Cell wall and oxidative metabolisms of ripening ‘Paluma’ guava under potassium fertilization
Guava (Psidium guajava L.) is an important tropical fruit crop, and its nutritional status is directly associated with the quality and postharvest conservation of the fruits. Several agronomic events are involved with changes in the flavor and texture of the fruits, which are associated with the pos...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Journal of Agriculture and Food Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666154323000753 |
| _version_ | 1797823078254772224 |
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| author | Aline Priscilla Gomes da Silva Silvanda de Melo Silva Gerciane Cabral da Silva Maria Auxiliadora Coelho de Lima Rejane Maria Nunes Mendonça Renato Lima Dantas William Gustavo Sganzerla |
| author_facet | Aline Priscilla Gomes da Silva Silvanda de Melo Silva Gerciane Cabral da Silva Maria Auxiliadora Coelho de Lima Rejane Maria Nunes Mendonça Renato Lima Dantas William Gustavo Sganzerla |
| author_sort | Aline Priscilla Gomes da Silva |
| collection | DOAJ |
| description | Guava (Psidium guajava L.) is an important tropical fruit crop, and its nutritional status is directly associated with the quality and postharvest conservation of the fruits. Several agronomic events are involved with changes in the flavor and texture of the fruits, which are associated with the postharvest delay of fruit maturation, especially cell wall loosening. In this study, ‘Paluma’ guava trees were treated with three doses of potassium fertilization (50 [producer dose - control], 100, and 150 g K2O plant−1) during the phenological phase of fruit growth, and the fruits were evaluated in three maturity stages (green yellow, yellow greenish, and yellow). The completely randomized design and fruits from three plants were used as replicates per treatment. The fruits were evaluated by the changes in pectin content and cell wall enzyme activity (pectin methylesterase and polygalacturonase) and oxidative metabolism enzymes (polyphenoloxidase and peroxidase activity). The results demonstrate that fruits from plants fertilized with 100 g K2O plant−1 were firmer (59.24 N), in which the yellow-greenish stage presented higher total (3.69%) and insoluble pectin (2.58%) contents. Furthermore, fruits at yellow-greenish stage presented lower pectin methylesterase (370.9 mU g−1 FW) and polygalacturonase (110.1 mU g−1 FW) cell wall enzyme activity, reflecting the better resistance of the cell wall and possibly longer postharvest life. As a practical application, the use of 100 g of K2O plant−1 during production and harvesting of “Paluma” guava at the yellow-greenish stage can maintain fruit firmness, improve quality, and reduce postharvest losses. |
| first_indexed | 2024-03-13T10:18:41Z |
| format | Article |
| id | doaj.art-4eaecb4b7e7b405284d829070893ee34 |
| institution | Directory Open Access Journal |
| issn | 2666-1543 |
| language | English |
| last_indexed | 2024-03-13T10:18:41Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Agriculture and Food Research |
| spelling | doaj.art-4eaecb4b7e7b405284d829070893ee342023-05-21T04:35:42ZengElsevierJournal of Agriculture and Food Research2666-15432023-06-0112100568Cell wall and oxidative metabolisms of ripening ‘Paluma’ guava under potassium fertilizationAline Priscilla Gomes da Silva0Silvanda de Melo Silva1Gerciane Cabral da Silva2Maria Auxiliadora Coelho de Lima3Rejane Maria Nunes Mendonça4Renato Lima Dantas5William Gustavo Sganzerla6Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI, USA; Corresponding author. 469 Wilson Rd., East Lansing, MI, 48824, USA.Department of Chemistry and Physics, Federal University of Paraíba, Areia, PB, Brazil; Corresponding author. Department of Chemistry and Physics, Areia, PB, 58397-970, Brazil.State Agricultural Research Corporation, Joao Pessoa, PB, BrazilBrazilian Agricultural Research Corporation, Petrolina, PE, BrazilGraduate Program in Agronomy, Federal University of Paraíba, Areia, PB, BrazilGraduate Program in Agronomy, Federal University of Paraíba, Areia, PB, BrazilUniversity of Campinas (UNICAMP), School of Food Engineering (FEA), Campinas, SP, BrazilGuava (Psidium guajava L.) is an important tropical fruit crop, and its nutritional status is directly associated with the quality and postharvest conservation of the fruits. Several agronomic events are involved with changes in the flavor and texture of the fruits, which are associated with the postharvest delay of fruit maturation, especially cell wall loosening. In this study, ‘Paluma’ guava trees were treated with three doses of potassium fertilization (50 [producer dose - control], 100, and 150 g K2O plant−1) during the phenological phase of fruit growth, and the fruits were evaluated in three maturity stages (green yellow, yellow greenish, and yellow). The completely randomized design and fruits from three plants were used as replicates per treatment. The fruits were evaluated by the changes in pectin content and cell wall enzyme activity (pectin methylesterase and polygalacturonase) and oxidative metabolism enzymes (polyphenoloxidase and peroxidase activity). The results demonstrate that fruits from plants fertilized with 100 g K2O plant−1 were firmer (59.24 N), in which the yellow-greenish stage presented higher total (3.69%) and insoluble pectin (2.58%) contents. Furthermore, fruits at yellow-greenish stage presented lower pectin methylesterase (370.9 mU g−1 FW) and polygalacturonase (110.1 mU g−1 FW) cell wall enzyme activity, reflecting the better resistance of the cell wall and possibly longer postharvest life. As a practical application, the use of 100 g of K2O plant−1 during production and harvesting of “Paluma” guava at the yellow-greenish stage can maintain fruit firmness, improve quality, and reduce postharvest losses.http://www.sciencedirect.com/science/article/pii/S2666154323000753Psidium guajavaMineral nutritionMaturity stagesQualityFruit softeningOxidative metabolism |
| spellingShingle | Aline Priscilla Gomes da Silva Silvanda de Melo Silva Gerciane Cabral da Silva Maria Auxiliadora Coelho de Lima Rejane Maria Nunes Mendonça Renato Lima Dantas William Gustavo Sganzerla Cell wall and oxidative metabolisms of ripening ‘Paluma’ guava under potassium fertilization Journal of Agriculture and Food Research Psidium guajava Mineral nutrition Maturity stages Quality Fruit softening Oxidative metabolism |
| title | Cell wall and oxidative metabolisms of ripening ‘Paluma’ guava under potassium fertilization |
| title_full | Cell wall and oxidative metabolisms of ripening ‘Paluma’ guava under potassium fertilization |
| title_fullStr | Cell wall and oxidative metabolisms of ripening ‘Paluma’ guava under potassium fertilization |
| title_full_unstemmed | Cell wall and oxidative metabolisms of ripening ‘Paluma’ guava under potassium fertilization |
| title_short | Cell wall and oxidative metabolisms of ripening ‘Paluma’ guava under potassium fertilization |
| title_sort | cell wall and oxidative metabolisms of ripening paluma guava under potassium fertilization |
| topic | Psidium guajava Mineral nutrition Maturity stages Quality Fruit softening Oxidative metabolism |
| url | http://www.sciencedirect.com/science/article/pii/S2666154323000753 |
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