Physiological and biochemical changes associated with the induction of facultative CAM in Pereskia aculeata under drought stress and recovery

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorFederal Rural University of Pernambuco - UFRPE-
Autor(es): dc.contributorUniversity of the Western Cape-
Autor(es): dc.contributorFlorida Gulf Coast University-
Autor(es): dc.creatorCenciareli, Luanna Costa-
Autor(es): dc.creatorJusti, Moni Soares-
Autor(es): dc.creatorFerreira-Silva, Sérgio Luiz-
Autor(es): dc.creatorde Almeida, Luiz Fernando Rolim-
Autor(es): dc.creatorSershen,-
Autor(es): dc.creatorLima Neto, Milton C.-
Data de aceite: dc.date.accessioned2025-08-21T20:45:55Z-
Data de disponibilização: dc.date.available2025-08-21T20:45:55Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.plaphy.2025.109681-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/298689-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/298689-
Descrição: dc.descriptionClimate change-induced drought increasingly threatens plant productivity. Facultative Crassulacean Acid Metabolism (CAM) represents a potential adaptive strategy, allowing plants to optimize water use efficiency, but the mechanisms underlying its induction and regulation remain poorly understood in many edible wild plant species. This motivated the present study which aimed to characterize the physiological and biochemical changes associated with the induction of facultative CAM in Pereskia aculeata under drought stress and subsequent recovery. Seedlings were subjected to a 60-day drought period followed by rehydration. We assessed the effects on growth, water status, gas exchange, chlorophyll fluorescence, CAM-related physiological parameters (titratable acidity, malate content, and the activities of phosphoenolpyruvate carboxylase (PEPc) and malate dehydrogenase (MDH)), as well as reactive oxygen species (ROS) metabolism. Drought induced significant nocturnal accumulation of malate and nocturnal acidity and increased the activities of PEPc and MDH. While antioxidant enzyme activities decreased during drought, they increased significantly after rehydration. Collectively the data suggest an induction of facultative CAM in P. aculeata under drought and highlight key physiological and biochemical changes accompanying this C3 to CAM photosynthesis transition that may assist in balancing productivity and water conservation and managing oxidative stress during drought. This study provides valuable insights into the physiological and biochemical mechanisms underlying CAM induction in wild species, which points to their potential for enhancing drought tolerance in plants, particularly in the context of climate change.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Biosciences, São Vicente, SP-
Descrição: dc.descriptionAcademic Unity of Serra Talhada Federal Rural University of Pernambuco - UFRPE, PE-
Descrição: dc.descriptionSão Paulo State University Institute of Biosciences, SP-
Descrição: dc.descriptionDepartment of Biodiversity and Conservation Biology University of the Western Cape, Bellville-
Descrição: dc.descriptionThe Water School Florida Gulf Coast University-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Biosciences, São Vicente, SP-
Descrição: dc.descriptionSão Paulo State University Institute of Biosciences, SP-
Idioma: dc.languageen-
Relação: dc.relationPlant Physiology and Biochemistry-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectphotosynthetic plasticity-
Palavras-chave: dc.subjectReactive oxygen species-
Palavras-chave: dc.subjectWater stress-
Título: dc.titlePhysiological and biochemical changes associated with the induction of facultative CAM in Pereskia aculeata under drought stress and recovery-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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