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Mesophyll thickness and sclerophylly among Calotropis procera morphotypes reveal water-saved adaptation to environments

引用

Journal of Arid Land 2019年第6期11卷 795-810页

作者： marcelo f pompelli Keila R MENDES Marcio V RAMOS Jose N B SANTOS Diaa T A YOUSSEf Jaqueline D PEREIRA Laurício ENDRES Alfredo JARMA-OROZCO Rodolfo SOLANO-GOMES Betty JARMA-ARROYO Andre L J SILVA Marcos A SANTOS Werner C ANTUNES Plant Physiology Laboratory Department of BotanyFederal University of PernambucoRecife 50670901Brazil Department of Biochemistry and Molecular Biology Federal University of CearáFortaleza 60020603Brazil Department of Natural Products Faculty of PharmacyKing Abdulaziz UniversityJeddah 21589Saudi Arabia Institute of Botany Federal University of ViçosaRio Paranaíba CampusRio Paranaiba 36570900Brazil Plant Ecophysiology Laboratory Federal University of AlagoasMaceio 57072900Brazil faculty of Agricultural Science University of CórdobaMontería 230002Colombia Instituto Politécnico Nacional Research Interdisciplinary Center for Integrated Rural DevelopmentSanta Cruz XoxocotlanOaxaca 7738Mexico Department of Biology University of MaringáMaringá87020900Brazil

Calotropis procera(Aiton)Dryand(Apocynaceae)is a native species in tropical and subtropical Africa and ***,due to its fast growing and drought-tolerant,it has become an invasive species when it was introduced into Central and South America,as well as the Caribbean ***,*** displays a wide distribution in the *** is important,in particular,because many invasive species exert a high reproductive pressure on the invaded communities or are highly productive in their new distributed *** has been suggested that a very deep root system and a high capacity to reduce stomatal conductance during water shortage could allow this species to maintain the water status required for a normal ***,the true mechanism behind the successful distribution of *** across wet and dry environments is still *** leaves were collected from 12 natural populations in Brazil,Colombia and Mexico,ranging from wet to dry environments during 2014–*** traits of morphology and anatomy from these distinct morphotypes were *** found that *** leaves had a considerable capacity to adjust their morphological,anatomical and physiological traits to different *** magnitude of acclimation responses,i.e.,plasticity,had been hypothesized to reflect the specialized adaptation of plant species to a particular ***,allometric models for leaf area(LA)estimation cannot be grouped as a single *** are narrower and thicker with low amounts of air spaces inside the leaf parenchyma in wet environments,while they are broader and thinner with a small number of palisade cell layers in dry *** on these,we argue that broader and thinner leaves of *** dissipate incident energy at the expense of a higher rate of transpiration to survive in environments in which water is the most limiting factor and to compete in favorable wet environments.

关键词： invasive plant energy budget leaf anatomy morphological trait specific leaf area

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