Changes in oxalate composition and other nutritive traits in root tubers and shoots of sweet potato (Ipomoea batatas L. [Lam.]) under water stress
BACKGROUND: The presence of insoluble calcium oxalate druse crystals (CaOx) in sweet potato (Ipomoea batatas) can negatively affect its nutritional quality. Photosynthesis, starch, and protein composition are linked with oxalate synthesis and tuber quality under water scarcity. Our main objective was the oxalate quantitation of sweet potato tubers and shoots and also to assess how drought changes their nutritional value. Eight sweet potato accessions from Madeira, the Canaries and Guinea‐Bissau were analyzed for their response to drought stress. Tubers and shoots were analyzed for total (T‐Ox), soluble (S‐Ox) and insoluble (CaOx) oxalates, protein, chlorophyll content index (CCI), soluble starch, starch swelling power, and starch solubility in water. RESULTS: The S‐Ox and CaOx content was higher in shoots. Six accessions were above maximum CaOx levels for raw consumption. Accessions with more favorable responses to drought had decreased CaOx with S‐Ox increase content for osmoregulation. They also presented slightly decreased CCI and protein contents. These accessions also had an increased shoot starch content, for further tuber storage starch hydrolysis, and maintained the quality and functional properties of the tuber starch grain. Those with a less favorable response to drought had a higher T‐Ox and CaOx content in both organs, hindering water absorption. They also had decreased protein and CCI, with a slight increase in tuber starch hydrolysis. CONCLUSION: Oxalate content was significantly related to carbohydrate metabolism, CCI, and protein synthesis. This study significantly contributed to the screening of the sweet potato stress response to drought, to adapt this crop to climatic change through breeding programs.
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Subjects: | Q04 - Composition des produits alimentaires, F60 - Physiologie et biochimie végétale, F01 - Culture des plantes, Ipomoea batatas, stress dû à la sécheresse, oxalate, amidon, composition des aliments, qualité des aliments, http://aims.fao.org/aos/agrovoc/c_3937, http://aims.fao.org/aos/agrovoc/c_24993, http://aims.fao.org/aos/agrovoc/c_5467, http://aims.fao.org/aos/agrovoc/c_7369, http://aims.fao.org/aos/agrovoc/c_10961, http://aims.fao.org/aos/agrovoc/c_10965, http://aims.fao.org/aos/agrovoc/c_4511, http://aims.fao.org/aos/agrovoc/c_1241, http://aims.fao.org/aos/agrovoc/c_3427, |
Online Access: | http://agritrop.cirad.fr/594783/ http://agritrop.cirad.fr/594783/7/594783-ed.pdf |
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dig-cirad-fr-5947832024-01-29T02:33:03Z http://agritrop.cirad.fr/594783/ http://agritrop.cirad.fr/594783/ Changes in oxalate composition and other nutritive traits in root tubers and shoots of sweet potato (Ipomoea batatas L. [Lam.]) under water stress. Gouveia Carla S.S., Ganança José F.T., Lebot Vincent, Pinheiro de Carvalho Miguel A.A.. 2020. Journal of the Science of Food and Agriculture, 100 : 1702-1710.https://doi.org/10.1002/jsfa.10185 <https://doi.org/10.1002/jsfa.10185> Changes in oxalate composition and other nutritive traits in root tubers and shoots of sweet potato (Ipomoea batatas L. [Lam.]) under water stress Gouveia, Carla S.S. Ganança, José F.T. Lebot, Vincent Pinheiro de Carvalho, Miguel A.A. eng 2020 Journal of the Science of Food and Agriculture Q04 - Composition des produits alimentaires F60 - Physiologie et biochimie végétale F01 - Culture des plantes Ipomoea batatas stress dû à la sécheresse oxalate amidon composition des aliments qualité des aliments http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_5467 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_10965 Madère Canaries (îles) Guinée-Bissau http://aims.fao.org/aos/agrovoc/c_4511 http://aims.fao.org/aos/agrovoc/c_1241 http://aims.fao.org/aos/agrovoc/c_3427 BACKGROUND: The presence of insoluble calcium oxalate druse crystals (CaOx) in sweet potato (Ipomoea batatas) can negatively affect its nutritional quality. Photosynthesis, starch, and protein composition are linked with oxalate synthesis and tuber quality under water scarcity. Our main objective was the oxalate quantitation of sweet potato tubers and shoots and also to assess how drought changes their nutritional value. Eight sweet potato accessions from Madeira, the Canaries and Guinea‐Bissau were analyzed for their response to drought stress. Tubers and shoots were analyzed for total (T‐Ox), soluble (S‐Ox) and insoluble (CaOx) oxalates, protein, chlorophyll content index (CCI), soluble starch, starch swelling power, and starch solubility in water. RESULTS: The S‐Ox and CaOx content was higher in shoots. Six accessions were above maximum CaOx levels for raw consumption. Accessions with more favorable responses to drought had decreased CaOx with S‐Ox increase content for osmoregulation. They also presented slightly decreased CCI and protein contents. These accessions also had an increased shoot starch content, for further tuber storage starch hydrolysis, and maintained the quality and functional properties of the tuber starch grain. Those with a less favorable response to drought had a higher T‐Ox and CaOx content in both organs, hindering water absorption. They also had decreased protein and CCI, with a slight increase in tuber starch hydrolysis. CONCLUSION: Oxalate content was significantly related to carbohydrate metabolism, CCI, and protein synthesis. This study significantly contributed to the screening of the sweet potato stress response to drought, to adapt this crop to climatic change through breeding programs. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/594783/7/594783-ed.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1002/jsfa.10185 10.1002/jsfa.10185 info:eu-repo/semantics/altIdentifier/doi/10.1002/jsfa.10185 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1002/jsfa.10185 info:eu-repo/grantAgreement/ERDF///// info:eu-repo/grantAgreement/EC///// |
