Plant ecology, resources and taxonomy

Ecological Stoichiometry of Common Parasitic Plants and the Relationship with Their Hosts in Xishuangbanna, Yunnan

  • MEN Shi-zheng ,
  • LIU Wen-yao ,
  • MO Yu-xuan ,
  • ZHANG Ting-ting ,
  • FAN Xiao-yang
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  • (1.CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, Yunnan China; 2.University of Chinese Academy of Sciences, Beijing 100049, China)

Received date: 2020-04-12

  Revised date: 2020-07-21

  Online published: 2020-08-30

Abstract

In order to explore the ecological stoichiometric characteristics and homeostasis of common parasitic plants in tropical Yunnan, two dominant hemiparasitic species Scurrula chingii var. yunnanensis, Dendrophthoe pentandra and one dominant holoparasitic plant Cuscuta japonica and their hosts were selected in tropical area of Xishuangbanna, Yunnan. The results showed that the leaves of two hemiparasitic plants had lower C, N contents and N:P ration but higher P content compared with common terrestrial plants; holoparasitic plant C. japonica had higher N and P contents, but lower N:P. The C:N, C:P ratios of the two hemiparasitic plants were significantly higher than those of holoparasitic plant C. japonica. There was not significant seasonal variation in stoichiometry of C, N and P of the hemiparasitic and holoparasitic plants. Compared with the holoparasitic plants, the hemiparasitic plants had a stronger correlation with their hosts. The homeostasis indexes of C, N, P stoichiometry of holoparasitic plant C. japonica were significantly higher than those of two hemiparasitic plants. The homeostasis indexes of the holoparasitic plant C. japonica in the rainy season were significantly higher than those in the dry season.

Cite this article

MEN Shi-zheng , LIU Wen-yao , MO Yu-xuan , ZHANG Ting-ting , FAN Xiao-yang . Ecological Stoichiometry of Common Parasitic Plants and the Relationship with Their Hosts in Xishuangbanna, Yunnan[J]. Subtropical Plant Science, 2020 , 49(04) : 270 -278 . DOI: 10.3969/j.issn.1009-7791.2020.04.005

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