您好，欢迎访问云南省农业科学院 机构知识库！

Leaf physiological and anatomical responses of two sympatric Paphiopedilum species to temperature

文献类型： 外文期刊

作者： Feng, Jing-Qiu 1 ; Wang, Ji-Hua 3 ; Zhang, Shi-Bao 1 ;

作者机构： 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Yunnan Key Lab Wild Plant Resources, Kunming 650201, Yunnan, Peoples R China

2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

3.Yunnan Acad Agr Sci, Flower Res Inst, Kunming 650205, Yunnan, Peoples R China

关键词： Conservation; Cultivation; High-temperature; Leaf anatomy; Paphiopedilum; Photosynthesis

期刊名称：PLANT DIVERSITY （ 影响因子：3.359； ）

ISSN： 2096-2703

年卷期： 2022 年 44 卷 1 期

页码：

收录情况： SCI

摘要： Paphiopedilum dianthum and P. micranthum are two endangered orchid species, with high ornamental and conservation values. They are sympatric species, but their leaf anatomical traits and flowering period have significant differences. However, it is unclear whether the differences in leaf structure of the two species will affect their adaptabilities to temperature. Here, we investigated the leaf photosynthetic, anatomical, and flowering traits of these two species at three sites with different temperatures (Kunming, 16.7 +/- 0.2 degrees C; Puer, 17.7 +/- 0.2 degrees C; Menglun, 23.3 +/- 0.2 degrees C) in southwest China. Compared with those at Puer and Kunming, the values of light-saturated photosynthetic rate (Pmax), stomatal conduc-tance (gs), leaf thickness (LT), and stomatal density (SD) in both species were lower at Menglun. The values of Pmax, gs, LT, adaxial cuticle thickness (CTad) and SD in P. dianthum were higher than those of P. micranthum at the three sites. Compared with P. dianthum, there were no flowering plants of P. micranthum at Menglun. These results indicated that both species were less resistance to high tem-perature, and P. dianthum had a stronger adaptability to high-temperature than P. micranthum. Our findings can provide valuable information for the conservation and cultivation of Paphiopedilum species. Copyright (c) 2021 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：云南省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台