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Q04 - Composition des produits alimentaires F60 - Physiologie et biochimie végétale F01 - Culture des plantes Ipomoea batatas stress dû à la sécheresse oxalate amidon composition des aliments qualité des aliments http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_5467 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_10965 http://aims.fao.org/aos/agrovoc/c_4511 http://aims.fao.org/aos/agrovoc/c_1241 http://aims.fao.org/aos/agrovoc/c_3427 Q04 - Composition des produits alimentaires F60 - Physiologie et biochimie végétale F01 - Culture des plantes Ipomoea batatas stress dû à la sécheresse oxalate amidon composition des aliments qualité des aliments http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_5467 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_10965 http://aims.fao.org/aos/agrovoc/c_4511 http://aims.fao.org/aos/agrovoc/c_1241 http://aims.fao.org/aos/agrovoc/c_3427 |
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Q04 - Composition des produits alimentaires F60 - Physiologie et biochimie végétale F01 - Culture des plantes Ipomoea batatas stress dû à la sécheresse oxalate amidon composition des aliments qualité des aliments http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_5467 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_10965 http://aims.fao.org/aos/agrovoc/c_4511 http://aims.fao.org/aos/agrovoc/c_1241 http://aims.fao.org/aos/agrovoc/c_3427 Q04 - Composition des produits alimentaires F60 - Physiologie et biochimie végétale F01 - Culture des plantes Ipomoea batatas stress dû à la sécheresse oxalate amidon composition des aliments qualité des aliments http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_5467 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_10965 http://aims.fao.org/aos/agrovoc/c_4511 http://aims.fao.org/aos/agrovoc/c_1241 http://aims.fao.org/aos/agrovoc/c_3427 Gouveia, Carla S.S. Ganança, José F.T. Lebot, Vincent Pinheiro de Carvalho, Miguel A.A. Changes in oxalate composition and other nutritive traits in root tubers and shoots of sweet potato (Ipomoea batatas L. [Lam.]) under water stress |
description |
BACKGROUND: The presence of insoluble calcium oxalate druse crystals (CaOx) in sweet potato (Ipomoea batatas) can negatively affect its nutritional quality. Photosynthesis, starch, and protein composition are linked with oxalate synthesis and tuber quality under water scarcity. Our main objective was the oxalate quantitation of sweet potato tubers and shoots and also to assess how drought changes their nutritional value. Eight sweet potato accessions from Madeira, the Canaries and Guinea‐Bissau were analyzed for their response to drought stress. Tubers and shoots were analyzed for total (T‐Ox), soluble (S‐Ox) and insoluble (CaOx) oxalates, protein, chlorophyll content index (CCI), soluble starch, starch swelling power, and starch solubility in water. RESULTS: The S‐Ox and CaOx content was higher in shoots. Six accessions were above maximum CaOx levels for raw consumption. Accessions with more favorable responses to drought had decreased CaOx with S‐Ox increase content for osmoregulation. They also presented slightly decreased CCI and protein contents. These accessions also had an increased shoot starch content, for further tuber storage starch hydrolysis, and maintained the quality and functional properties of the tuber starch grain. Those with a less favorable response to drought had a higher T‐Ox and CaOx content in both organs, hindering water absorption. They also had decreased protein and CCI, with a slight increase in tuber starch hydrolysis. CONCLUSION: Oxalate content was significantly related to carbohydrate metabolism, CCI, and protein synthesis. This study significantly contributed to the screening of the sweet potato stress response to drought, to adapt this crop to climatic change through breeding programs. |
format |
article |
topic_facet |
Q04 - Composition des produits alimentaires F60 - Physiologie et biochimie végétale F01 - Culture des plantes Ipomoea batatas stress dû à la sécheresse oxalate amidon composition des aliments qualité des aliments http://aims.fao.org/aos/agrovoc/c_3937 http://aims.fao.org/aos/agrovoc/c_24993 http://aims.fao.org/aos/agrovoc/c_5467 http://aims.fao.org/aos/agrovoc/c_7369 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_10965 http://aims.fao.org/aos/agrovoc/c_4511 http://aims.fao.org/aos/agrovoc/c_1241 http://aims.fao.org/aos/agrovoc/c_3427 |
author |
Gouveia, Carla S.S. Ganança, José F.T. Lebot, Vincent Pinheiro de Carvalho, Miguel A.A. |
author_facet |
Gouveia, Carla S.S. Ganança, José F.T. Lebot, Vincent Pinheiro de Carvalho, Miguel A.A. |
author_sort |
Gouveia, Carla S.S. |
title |
Changes in oxalate composition and other nutritive traits in root tubers and shoots of sweet potato (Ipomoea batatas L. [Lam.]) under water stress |
title_short |
Changes in oxalate composition and other nutritive traits in root tubers and shoots of sweet potato (Ipomoea batatas L. [Lam.]) under water stress |
title_full |
Changes in oxalate composition and other nutritive traits in root tubers and shoots of sweet potato (Ipomoea batatas L. [Lam.]) under water stress |
title_fullStr |
Changes in oxalate composition and other nutritive traits in root tubers and shoots of sweet potato (Ipomoea batatas L. [Lam.]) under water stress |
title_full_unstemmed |
Changes in oxalate composition and other nutritive traits in root tubers and shoots of sweet potato (Ipomoea batatas L. [Lam.]) under water stress |
title_sort |
changes in oxalate composition and other nutritive traits in root tubers and shoots of sweet potato (ipomoea batatas l. [lam.]) under water stress |
url |
http://agritrop.cirad.fr/594783/ http://agritrop.cirad.fr/594783/7/594783-ed.pdf |
work_keys_str_mv |
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