杜鹃花属植物干旱胁迫研究进展
码上扫一扫！杜鹃花属植物干旱胁迫研究进展李丹丹1,2, 李晓花1,2, 张乐华1,2*1. 江西省中国科学院庐山植物园, 江西 庐山 332900;2. 江西省植物迁地保护与利用重点实验室, 江西 九江 332015 摘要: 杜鹃花为世界三大高山花卉和中国十大传统名花之一, 具有极高的观赏价值和广阔的园林应用前景。但是,杜鹃花大多自然分布于高海拔山地, 受遗传机制制约, 性喜冷凉湿润气候, 干旱是制约其迁地保育和园林应用的关键因子。杜鹃花种类繁多、分布地域较广、生态类型多样, 不同物种(品种)对干旱胁迫的响应机制存在差异。该文从种子发芽、形态与解剖特征、生理与生化指标、基因表达等方面综述了杜鹃花对干旱胁迫的响应机制以及外源物质提高杜鹃花抗旱性的国内外研究进展, 分析了当前该研究领域存在的不足, 提出了今后工作中应加强不同生态类型及不同抗旱性杜鹃的水分利用策略和抗旱机制, 以及菌根真菌提高杜鹃花抗旱性的基因调控机制与优良菌株筛选等研究,为我国杜鹃花多样性保育、抗旱性资源发掘及园林应用等提供参考依据。关键词: 杜鹃花, 干旱胁迫, 响应机制, 外源物质, 抗旱性 DOI：10.11931/guihaia.gxzw202004006 分类号:Q945.78 文章编号:1000-3142(2022)04-0700-14 基金项目:国家国际科技合作项目(2014DFA31720); 国家科技基础性工作专项(2015 FY210100-7); 中国科学院科技服务网络计划(STS计划)区域重点项目(KFJ-STS-QYZD-178)[Supported by the International S & T Cooperation Project of China(2014DFA31720); Ministry of Science and Technology of China(2015 FY210100-7); Regional Key Projects of the Science and Technology Service Network Initiative(STS plan)of the Chinese Academy of Sciences(KFJ-STS-QYZD-178)]。 Research progress of drought stress on RhododendronLI Dandan1,2, LI Xiaohua1,2, ZHANG Lehua1,2*1. Lushan Botanical Garden, Jiangxi Province and Chinese Academy of Sciences, Lushan 332900, Jiangxi, China;2. Provincial Key Laboratory of Plant Ex Situ Conservation and Utilization, Jiujiang 332015, Jiangxi, China1. Lushan Botanical Garden, Jiangxi Province and Chinese Academy of Sciences, Lushan 332900, Jiangxi, China; 2. Provincial Key Laboratory of Plant Ex Situ Conservation and Utilization, Jiujiang 332015, Jiangxi, China Abstract: As one of the three alpine flowers in the world and one of the ten traditional famous flowers in China, Rhododendron has high ornamental value and broad landscape applications. However, most of them are naturally distributed in high-altitude mountains, and they prefer cool and humid climate for the restriction of genetic mechanism. Drought is the key factor to restrict their ex-situ conservation and landscape application. As Rhododendron have many different species, cultivars and ecological types, distributed in a wide area, the mechanisms of different species or cultivars responses to drought stress are different. In this paper, how Rhododendron responses to drought stress and the effects of exogenous substances on improving the drought resistance of Rhododendron in China and abroad were reviewed from the aspects of seed germination, morphological and anatomical characteristics, physiological and biochemical parameters, gene expression, etc. In addition, the deficiency of current research and the future research directions were also discussed. It is proposed that the water use strategy and drought resistance mechanism of different ecological types and different drought resistances of Rhododendron should be future studied, as well as the gene regulation mechanism of mycorrhizal fungi for improving the drought resistance and the screening of excellent strains. This study provides the basis for the diversity conservation, the exploitation of drought resistance resources and the landscape applications of Rhododendron in China. Key words: Rhododendron, drought stress, response mechanism, exogenous substances, drought resistance 相似文献(共20条):[1] 陈 霞,杨鹏军,张旭强,杨 宁.转基因烟草在PEG6000模拟干旱胁迫条件下的生理响应[J].广西植物,2016,36(12):1498-1504.[2] 张乐华,孙宝腾,周广,,王书胜,李晓花,单文.高温胁迫下五种杜鹃花属植物的生理变化及其耐热性比较[J].广西植物,2011,31(5):651-658.[3] 庄 平.32种杜鹃花属植物在迁地保育条件下的自交研究[J].广西植物,2017,37(8):959-968.[4] 耿兴敏,;胡才民,;杨秋玉,;全大治.杜鹃花对各种非生物逆境胁迫的抗性研究进展[J].中国野生植物资源,2014(3):18-21.[5] 庐山植物园杜鹃花资源及其在庐山风景区的应用[J].生态科学[6] 安玉艳,梁宗锁.植物应对干旱胁迫的阶段性策略[J].应用生态学报,2012,23(10):2907-2915.[7] 李中华,刘进平,谷海磊,孟文艳,张燕.干旱胁迫对植物气孔特性影响研究进展[J].亚热带植物科学,2016(2):195-200.[8] 菌根真菌与植物抗逆性研究进展[J].菌物研究[9] 忽雪琦,李东阳,严加坤,张岁岐.干旱胁迫下外源茉莉酸甲酯对玉米幼苗根系吸水的影响[J].植物生理学报,2018(6).[10] 李涛,杜娟,郝志鹏,张莘,陈保冬.丛枝菌根提高宿主植物抗旱性分子机制研究进展[J].生态学报,2012,32(22):7169-7176.[11] 谢小玉,马仲炼,白鹏,刘晓健.辣椒开花结果期对干旱胁迫的形态与生理响应[J].生态学报,2014,34(13):3797-3805.[12] 吴强盛,夏仁学,胡正嘉.丛枝菌根对枳实生苗抗旱性的影响研究[J].应用生态学报,2005,16(3):459-463.[13] 李江,汤红玲,陈惠萍.外源一氧化碳对干旱胁迫下水稻幼苗抗氧化系统的影响[J].西北植物学报,2010,30(2).[14] 关军锋,李广敏.Ca^2＋与植物抗旱性的关系[J].植物学通报,2001,18(4):473-478,458.[15] 关军锋,李广敏.Ca2+与植物抗旱性的关系[J].植物学报,2001,18(4):473-478.[16] Ca2+与植物抗旱性的关系[J].植物学通报[17] 胡博,肖素妮,吕滟,李玲.不同花生品种响应干旱胁迫后叶片内ABA与AhNCED1的分布[J].中国细胞生物学学报,2012(10):992-997.[18] 刘凤,滕洪辉,任百祥,石淑云.土壤污染的生态毒理诊断研究进展[J].生态学杂志,2014,25(9):2733-2744.[19] 胡博,肖素妮,吕滟,李玲.不同花生品种响应干旱胁迫后叶片内ABA与AhNCEDl的分布[J].细胞生物学杂志,2012(10):992-997.[20] 郑钰,高博,孙立夫,邴艳红,裴克全.银叶杜鹃和繁花杜鹃根部真菌的多样性[J].生物多样性,2010,18(1):76-82.
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