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Huang H, Tan P, Li M, Tan Q, Gao J, Bao X, Fan S, Mo T, Mao W, Lin F, Han L, Zhang D, Lin J. Quality analysis combined with mass spectrometry imaging reveal the difference between wild and cultivated Phyllanthus emblica Linn.: From chemical composition to molecular mechanism. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103790] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Morris P, Carter EB, Hauck B, Hughes JW, Allison G, Theodorou MK. Responses of Lotus corniculatus to environmental change. 4: Root carbohydrate levels at defoliation and regrowth climatic conditions are major drivers of phenolic content and forage quality. PLANTA 2021; 253:38. [PMID: 33464416 DOI: 10.1007/s00425-020-03523-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Differential accumulation of root carbohydrates at defoliation have a higher impact than regrowth environmental conditions on the phenolic content and feed quality of the perennial forage legume Lotus corniculatus. The unpredictable nature of proanthocyanidin (condensed tannin) accumulation in regrowth vegetation of the perennial forage legume Lotus corniculatus represents a dilemma to the wider use of this species in agriculture, and a potential problem in the nutritional ecology of some terrestrial herbivores, as variable condensed tannin levels can result in either beneficial or detrimental effects on animal nutrition. However, the source of this variation has not been extensively explored. High levels of carbon allocation to roots during low-temperature preconditioning of clonal plants were found to significantly increase condensed tannin and flavonol levels in regrowth foliage, while low levels of carbon allocation to roots during periods of high-temperature preconditioning significantly decreased condensed tannin and flavonol levels. Phenolic accumulation and tissue digestibility were also differentially affected by regrowth of these defoliated plants at high CO2 concentrations and by drought. Lower rates of digestion generally paralleled increases in tannin levels in regrowth leaves under the different environmental conditions, with rates of digestion falling in high tannin plants, despite correspondingly higher levels of leaf carbohydrates. Differential accumulation of root carbohydrates between seasons and years may therefore explain some of the variability found in the nutritional quality of the forage of this species.
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Affiliation(s)
- Phillip Morris
- Institute of Grassland and Environmental Research, Plas Gogerddan, Ceredigion, Aberystwyth, SY23 3EB, UK.
| | - Eunice B Carter
- Institute of Grassland and Environmental Research, Plas Gogerddan, Ceredigion, Aberystwyth, SY23 3EB, UK
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Plas Gogerddan, Aberystwyth Ceredigion, SY23 3EB, UK
| | - Barbara Hauck
- Institute of Grassland and Environmental Research, Plas Gogerddan, Ceredigion, Aberystwyth, SY23 3EB, UK
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Plas Gogerddan, Aberystwyth Ceredigion, SY23 3EB, UK
| | - John-Wayne Hughes
- Institute of Grassland and Environmental Research, Plas Gogerddan, Ceredigion, Aberystwyth, SY23 3EB, UK
| | - Gordon Allison
- Institute of Grassland and Environmental Research, Plas Gogerddan, Ceredigion, Aberystwyth, SY23 3EB, UK
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Plas Gogerddan, Aberystwyth Ceredigion, SY23 3EB, UK
| | - Michael K Theodorou
- Institute of Grassland and Environmental Research, Plas Gogerddan, Ceredigion, Aberystwyth, SY23 3EB, UK
- Department of Agriculture and Environment, Agriculture Centre for Sustainable Energy Systems, Harper Adams University, Newport, Shropshire, TF10 8NB, UK
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