Arid
DOI10.1093/aobpla/plu084
Influence of halophytic hosts on their parasites-the case of Plicosepalus acaciae
Veste, Maik1,2; Todt, Henning1; Breckle, Siegmar-W.1
通讯作者Veste, Maik
来源期刊AOB PLANTS
ISSN2041-2851
出版年2015
卷号7
英文摘要

Halophytes develop various morphological and physiological traits that enable them to grow successfully on saline substrates. Parasitic plants on halophytic hosts may also encounter salt stress. We investigated the mistletoe Plicosepalus acaciae (syn: Loranthus acacia; Loranthaceae), which occurs on 5 halophytic and at least 10 non-halophytic hosts in the Southern Arava Valley (Israel). Plicosepalus acaciae is a common parasite north of Eilat to the Dead Sea area and in the Jordan Valley. Morphological and physiological responses of P. acaciae to salinity were investigated by comparison of plants on halophytic with those on non-halophytic hosts. Ion patterns of different host-parasite associations were determined as was the development of leaf succulence at different growth stages. The leaf water content of P. acaciae increased and leaves developed succulence when growing on halophytic hosts, especially on Tamarix species, where leaf water content was three times higher than that on non-halophytic hosts and the leaf volume increased four to five times. The reason for increased succulence was a higher ion concentration of, and osmotic adjustment with, Na+ and Cl-. Plicosepalus acaciae showed a high morphological and ecophysiological plasticity, enabling it to cope with salt stress, and can be classified as a facultative eu-halophyte, which increases its halo-succulence according to the host. Host-parasite associations are a model system for the investigation of halophytes under different salt stress conditions.


英文关键词Ion pattern Loranthaceae mistletoe parasite plasticity salt stress succulence
类型Article
语种英语
国家Germany
收录类别SCI-E
WOS记录号WOS:000350558800002
WOS关键词SALINITY TOLERANCE ; DESERT MISTLETOE ; WATER ; ECOPHYSIOLOGY ; LORANTHACEAE ; SPECIFICITY ; JORDAN
WOS类目Plant Sciences ; Ecology
WOS研究方向Plant Sciences ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/185797
作者单位1.Univ Bielefeld, Dept Ecol, D-33615 Bielefeld, Germany;
2.Univ Hohenheim, Inst Bot, D-70599 Stuttgart, Germany
推荐引用方式
GB/T 7714
Veste, Maik,Todt, Henning,Breckle, Siegmar-W.. Influence of halophytic hosts on their parasites-the case of Plicosepalus acaciae[J],2015,7.
APA Veste, Maik,Todt, Henning,&Breckle, Siegmar-W..(2015).Influence of halophytic hosts on their parasites-the case of Plicosepalus acaciae.AOB PLANTS,7.
MLA Veste, Maik,et al."Influence of halophytic hosts on their parasites-the case of Plicosepalus acaciae".AOB PLANTS 7(2015).
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