دورية أكاديمية
Effects of salinity on the physiology of Salvinia auriculata Aubl. (Salviniales, Pteridophyta) ; Efeitos da salinidade na fisiologia de Salvinia auriculata Aubl. (Salviniales, Pteridophyta)
| العنوان: | Effects of salinity on the physiology of Salvinia auriculata Aubl. (Salviniales, Pteridophyta) ; Efeitos da salinidade na fisiologia de Salvinia auriculata Aubl. (Salviniales, Pteridophyta) |
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| المؤلفون: | Barufi, José Bonomi, Carvalho, Vanessa Freire, Scherner, Fernando, Xavier, Leonardo Rafael Chaves Coelho, Moura-Junior, Edson Gomes, Costa, Manoel Messias da Silva, Hsie, Bety Shiue, Araújo, Micheline Kézia Cordeiro, Alves, Maria Claudjane Jerônimo Leite, Melo, Gemima Manço, Castro, Natália Maria Corte Real, Burgos, Douglas Correia, Dias, André Luis de França, Arruda-Queiróz, Patrícia Campus, Pereira, Sonia Maria Barreto |
| المصدر: | Biotemas; v. 30 n. 3 (2017); 25-36 ; 2175-7925 ; 0103-1643 |
| بيانات النشر: | Universidade Federal de Santa Catarina |
| سنة النشر: | 2017 |
| المجموعة: | Portal de Periódicos UFSC (Universidade Federal de Santa Catarina) |
| الوصف: | Salvinia auriculata Aubl. is reported to occur in different zones of the Capibaribe River, Pernambuco State, Brazil. This river varies in salinity in different areas. This study evaluated the growth, photosynthesis and pigment contents of S. auriculata at different salinity levels. Plant sections were collected in the Cursaí Reservoir, located in the municipality of Paudalho, Pernambuco, and were brought to a greenhouse, where they were put in glass flasks filled with 250 mL of liquid, placed on benches. The plants were exposed for 40 h to salinity levels of 0, 17 and 34, obtained with reservoir freshwater, 1:1 freshwater:seawater and pure seawater, respectively. At the end of the experimental period, the plants in salt water showed color changes, with brownish leaves. In addition, plant growth rates decreased. Salinity and time had a negative influence on photosynthetic responses such as Fv/Fm, ETRmax and ETR, which showed reductions under the highest salinity treatment. Response patterns may help to explain S. auriculata occurrence, and its distribution can be regulated by salinity. ; A macrófita aquática Salvinia auriculata Aubl. ocorre em diferentes regiões do Rio Capibaribe, no estado de Pernambuco, Brasil. Esse rio desemboca no mar e, consequentemente, apresenta setores com diferentes gradientes de salinidade. Este trabalho avaliou a fotossíntese, o crescimento e o teor de pigmentos fotossintetizantes de S. auriculata frente a um gradiente de salinidade. As plantas foram obtidas em um reservatório no município de Paudalho e foram levadas à casa de vegetação, onde foram mantidas em frascos de vidro contendo 250 mL de volume preenchido, posicionados em bancadas durante 40 h nas seguintes condições de salinidade: 0, 17 e 34, obtidas com água doce, mistura de água doce e salgada e água salgada, respectivamente. Ao final, as folhas das plantas tratadas com água salgada apresentaram mudança na coloração (de verde para marrom) e também as plantas tiveram redução no seu crescimento. A salinidade e o tempo ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2017v30n3p25/34622Test; https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2017v30n3p25Test |
| DOI: | 10.5007/2175-7925.2017v30n3p25 |
| الإتاحة: | https://doi.org/10.5007/2175-7925.2017v30n3p25Test https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2017v30n3p25Test |
| حقوق: | Copyright (c) 2017 José Bonomi Barufi, Vanessa Freire Carvalho, Fernando Scherner, Leonardo Rafael Chaves Coelho Xavier, Edson Gomes Moura-Junior, Manoel Messias da Silva Costa, Bety Shiue Hsie, Micheline Kézia Cordeiro Araújo, Maria Claudjane Jerônimo Leite Alves, Gemima Manço Melo, Natália Maria Corte Real Castro, Douglas Correia Burgos, André Luis de França Dias, Patrícia Campus Arruda-Queiróz, Sonia Maria Barreto Pereira |
| رقم الانضمام: | edsbas.5D4A7DE0 |
| قاعدة البيانات: | BASE |
| DOI: | 10.5007/2175-7925.2017v30n3p25 |
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