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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
15/09/2023 |
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Data da última atualização: |
15/09/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CERRI NETO, B.; SILVA, F.R.N.; FERREIRA, T.R.; CRASQUE, J.; ARANTES, L. de O.; MACHADO FILHO, J. A.; SOUZA, T. C. de; FALQUETO, A. R .; DOUSSEAU, S. |
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Afiliação: |
Basilio Cerri Neto, Incaper/Estágio; Lucio de Oliveira Arantes, Incaper; José Altino Machado Filho, Incaper; Sara Dousseau Arantes, Incaper. |
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Título: |
Responses of wild Piper species to drought and rehydration cycles considering stomatal closure as a marker of the alarm phase. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
PHOTOSYNTHETICA, v. 61, n. 3, p. 363-376, 2023. |
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Idioma: |
Português |
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Conteúdo: |
Studies that simulate recurrent drought events with subsequent episodes of rehydration better reflect natural conditions and allow visualization of differential acclimatization responses resulting from memory and tolerance mechanisms. Piper aduncum and Piper tuberculatum were grown in a greenhouse and were subjected to three successive cycles of drought and subsequent rehydration. After suspending irrigation, gas exchanges were measured daily with IRGA. When stomatal conductances close to zero were obtained, the plants were rehydrated and kept irrigated. In P. tuberculatum, stomatal conductance was always higher after periods of rehydration compared to the period before the drought, while the transpiration rate was lower only during the drought. The damage to the photosynthetic apparatus was caused by the influence of the interception of the flow of electrons in the transport chain. We came to the conclusion that the dehydrated plants showed an alert signal, which triggered response mechanisms to prevent or deal with the water
stress situation. |
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Thesagro: |
Pimenta; Piper Umbellatum; Piperaceae. |
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Categoria do assunto: |
-- |
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URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/item/4478/1/piper.pdf
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Marc: |
LEADER 01819naa a2200253 a 4500
001 1025047
005 2023-09-15
008 2023 bl uuuu u00u1 u #d
100 1 $aCERRI NETO, B.
245 $aResponses of wild Piper species to drought and rehydration cycles considering stomatal closure as a marker of the alarm phase.$h[electronic resource]
260 $c2023
520 $aStudies that simulate recurrent drought events with subsequent episodes of rehydration better reflect natural conditions and allow visualization of differential acclimatization responses resulting from memory and tolerance mechanisms. Piper aduncum and Piper tuberculatum were grown in a greenhouse and were subjected to three successive cycles of drought and subsequent rehydration. After suspending irrigation, gas exchanges were measured daily with IRGA. When stomatal conductances close to zero were obtained, the plants were rehydrated and kept irrigated. In P. tuberculatum, stomatal conductance was always higher after periods of rehydration compared to the period before the drought, while the transpiration rate was lower only during the drought. The damage to the photosynthetic apparatus was caused by the influence of the interception of the flow of electrons in the transport chain. We came to the conclusion that the dehydrated plants showed an alert signal, which triggered response mechanisms to prevent or deal with the water stress situation.
650 $aPimenta
650 $aPiper Umbellatum
650 $aPiperaceae
700 1 $aSILVA, F.R.N.
700 1 $aFERREIRA, T.R.
700 1 $aCRASQUE, J.
700 1 $aARANTES, L. de O.
700 1 $aMACHADO FILHO, J. A.
700 1 $aSOUZA, T. C. de
700 1 $aFALQUETO, A. R .
700 1 $aDOUSSEAU, S.
773 $tPHOTOSYNTHETICA$gv. 61, n. 3, p. 363-376, 2023.
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Biblioteca Rui Tendinha (BRT) |
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| 97. | | FAVARATO, L. F.; GUARÇONI, R. G.; SIQUEIRA, A. P.; SOUZA, J. L. de. Variação térmica e temperatura do solo e planta em diferentes sistemas de cultivo de alface de primavera/verão. In: ENCONTRO LATINO-AMERICANO DE INICIAÇÃO CIENTÍFICA, 21.; ENCONTRO LATINO AMERICANO DE PÓS GRADUAÇÃO, 17.; ENCONTRO NACIONAL DE INICIAÇÃO À DOCÊNCIA, 7., 2017, São José dos Campos. Ciência Que Aproxima, Ciência Que Liberta. São José dos Campos: UNIVAP, 2017.| Tipo: Publicação em Anais de Congresso |
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