Growth, gas exchange and water use efficiency of the facultative hemiparasite Rhinanthus minor associated with hosts differing in foliar nitrogen concentration
Growth, gas exchange and water use efficiency of the facultative hemiparasite Rhinanthus minor associated with hosts differing in foliar nitrogen concentration
复制标题
不同叶面氮浓度寄主兼性半寄生犀牛的生长、气体交换和水分利用效率
DOI：
10.1111/j.1399-3054.1993.tb01787.x
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发表时间：
1993
影响因子：
6.4
通讯作者：
M. Press
中科院分区：
文献类型：
--
作者：
W. Seel;R. Cooper;M. Press
兼性半寄生被子植物Rhinanthus minor生长在11种不同的宿主上，并且在没有宿主的情况下。R的高度。寄生在豆科植物红三叶上的未成年人超过未附着植物一个数量级以上，在草和非豆科植物双子叶宿主上的表现介于这两个极端之间。光合作用的光饱和速率。不同寄主上的次要性状为1. 5到22 5 μmol g−1干重min−1，与生长呈正相关。寄生虫叶片中的氮浓度超过了主机。前者与光合饱和速率呈正相关，与光合氮利用效率呈负相关。叶片氮素浓度与水分利用效率无相关性。minor.数据进行了讨论，在有关的氮和水的使用在槲寄生的研究。
The facultative hemiparasitic angiosperm Rhinanthus minor was grown on 11 different host species, and in the absence of a host. The height of R. minor parasitising the legume Trifolium pratense exceeded that of unattached plants by more than an order of magnitude, with performance on grasses and non-legume dicotlyedonous hosts between these two extremes. Light saturated rates of photosynthesis in R. minor on different hosts ranged from 1. 5 to 22. 5 μmol g−1 dry weight min−1, and were positively correlated with growth. Foliar nitrogen concentrations in the parasite exceeded those of the hosts. The former were positively related to light saturated rates of photosynthesis, and inversely related to photosynthetic nitrogen use efficiency. There was no relationship between leaf nitrogen concentration and water use efficiency in R. minor. The data are discussed in relation to studies of nitrogen and water use in mistletoes.