西北植物学报2024，Vol.44Issue(7)：1153-1163,11.DOI:10.7606/j.issn.1000-4025.20230774
不同牡丹叶片解剖结构及其环境适应性
Leaf anatomy of different peony and its environmental adaptability
摘要
Abstract
[Objective]We aim to investigate the morphological adaptation characteristics of peony in differ-ent habitats to the environment in the plain areas,and to provide references for peony conservation re-search and screening of high-quality germplasm resources.[Methods]The Central Plain peonies(Paeonia ostii'Fengdan'and P.'Luoyanghong')and wild peonies(P.delavayi Franch,P.potanini,P.lud-lowii,P.lutea(Tibet),P.lutea and P.qiui)were used as materials,and paraffin section technique was used to observe the leaf structure and analyze the related indexes.[Results](1)The leaf epidermal morphology of the Central Plain peonies and wild peonies showed varying degrees of variation.The leaves were heterofacial,with the upper and lower epidermal cells were irregularly shaped,and the stomata was uniformly distributed in the lower epidermis.(2)The leaves and cuticles of P.ludlowii were thin.The palisade tissue was underdeveloped.The intercellular space was large and the stomatal density was high.The thickness of leaves,palisade tissue,and sponge tissue of P.lutea was the largest.(3)Stomatal den-sity and epidermal thickness,chlorophyll b and chlorophyll a/b,total chlorophyll and chlorophyll a/b were significantly negatively correlated(P＜0.01).Stomatal index is positively correlated with palisade tissue thickness,palisade tissue thickness and leaf thickness,chlorophyll b and total chlorophyll.[Conclusion]The wild peony germplasms except P.ludlowii have strong adaptability to the plain habi-tats,and the wet structure of P.ludlowii is the main reason why it cannot be cultivated in the plain area.关键词
牡丹/叶片解剖结构/光合色素/生态适应性Key words
peony/leaf anatomical structure/photosynthetic pigments/ecology adaptation分类
农业科技引用本文复制引用
张冬勤,贾文庆,何松林,张敏,于嘉伦,王政..不同牡丹叶片解剖结构及其环境适应性[J].西北植物学报,2024,44(7):1153-1163,11.基金项目
国家重点研发计划支持课题项目(2018YFD1000401) （2018YFD1000401）
中原领军人才项目(ZYYCYU202012129) （ZYYCYU202012129）
河南省科技攻关项目(232102111107) （232102111107）
河南省重点研发专项(231111110600) （231111110600）
