Gas exchange and production of photosynthetic pigments of Piper aduncum L. Grown at different irradiances

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorPacheco, Fernanda Ventorim-
Autor(es): dc.creatorSilveira, Helbert Rezende de Oliveira-
Autor(es): dc.creatorAlvarenga, Amauri Alves de-
Autor(es): dc.creatorAlvarenga, Ivan Caldeira Almeida-
Autor(es): dc.creatorPinto, José Eduardo Brasil Pereira-
Autor(es): dc.creatorLira, Jean Marcel Sousa-
Data de aceite: dc.date.accessioned2026-02-09T12:00:22Z-
Data de disponibilização: dc.date.available2026-02-09T12:00:22Z-
Data de envio: dc.date.issued2016-09-23-
Data de envio: dc.date.issued2016-09-23-
Data de envio: dc.date.issued2013-12-18-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/11809-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1152275-
Descrição: dc.descriptionThe species Piper aduncum is a plant with great economic potential, because the essential oil has antimicrobial activity and insecticides. Thus, as the light directly affects photosynthesis process, the present study evaluated the gas exchanges’ variables and photosynthetic pigments’ production of P. aduncum grown under different irradiances. Treatments consisted in environments with 100%, 70% and 50% of irradiance and environments with colored nets (red and blue). After 150 days of culture, photosynthetic activity (A), stomatal conductance (gs) transpiration rate (E), internal CO2 concentration (Ci), deficit vapor pressure (DVP), leaf temperature, concentration of internal/external CO2 (Ci/Ca), carboxylation efficiency (A/Ci) and efficiency water use (A/E) were evaluated. Pigments chlorophyll a, b, carotenoids, total and chlorophyll a/b ratio were also measured. From the observed data, it can be concluded that the species Piper aduncun developed various mechanisms for adaptation to different irradiance conditions. Moreover, it can be inferred that their photosynthetic process is more efficient and has larger spectral intensities of light, with higher efficiency photosynthetic when grown under 70% and 100% of radiation.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherScientific Research Publishing-
Direitos: dc.rightsacesso aberto-
???dc.source???: dc.sourceAmerican Journal of Plant Sciences-
Palavras-chave: dc.subjectPlantas medicinais - Trocas gasosas-
Palavras-chave: dc.subjectÓleo essencial-
Palavras-chave: dc.subjectFotossíntese – Pigmento-
Palavras-chave: dc.subjectClorofila-
Palavras-chave: dc.subjectMedicinal plants - Gas exchange-
Palavras-chave: dc.subjectEssential oil-
Palavras-chave: dc.subjectPhotosynthesis – Pigments-
Palavras-chave: dc.subjectChlorophyll-
Palavras-chave: dc.subjectPiper aduncum-
Título: dc.titleGas exchange and production of photosynthetic pigments of Piper aduncum L. Grown at different irradiances-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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