Ascorbic acid of cowpea seeds under saline stress
Abstract: Salinity adversely affects plant growth and metabolism by triggering increased production of reactive oxygen species (ROS). Ascorbic acid (AsA) is known to protect organelles and cells against ROS by preventing accumulation. The objective of this study was to study the effects of AsA on co...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Tecnologia de Sementes
2019-12-01
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| Series: | Journal of Seed Science |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372019000400441&tlng=en |
| _version_ | 1819258983732477952 |
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| author | Luma Rayane de Lima Nunes Paloma Rayane Pinheiro Felipe Augusto Sombra Cabral João Batista da Silva Alek Sandro Dutra |
| author_facet | Luma Rayane de Lima Nunes Paloma Rayane Pinheiro Felipe Augusto Sombra Cabral João Batista da Silva Alek Sandro Dutra |
| author_sort | Luma Rayane de Lima Nunes |
| collection | DOAJ |
| description | Abstract: Salinity adversely affects plant growth and metabolism by triggering increased production of reactive oxygen species (ROS). Ascorbic acid (AsA) is known to protect organelles and cells against ROS by preventing accumulation. The objective of this study was to study the effects of AsA on cowpea beans under saline stress. Cowpea seeds of the cultivars (BRS Marataoã and Setentão) were conditioned at concentrations of 0.0 (control); 0.25; 0.50; 0.75 and 1.00 mM AsA and seeded on paper towels, moistened at saline levels of 0.0 (control); 1.5; 3.0; 4.5; 6.0 and 7.5 dS.m-1, packed in a bench germinator at 25 °C. The statistical design adopted was a completely randomized 2 × 5 × 6 factorial design (cultivar x ascorbic acid x saline levels) with four replicates of 50 seeds per treatment. The analyzed variables were percentage of germination, first germination count, germination speed index, shoot and root length, total seedling dry weight, and leaf and root electrolyte leakage. Ascorbic acid at concentrations of 0.50 mM for BRS Marataoã and 0.75 mM for the Setentão, enabled the development of more vigorous seedlings and the reduction of membrane damage caused by oxidative stress both in the absence of salt and at the saline levels tested, including the highest one. |
| first_indexed | 2024-12-23T19:02:47Z |
| format | Article |
| id | doaj.art-66f5b2cdb2a641a8be2c555d5ca97fd5 |
| institution | Directory Open Access Journal |
| issn | 2317-1545 |
| language | English |
| last_indexed | 2024-12-23T19:02:47Z |
| publishDate | 2019-12-01 |
| publisher | Associação Brasileira de Tecnologia de Sementes |
| record_format | Article |
| series | Journal of Seed Science |
| spelling | doaj.art-66f5b2cdb2a641a8be2c555d5ca97fd52022-12-21T17:34:41ZengAssociação Brasileira de Tecnologia de SementesJournal of Seed Science2317-15452019-12-0141444145110.1590/2317-1545v41n4222276Ascorbic acid of cowpea seeds under saline stressLuma Rayane de Lima Nuneshttps://orcid.org/0000-0001-7455-7897Paloma Rayane Pinheirohttps://orcid.org/0000-0002-0219-1483Felipe Augusto Sombra Cabralhttps://orcid.org/0000-0002-7564-0059João Batista da Silvahttps://orcid.org/0000-0001-5701-7792Alek Sandro Dutrahttps://orcid.org/0000-0002-4298-383XAbstract: Salinity adversely affects plant growth and metabolism by triggering increased production of reactive oxygen species (ROS). Ascorbic acid (AsA) is known to protect organelles and cells against ROS by preventing accumulation. The objective of this study was to study the effects of AsA on cowpea beans under saline stress. Cowpea seeds of the cultivars (BRS Marataoã and Setentão) were conditioned at concentrations of 0.0 (control); 0.25; 0.50; 0.75 and 1.00 mM AsA and seeded on paper towels, moistened at saline levels of 0.0 (control); 1.5; 3.0; 4.5; 6.0 and 7.5 dS.m-1, packed in a bench germinator at 25 °C. The statistical design adopted was a completely randomized 2 × 5 × 6 factorial design (cultivar x ascorbic acid x saline levels) with four replicates of 50 seeds per treatment. The analyzed variables were percentage of germination, first germination count, germination speed index, shoot and root length, total seedling dry weight, and leaf and root electrolyte leakage. Ascorbic acid at concentrations of 0.50 mM for BRS Marataoã and 0.75 mM for the Setentão, enabled the development of more vigorous seedlings and the reduction of membrane damage caused by oxidative stress both in the absence of salt and at the saline levels tested, including the highest one.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372019000400441&tlng=enVigna unguiculata L.oxidative stressphysiological potentialsalinity |
| spellingShingle | Luma Rayane de Lima Nunes Paloma Rayane Pinheiro Felipe Augusto Sombra Cabral João Batista da Silva Alek Sandro Dutra Ascorbic acid of cowpea seeds under saline stress Journal of Seed Science Vigna unguiculata L. oxidative stress physiological potential salinity |
| title | Ascorbic acid of cowpea seeds under saline stress |
| title_full | Ascorbic acid of cowpea seeds under saline stress |
| title_fullStr | Ascorbic acid of cowpea seeds under saline stress |
| title_full_unstemmed | Ascorbic acid of cowpea seeds under saline stress |
| title_short | Ascorbic acid of cowpea seeds under saline stress |
| title_sort | ascorbic acid of cowpea seeds under saline stress |
| topic | Vigna unguiculata L. oxidative stress physiological potential salinity |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372019000400441&tlng=en |
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