees infected by two mistletoe species, Psittacanthus calyculatus and Phoradendron brachystachyum, in a semi-arid zone in central Mexico. We also registered the physiological performance of the two-infecting species. All variables were measured in a monthly basis for one year. Physiological parameters for Acacia trees and for the two-mistletoe species, varied along the year, suggesting an important effect of the environmental conditions. Infected versus uninfected trees were not different for A and iWUE, however G in trees infected with P. brachystachyum was significantly lower, particularly on severely infected trees. Mistletoe parameters also varied with time and severity of infection, the latter suggesting a density dependent pattern: P. brachystachyum seems to be competing with its conspecific since A and iWUE were lower when infection was high, whereas P. calyculatus was favored with a greater iWUE when coexisting with its conspecifics. Results suggest that seasonality effect is more important than mistletoe infection in the physiological performance of the host.
英文关键词	Acacia Mistletoes Parasitism Photosynthetic rate Stomatal conductance Water use efficiency
类型	Article
语种	英语
国家	Mexico
收录类别	SCI-E
WOS记录号	WOS:000498317600014
WOS关键词	WATER
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2020-02-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312763
作者单位	Univ Autonoma Queretaro, Fac Ciencias Nat, Av Ciencias S-N, Juriquilla 76230, Queretaro, Mexico
推荐引用方式 GB/T 7714	Queijeiro-Bolanos, Monica E.,Malda-Barrera, Guadalupe X.,Carrillo-Angeles, Israel G.,et al. Contrasting gas exchange effects on the interactions of two mistletoe species and their host Acacia schaffneri[J],2020,173.
APA	Queijeiro-Bolanos, Monica E.,Malda-Barrera, Guadalupe X.,Carrillo-Angeles, Israel G.,&Suzan-Azpiri, Humberto.(2020).Contrasting gas exchange effects on the interactions of two mistletoe species and their host Acacia schaffneri.JOURNAL OF ARID ENVIRONMENTS,173.
MLA	Queijeiro-Bolanos, Monica E.,et al."Contrasting gas exchange effects on the interactions of two mistletoe species and their host Acacia schaffneri".JOURNAL OF ARID ENVIRONMENTS 173(2020).