Morphophysiological responses of Setaria viridis to cold stress
Abstract The objective of this work was to determine the suitability of Setaria viridis as a model plant in studies to validate candidate genes for cold tolerance by evaluating the response of two of its accessions to different durations of abrupt or gradual cold stress in the vegetative and reprodu...
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| Format: | Article |
| Language: | English |
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Embrapa Informação Tecnológica
2022-08-01
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| Series: | Pesquisa Agropecuária Brasileira |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2022000102302&lng=en&tlng=en |
| _version_ | 1798037102644953088 |
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| author | Calil Gibran Iraiore Carvalho Mariana de Lima Santos Letícia Rios Vieira Amanda Moreira Lopes Paula Andrea Osorio Carmona Carlos Antonio Ferreira de Sousa Manoel Teixeira Souza Junior |
| author_facet | Calil Gibran Iraiore Carvalho Mariana de Lima Santos Letícia Rios Vieira Amanda Moreira Lopes Paula Andrea Osorio Carmona Carlos Antonio Ferreira de Sousa Manoel Teixeira Souza Junior |
| author_sort | Calil Gibran Iraiore Carvalho |
| collection | DOAJ |
| description | Abstract The objective of this work was to determine the suitability of Setaria viridis as a model plant in studies to validate candidate genes for cold tolerance by evaluating the response of two of its accessions to different durations of abrupt or gradual cold stress in the vegetative and reproductive stages. Plants of accessions A10.1 and Ast-1, cultivated at 25°C, were subjected to the following cold stress treatments: gradual reduction in temperature from 25 to 0°C, 5°C at a time, every 24 hours in a same chamber; or abrupt reduction in temperature, by transferring plants from a chamber at 25°C to another at 0°C. Plants were kept at 0°C for 3, 5, or 10 days, after which temperature was increased back again to 25°C; a control group remained at 25ºC. Low temperatures – reduced abruptly or gradually – caused a decrease in the gas exchange rates and shoot and root biomass of the plants, besides damage to their photochemical apparatus; the longer the cold lasted, the more pronounced the effect was. Regardless of stress duration, plants recovered and completed their life cycle. The studied accessions are tolerant to cold and, therefore, are not suitable as a model plant in studies to validate candidate genes for cold tolerance. |
| first_indexed | 2024-04-11T21:22:01Z |
| format | Article |
| id | doaj.art-304e5202d62e4fa8a2269df334fb9cd8 |
| institution | Directory Open Access Journal |
| issn | 1678-3921 |
| language | English |
| last_indexed | 2024-04-11T21:22:01Z |
| publishDate | 2022-08-01 |
| publisher | Embrapa Informação Tecnológica |
| record_format | Article |
| series | Pesquisa Agropecuária Brasileira |
| spelling | doaj.art-304e5202d62e4fa8a2269df334fb9cd82022-12-22T04:02:35ZengEmbrapa Informação TecnológicaPesquisa Agropecuária Brasileira1678-39212022-08-015710.1590/s1678-3921.pab2022.v57.02424Morphophysiological responses of Setaria viridis to cold stressCalil Gibran Iraiore Carvalhohttps://orcid.org/0000-0001-9617-685XMariana de Lima Santoshttps://orcid.org/0000-0003-0642-2696Letícia Rios Vieirahttps://orcid.org/0000-0002-8948-6240Amanda Moreira Lopeshttps://orcid.org/0000-0001-8568-6969Paula Andrea Osorio Carmonahttps://orcid.org/0000-0002-7519-3703Carlos Antonio Ferreira de Sousahttps://orcid.org/0000-0003-3497-0761Manoel Teixeira Souza Juniorhttps://orcid.org/0000-0002-6590-9333Abstract The objective of this work was to determine the suitability of Setaria viridis as a model plant in studies to validate candidate genes for cold tolerance by evaluating the response of two of its accessions to different durations of abrupt or gradual cold stress in the vegetative and reproductive stages. Plants of accessions A10.1 and Ast-1, cultivated at 25°C, were subjected to the following cold stress treatments: gradual reduction in temperature from 25 to 0°C, 5°C at a time, every 24 hours in a same chamber; or abrupt reduction in temperature, by transferring plants from a chamber at 25°C to another at 0°C. Plants were kept at 0°C for 3, 5, or 10 days, after which temperature was increased back again to 25°C; a control group remained at 25ºC. Low temperatures – reduced abruptly or gradually – caused a decrease in the gas exchange rates and shoot and root biomass of the plants, besides damage to their photochemical apparatus; the longer the cold lasted, the more pronounced the effect was. Regardless of stress duration, plants recovered and completed their life cycle. The studied accessions are tolerant to cold and, therefore, are not suitable as a model plant in studies to validate candidate genes for cold tolerance.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2022000102302&lng=en&tlng=enabiotic stressflorescencegas exchangemodel plantphenomicsrecoverytolerance |
| spellingShingle | Calil Gibran Iraiore Carvalho Mariana de Lima Santos Letícia Rios Vieira Amanda Moreira Lopes Paula Andrea Osorio Carmona Carlos Antonio Ferreira de Sousa Manoel Teixeira Souza Junior Morphophysiological responses of Setaria viridis to cold stress Pesquisa Agropecuária Brasileira abiotic stress florescence gas exchange model plant phenomics recovery tolerance |
| title | Morphophysiological responses of Setaria viridis to cold stress |
| title_full | Morphophysiological responses of Setaria viridis to cold stress |
| title_fullStr | Morphophysiological responses of Setaria viridis to cold stress |
| title_full_unstemmed | Morphophysiological responses of Setaria viridis to cold stress |
| title_short | Morphophysiological responses of Setaria viridis to cold stress |
| title_sort | morphophysiological responses of setaria viridis to cold stress |
| topic | abiotic stress florescence gas exchange model plant phenomics recovery tolerance |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2022000102302&lng=en&tlng=en |
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