Research progress on heat resistance of Rhododendron germplasm resources
China has the richest germplasm resources of Rhododendron, but most species thrive in high-altitude cool areas. Currently, only a limited number of these species are utilized in landscaping, and their summer performance is generally poor. With the exacerbation of the global greenhouse effect, it has...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2025-02-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2024.05.101 |
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| Summary: | China has the richest germplasm resources of Rhododendron, but most species thrive in high-altitude cool areas. Currently, only a limited number of these species are utilized in landscaping, and their summer performance is generally poor. With the exacerbation of the global greenhouse effect, it has become imperative to research on the heat response of Rhododendron germplasm resources, to screen for heat-tolerant germplasms, and to develop heat-tolerant cultivars. In this paper, we elucidated the heat response mechanisms of Rhododendron under heat stress from four aspects: initial response and heat signal transduction, gene expression and regulation, physiological metabolic adjustment, and morphological structural changes. Additionally, we reviewed the current research on heat resistance evaluation indicators and methods for Rhododendron, as well as strategies for improving heat resistance. Furthermore, we compiled a catalog of Rhododendron germplasm resources with heat resistance potential distributed in low-altitude warm areas worldwide. Finally, we provided a perspective on future research directions in the molecular mechanisms of heat resistance and the genetics of domestication, aiming to offer a reference for the study and breeding of heat-tolerant Rhododendron germplasm resources. |
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| ISSN: | 1008-9209 2097-5155 |