Typha domingensis Pers. growth responses to leaf anatomy and photosynthesis as influenced by phosphorus

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Autor(es): dc.creatorSantos, Karina Rodrigues-
Autor(es): dc.creatorPereira, Marcio Paulo-
Autor(es): dc.creatorFerreira, Ana Carolina Gonçalves-
Autor(es): dc.creatorRodrigues, Luiz Carlos de Almeida-
Autor(es): dc.creatorCastro, Evaristo Mauro de-
Autor(es): dc.creatorCorrêa, Felipe Fogaroli-
Autor(es): dc.creatorPereira, Fabricio José-
Data de aceite: dc.date.accessioned2026-02-09T12:15:21Z-
Data de disponibilização: dc.date.available2026-02-09T12:15:21Z-
Data de envio: dc.date.issued2018-02-20-
Data de envio: dc.date.issued2018-02-20-
Data de envio: dc.date.issued2015-04-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/28589-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0304377015000108#!-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1157633-
Descrição: dc.descriptionCattail (Typha domingensis Pers.) can show intense growth depending on phosphorus (P) eutrophication. We verify how P enrichment and deficiency influence T. domingensis growth and the relationship with anatomical and physiological modifications. Vegetative T. domingensis plants were grown for 60 days in a modified nutrient solution in five P levels: 0, 0.20, 0.40, 0.60 and 0.80 mM. Plant growth was evaluated at the end of the experiment. Leaf fragments were collected and fixed in F.A.A.70 and sectioned in bench-top microtome. Sections were stained with safrablau solution, mounted in slides and photographed with an optical microscope. Images were evaluated in UTHSCSA-Imagetool software which was used to measure leaf tissues. Leaf gas exchanges were evaluated 30 and 60 days after the experiment started. The data were submitted to one-way ANOVA and regression analyses or means were compared using the Scott–Knott test. Plants showed more growth in a P-rich nutrient solution. T. domingensis showed different biomass partitioning under P levels, with an increasing leaf biomass allocation for higher P levels and a lower rhizome investment. For higher P levels, plants showed increased photosynthesis, stomatal conductances and transpiratory rates. However, the highest concentration promoted a decrease in these characteristics. The leaves of T. domingensis showed larger stomata, thicker palisade parenchyma and an increased phloem proportion under higher P levels. Our results suggest that the increased growth of T. domingensis in P-rich conditions may be related to increased photosynthesis; this characteristic is limited to anatomical traits such as palisade parenchyma and stomatal modifications.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceAquatic Botany-
Palavras-chave: dc.subjectPlants – Effect of phosphorus – Statistical methods-
Palavras-chave: dc.subjectPlants – Physiology-
Palavras-chave: dc.subjectPlantas – Efeito do fósforo – Métodos estatísticos-
Palavras-chave: dc.subjectPlantas – Fisiologia-
Palavras-chave: dc.subjectTypha domingensis-
Título: dc.titleTypha domingensis Pers. growth responses to leaf anatomy and photosynthesis as influenced by phosphorus-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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