Pigment chromatic adaptation in Cyclotella caspia Grunow (Bacillariophyta)
The diatom Cyclotella caspia Grunow, isolated from surface waters of the Ubatuba region (São Paulo State, Brazil) was submitted to different light spectral distributions for examination of its adaptative response. Growth rate and the photosynthetic pigments chlorophyll a, chlorophyll c, carotenoids...
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
1991-01-01
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| Series: | Brazilian Journal of Oceanography |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591991000200003 |
| _version_ | 1811261719660462080 |
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| author | Donato Seiji Abe Sônia Maria Flores Gianesella-Galvão |
| author_facet | Donato Seiji Abe Sônia Maria Flores Gianesella-Galvão |
| author_sort | Donato Seiji Abe |
| collection | DOAJ |
| description | The diatom Cyclotella caspia Grunow, isolated from surface waters of the Ubatuba region (São Paulo State, Brazil) was submitted to different light spectral distributions for examination of its adaptative response. Growth rate and the photosynthetic pigments chlorophyll a, chlorophyll c, carotenoids and phaeopigments were measured under white, blue and red light of the same intensity (8 and 20 µE.cm-2.s-1). Growth rate increased under blue light while red light increased chl a concentration. The relative proportion of chl a and carotenoids did not change, demonstrating the absence of complementary chromatic adaptation.<br>A diatomácea Cyclotella caspia Grunow, isolada de águas superficiais da região de Ubatuba (Estado de São Paulo, Brasil), foi submetida a diferentes intervalos espectrais de luz com a finalidade de se examinar sua resposta adaptativa. Foram medidos a taxa de crescimento e os pigmentos fotossintéticos clorofila a, clorofila c, carotenóides e feopigmentos, sob luz branca, azul e vermelha de mesmas intensidades (8 e 20 µE.cm-2.s-1). A taxa de crescimento aumentou sob luz azul, sendo que a concentração de clorofila a aumentar sob luz vermelha. A proporção relativa de clα e carotenóides não variou, demonstrando a ausência de adapatação cromática complementar. |
| first_indexed | 2024-04-12T19:10:49Z |
| format | Article |
| id | doaj.art-0f509a7291064427ae53c5d11ebe24e6 |
| institution | Directory Open Access Journal |
| issn | 1679-8759 1982-436X |
| language | English |
| last_indexed | 2024-04-12T19:10:49Z |
| publishDate | 1991-01-01 |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Brazilian Journal of Oceanography |
| spelling | doaj.art-0f509a7291064427ae53c5d11ebe24e62022-12-22T03:19:52ZengUniversidade de São PauloBrazilian Journal of Oceanography1679-87591982-436X1991-01-0139212313010.1590/S1679-87591991000200003Pigment chromatic adaptation in Cyclotella caspia Grunow (Bacillariophyta)Donato Seiji AbeSônia Maria Flores Gianesella-GalvãoThe diatom Cyclotella caspia Grunow, isolated from surface waters of the Ubatuba region (São Paulo State, Brazil) was submitted to different light spectral distributions for examination of its adaptative response. Growth rate and the photosynthetic pigments chlorophyll a, chlorophyll c, carotenoids and phaeopigments were measured under white, blue and red light of the same intensity (8 and 20 µE.cm-2.s-1). Growth rate increased under blue light while red light increased chl a concentration. The relative proportion of chl a and carotenoids did not change, demonstrating the absence of complementary chromatic adaptation.<br>A diatomácea Cyclotella caspia Grunow, isolada de águas superficiais da região de Ubatuba (Estado de São Paulo, Brasil), foi submetida a diferentes intervalos espectrais de luz com a finalidade de se examinar sua resposta adaptativa. Foram medidos a taxa de crescimento e os pigmentos fotossintéticos clorofila a, clorofila c, carotenóides e feopigmentos, sob luz branca, azul e vermelha de mesmas intensidades (8 e 20 µE.cm-2.s-1). A taxa de crescimento aumentou sob luz azul, sendo que a concentração de clorofila a aumentar sob luz vermelha. A proporção relativa de clα e carotenóides não variou, demonstrando a ausência de adapatação cromática complementar.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591991000200003FitoplânctonPigmentos fotossintéticosAdaptações cromáticasEfeitos da luzCrescimentoClorofilasCarotenoidesCyclotella caspiaPhytoplanktonPhotosynthetic pigmentsChromatic adaptationlight effectsGrowthChlorophyllsCarotenoidsCyclotella caspia |
| spellingShingle | Donato Seiji Abe Sônia Maria Flores Gianesella-Galvão Pigment chromatic adaptation in Cyclotella caspia Grunow (Bacillariophyta) Brazilian Journal of Oceanography Fitoplâncton Pigmentos fotossintéticos Adaptações cromáticas Efeitos da luz Crescimento Clorofilas Carotenoides Cyclotella caspia Phytoplankton Photosynthetic pigments Chromatic adaptation light effects Growth Chlorophylls Carotenoids Cyclotella caspia |
| title | Pigment chromatic adaptation in Cyclotella caspia Grunow (Bacillariophyta) |
| title_full | Pigment chromatic adaptation in Cyclotella caspia Grunow (Bacillariophyta) |
| title_fullStr | Pigment chromatic adaptation in Cyclotella caspia Grunow (Bacillariophyta) |
| title_full_unstemmed | Pigment chromatic adaptation in Cyclotella caspia Grunow (Bacillariophyta) |
| title_short | Pigment chromatic adaptation in Cyclotella caspia Grunow (Bacillariophyta) |
| title_sort | pigment chromatic adaptation in cyclotella caspia grunow bacillariophyta |
| topic | Fitoplâncton Pigmentos fotossintéticos Adaptações cromáticas Efeitos da luz Crescimento Clorofilas Carotenoides Cyclotella caspia Phytoplankton Photosynthetic pigments Chromatic adaptation light effects Growth Chlorophylls Carotenoids Cyclotella caspia |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591991000200003 |
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