Phosphorus and Carbohydrate Metabolism in Green Bean Plants Subjected to Increasing Phosphorus Concentration in the Nutrient Solution
Phosphorus (P) is considered an elementary mineral nutrient for plants. Nevertheless, excessive or deficit supply to the crop may cause negative changes at the physiological level. Plants were cultivated in pots in a growth chamber under increasing P concentration (P<sub>1</sub> (0.5 mmo...
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MDPI AG
2021-01-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/11/2/245 |
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| author | Pedro García-Caparrós María Teresa Lao Pablo Preciado-Rangel Esteban Sanchez |
| author_facet | Pedro García-Caparrós María Teresa Lao Pablo Preciado-Rangel Esteban Sanchez |
| author_sort | Pedro García-Caparrós |
| collection | DOAJ |
| description | Phosphorus (P) is considered an elementary mineral nutrient for plants. Nevertheless, excessive or deficit supply to the crop may cause negative changes at the physiological level. Plants were cultivated in pots in a growth chamber under increasing P concentration (P<sub>1</sub> (0.5 mmol/L (control treatment)), P<sub>2</sub> (1 mmol/L); P<sub>3</sub> (2 mmol/L); P<sub>4</sub> (4 mmol/L); P<sub>5</sub> (6 mmol/L), and P<sub>6</sub> (8 mmol/L)) in the nutrient solution for 40 days. At the end of the experimental period, biomass, carbohydrates concentration, and enzymatic activities related to the synthesis and degradation of sucrose as well as the different fractions of P in different organs of the plant were assessed. The results obtained in this experiment reveal a decrease in biomass under increasing P supply. Fructose, glucose, sucrose, and starch concentrations were higher in the shoots compared to the roots. There were different trends in the roots and shoots in enzymatic activities related to sucrose. The increase in P dose increased the concentration of the different forms assessed for P in all the organs studied. Seed phytate concentration surpassed the threshold established by the Food and Agriculture Organization (FAO) for green bean plants grown under P<sub>4</sub>, P<sub>5</sub>, and P<sub>6</sub> treatments. Considering the results obtained, we suggest fertigation with a concentration of 2 mmol/L to obtain a higher productivity without excess of phytate in seeds. |
| first_indexed | 2024-03-09T03:22:23Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T03:22:23Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-50ba1b9b8b634a24a1fe2ef00bf2a6c32023-12-03T15:07:44ZengMDPI AGAgronomy2073-43952021-01-0111224510.3390/agronomy11020245Phosphorus and Carbohydrate Metabolism in Green Bean Plants Subjected to Increasing Phosphorus Concentration in the Nutrient SolutionPedro García-Caparrós0María Teresa Lao1Pablo Preciado-Rangel2Esteban Sanchez3Department of Superior School Engineering, University of Almeria, CIAIMBITAL, Agrifood Campus of International Excellence ceiA3. Ctra. Sacramento s/n, La Cañada de San Urbano, 04120 Almería, SpainDepartment of Superior School Engineering, University of Almeria, CIAIMBITAL, Agrifood Campus of International Excellence ceiA3. Ctra. Sacramento s/n, La Cañada de San Urbano, 04120 Almería, SpainNational Technological Institute of México—Technological Institute of Torreón (ITT), 22710 Torreón, Coahuila, MexicoCenter for Research in Food and Development A.C., 33086 Delicias, Chihuahua, MexicoPhosphorus (P) is considered an elementary mineral nutrient for plants. Nevertheless, excessive or deficit supply to the crop may cause negative changes at the physiological level. Plants were cultivated in pots in a growth chamber under increasing P concentration (P<sub>1</sub> (0.5 mmol/L (control treatment)), P<sub>2</sub> (1 mmol/L); P<sub>3</sub> (2 mmol/L); P<sub>4</sub> (4 mmol/L); P<sub>5</sub> (6 mmol/L), and P<sub>6</sub> (8 mmol/L)) in the nutrient solution for 40 days. At the end of the experimental period, biomass, carbohydrates concentration, and enzymatic activities related to the synthesis and degradation of sucrose as well as the different fractions of P in different organs of the plant were assessed. The results obtained in this experiment reveal a decrease in biomass under increasing P supply. Fructose, glucose, sucrose, and starch concentrations were higher in the shoots compared to the roots. There were different trends in the roots and shoots in enzymatic activities related to sucrose. The increase in P dose increased the concentration of the different forms assessed for P in all the organs studied. Seed phytate concentration surpassed the threshold established by the Food and Agriculture Organization (FAO) for green bean plants grown under P<sub>4</sub>, P<sub>5</sub>, and P<sub>6</sub> treatments. Considering the results obtained, we suggest fertigation with a concentration of 2 mmol/L to obtain a higher productivity without excess of phytate in seeds.https://www.mdpi.com/2073-4395/11/2/245acid phosphatase activityfructose 1,6-biphosphataseinvertaseslipidic-Pphytatesucrose |
| spellingShingle | Pedro García-Caparrós María Teresa Lao Pablo Preciado-Rangel Esteban Sanchez Phosphorus and Carbohydrate Metabolism in Green Bean Plants Subjected to Increasing Phosphorus Concentration in the Nutrient Solution Agronomy acid phosphatase activity fructose 1,6-biphosphatase invertases lipidic-P phytate sucrose |
| title | Phosphorus and Carbohydrate Metabolism in Green Bean Plants Subjected to Increasing Phosphorus Concentration in the Nutrient Solution |
| title_full | Phosphorus and Carbohydrate Metabolism in Green Bean Plants Subjected to Increasing Phosphorus Concentration in the Nutrient Solution |
| title_fullStr | Phosphorus and Carbohydrate Metabolism in Green Bean Plants Subjected to Increasing Phosphorus Concentration in the Nutrient Solution |
| title_full_unstemmed | Phosphorus and Carbohydrate Metabolism in Green Bean Plants Subjected to Increasing Phosphorus Concentration in the Nutrient Solution |
| title_short | Phosphorus and Carbohydrate Metabolism in Green Bean Plants Subjected to Increasing Phosphorus Concentration in the Nutrient Solution |
| title_sort | phosphorus and carbohydrate metabolism in green bean plants subjected to increasing phosphorus concentration in the nutrient solution |
| topic | acid phosphatase activity fructose 1,6-biphosphatase invertases lipidic-P phytate sucrose |
| url | https://www.mdpi.com/2073-4395/11/2/245 |
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