Photosynthesis, biochemical activity, and leaf anatomy of tree tomato (Solanum betaceum Cav.) plants under potassium deficiency
The effects of potassium (K) deficiency on the physiological, bio-chemical, and anatomical parameters of leaves in the tree tomato plants (Solanum betaceum Cav.) were evaluated during vegetative growth. The experiment was carried out for 135 days after treatment applications under greenhouse conditi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Julius Kühn-Institut
2021-05-01
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| Series: | Journal of Applied Botany and Food Quality |
| Online Access: | https://ojs.openagrar.de/index.php/JABFQ/article/view/15777 |
| _version_ | 1818891531609702400 |
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| author | Claudia Helena Ramirez Soler Stanislav Magnitskiy Sandra Esperanza Melo Martínez Fagua Álvarez Flórez Luz Marina Melgarejo Muñoz |
| author_facet | Claudia Helena Ramirez Soler Stanislav Magnitskiy Sandra Esperanza Melo Martínez Fagua Álvarez Flórez Luz Marina Melgarejo Muñoz |
| author_sort | Claudia Helena Ramirez Soler |
| collection | DOAJ |
| description | The effects of potassium (K) deficiency on the physiological, bio-chemical, and anatomical parameters of leaves in the tree tomato plants (Solanum betaceum Cav.) were evaluated during vegetative growth. The experiment was carried out for 135 days after treatment applications under greenhouse conditions, employing the nutrient solutions with the following treatments: control plants (without K de-ficiency) and the plants with K deficiency. The light response curve, photosynthesis at light saturation (Amax), light compensation point (Ic), transpiration rate (E), stomatal resistance (SR), and pigment contents in leaves were evaluated. Additionally, the maximum photochemical efficiency of PSII (Fv/Fm), contents of malondialdehyde (MDA), total soluble sugars, proline, and leaf anatomy parameters were assessed.
In the K-deficient plants, the reduction in Amax (66%), Ic (63.7%), E (66%), Fv/Fm (17.3%), contents of total chlorophyll (77.4%) and chlorophyll a (52%), thickness of leaf blade L (28.5%), palisade parenchyma PP (6.5%), and spongy parenchyma SP (9.5%) were observed, compared to the control plants. In contrast, the variables that increased significantly were SR (65%), MDA (52%), Upper epidermis thickness (Ue) (27.1%), and Lower epidermis thickness (Le) (22.3%). The potassium deficiency caused alterations in the plant development due to the influence on physiological, biochemical, and anatomical parameters, which suggests the importance of mineral nutrition with K for this plant. |
| first_indexed | 2024-12-19T17:42:18Z |
| format | Article |
| id | doaj.art-2ba5a3570131411e8ff334e1ffe4be56 |
| institution | Directory Open Access Journal |
| issn | 1613-9216 1439-040X |
| language | English |
| last_indexed | 2024-12-19T17:42:18Z |
| publishDate | 2021-05-01 |
| publisher | Julius Kühn-Institut |
| record_format | Article |
| series | Journal of Applied Botany and Food Quality |
| spelling | doaj.art-2ba5a3570131411e8ff334e1ffe4be562022-12-21T20:12:11ZengJulius Kühn-InstitutJournal of Applied Botany and Food Quality1613-92161439-040X2021-05-019410.5073/JABFQ.2021.094.009Photosynthesis, biochemical activity, and leaf anatomy of tree tomato (Solanum betaceum Cav.) plants under potassium deficiencyClaudia Helena Ramirez Soler0Stanislav Magnitskiy1Sandra Esperanza Melo Martínez2Fagua Álvarez Flórez3Luz Marina Melgarejo Muñoz4Facultad de Ciencias, Departamento de Biología, Laboratorio de Fisiología y Bioquímica vegetal. Universidad Nacional de Colombia, Bogotá, ColombiaFacultad de Ciencias Agrarias, Departamento de Agronomía. Universidad Nacional de Colombia, Bogotá, ColombiaFacultad de Ciencias Agrarias, Departamento de Agronomía. Universidad Nacional de Colombia, Bogotá, ColombiaFacultad de Ciencias, Departamento de Biología, Laboratorio de Fisiología y Bioquímica vegetal. Universidad Nacional de Colombia, Bogotá, ColombiaFacultad de Ciencias, Departamento de Biología, Laboratorio de Fisiología y Bioquímica vegetal. Universidad Nacional de Colombia, Bogotá, ColombiaThe effects of potassium (K) deficiency on the physiological, bio-chemical, and anatomical parameters of leaves in the tree tomato plants (Solanum betaceum Cav.) were evaluated during vegetative growth. The experiment was carried out for 135 days after treatment applications under greenhouse conditions, employing the nutrient solutions with the following treatments: control plants (without K de-ficiency) and the plants with K deficiency. The light response curve, photosynthesis at light saturation (Amax), light compensation point (Ic), transpiration rate (E), stomatal resistance (SR), and pigment contents in leaves were evaluated. Additionally, the maximum photochemical efficiency of PSII (Fv/Fm), contents of malondialdehyde (MDA), total soluble sugars, proline, and leaf anatomy parameters were assessed. In the K-deficient plants, the reduction in Amax (66%), Ic (63.7%), E (66%), Fv/Fm (17.3%), contents of total chlorophyll (77.4%) and chlorophyll a (52%), thickness of leaf blade L (28.5%), palisade parenchyma PP (6.5%), and spongy parenchyma SP (9.5%) were observed, compared to the control plants. In contrast, the variables that increased significantly were SR (65%), MDA (52%), Upper epidermis thickness (Ue) (27.1%), and Lower epidermis thickness (Le) (22.3%). The potassium deficiency caused alterations in the plant development due to the influence on physiological, biochemical, and anatomical parameters, which suggests the importance of mineral nutrition with K for this plant.https://ojs.openagrar.de/index.php/JABFQ/article/view/15777 |
| spellingShingle | Claudia Helena Ramirez Soler Stanislav Magnitskiy Sandra Esperanza Melo Martínez Fagua Álvarez Flórez Luz Marina Melgarejo Muñoz Photosynthesis, biochemical activity, and leaf anatomy of tree tomato (Solanum betaceum Cav.) plants under potassium deficiency Journal of Applied Botany and Food Quality |
| title | Photosynthesis, biochemical activity, and leaf anatomy of tree tomato (Solanum betaceum Cav.) plants under potassium deficiency |
| title_full | Photosynthesis, biochemical activity, and leaf anatomy of tree tomato (Solanum betaceum Cav.) plants under potassium deficiency |
| title_fullStr | Photosynthesis, biochemical activity, and leaf anatomy of tree tomato (Solanum betaceum Cav.) plants under potassium deficiency |
| title_full_unstemmed | Photosynthesis, biochemical activity, and leaf anatomy of tree tomato (Solanum betaceum Cav.) plants under potassium deficiency |
| title_short | Photosynthesis, biochemical activity, and leaf anatomy of tree tomato (Solanum betaceum Cav.) plants under potassium deficiency |
| title_sort | photosynthesis biochemical activity and leaf anatomy of tree tomato solanum betaceum cav plants under potassium deficiency |
| url | https://ojs.openagrar.de/index.php/JABFQ/article/view/15777 |
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