Efectos del desecamiento del suelo sobre el metabolismo de nitrógeno en tres cultivares de maíz (Zea mays L.).

The effects of water stress on the nitrogen metabolism of three corn (lea mays L ) cultivars (Piranao, Centrahnex, IPEACS III) were studied. Measurements were made of the Relative Water Content (RWC); nitrate-reductase activity (NRA) as well as accumulation of amino-N, ammonia-N, free proline and...

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Autores principales:	Pereyra Rossiello, R, Silvestre Fernandes, M, Mazur, N.
Formato:	Artículo
Lenguaje:	Español
Publicado:	Instituto Interamericano de Cooperación para la Agricultura (IICA) 2022
Materias:	ZEA MAYS SUELO METABOLISMO NITROGENO MAÍZ VARIEDADES SOIL METABOLISM NITROGEN MAIZE VARIETIES Sede Central
Acceso en línea:	https://repositorio.catie.ac.cr/handle/11554/12183

id	RepoCATIE12183
record_format	dspace
spelling	RepoCATIE121832022-12-13T16:33:14Z Efectos del desecamiento del suelo sobre el metabolismo de nitrógeno en tres cultivares de maíz (Zea mays L.). The effects of soil desiccation on the nitrogen metabolism of three corn (Zea mays L.) cultivars. Pereyra Rossiello, R Silvestre Fernandes, M Mazur, N. ZEA MAYS SUELO METABOLISMO NITROGENO MAÍZ VARIEDADES ZEA MAYS SOIL METABOLISM NITROGEN MAIZE VARIETIES Sede Central The effects of water stress on the nitrogen metabolism of three corn (lea mays L ) cultivars (Piranao, Centrahnex, IPEACS III) were studied. Measurements were made of the Relative Water Content (RWC); nitrate-reductase activity (NRA) as well as accumulation of amino-N, ammonia-N, free proline and protein-N in the plant tissues. Cultivar Piranio kept a higher RWC and NRA through the desiccation period, and accumulated the lowest levels of ammonia-N and amino-N in its foliar tissues. The performance of cultivar Centrahnex was poor but cultivar IPEACS III was the most severely affected by the imposed water stress regime in terms of the metabolic parameters studied. All three cultivars exponentially acumulated proline with the length of the stress period. It is suggested that further studies should be done on proteolytic activities and de novo synthesis of proline for a better understanding of the effects of metabolites accumulation on water stress resistance in corn plants. 2022-12-12T23:23:20Z 2022-12-12T23:23:20Z 1981-07 Artículo https://repositorio.catie.ac.cr/handle/11554/12183 openAccess es Turrialba; Vol. 31, no. 3 10 páginas application/pdf Instituto Interamericano de Cooperación para la Agricultura (IICA)
institution	Centro Agronómico Tropical de Investigación y Enseñanza
collection	Repositorio CATIE
language	Español
topic	ZEA MAYS SUELO METABOLISMO NITROGENO MAÍZ VARIEDADES ZEA MAYS SOIL METABOLISM NITROGEN MAIZE VARIETIES Sede Central
spellingShingle	ZEA MAYS SUELO METABOLISMO NITROGENO MAÍZ VARIEDADES ZEA MAYS SOIL METABOLISM NITROGEN MAIZE VARIETIES Sede Central Pereyra Rossiello, R Silvestre Fernandes, M Mazur, N. Efectos del desecamiento del suelo sobre el metabolismo de nitrógeno en tres cultivares de maíz (Zea mays L.).
description	The effects of water stress on the nitrogen metabolism of three corn (lea mays L ) cultivars (Piranao, Centrahnex, IPEACS III) were studied. Measurements were made of the Relative Water Content (RWC); nitrate-reductase activity (NRA) as well as accumulation of amino-N, ammonia-N, free proline and protein-N in the plant tissues. Cultivar Piranio kept a higher RWC and NRA through the desiccation period, and accumulated the lowest levels of ammonia-N and amino-N in its foliar tissues. The performance of cultivar Centrahnex was poor but cultivar IPEACS III was the most severely affected by the imposed water stress regime in terms of the metabolic parameters studied. All three cultivars exponentially acumulated proline with the length of the stress period. It is suggested that further studies should be done on proteolytic activities and de novo synthesis of proline for a better understanding of the effects of metabolites accumulation on water stress resistance in corn plants.
format	Artículo
author	Pereyra Rossiello, R Silvestre Fernandes, M Mazur, N.
author_facet	Pereyra Rossiello, R Silvestre Fernandes, M Mazur, N.
author_sort	Pereyra Rossiello, R
title	Efectos del desecamiento del suelo sobre el metabolismo de nitrógeno en tres cultivares de maíz (Zea mays L.).
title_short	Efectos del desecamiento del suelo sobre el metabolismo de nitrógeno en tres cultivares de maíz (Zea mays L.).
title_full	Efectos del desecamiento del suelo sobre el metabolismo de nitrógeno en tres cultivares de maíz (Zea mays L.).
title_fullStr	Efectos del desecamiento del suelo sobre el metabolismo de nitrógeno en tres cultivares de maíz (Zea mays L.).
title_full_unstemmed	Efectos del desecamiento del suelo sobre el metabolismo de nitrógeno en tres cultivares de maíz (Zea mays L.).
title_sort	efectos del desecamiento del suelo sobre el metabolismo de nitrógeno en tres cultivares de maíz (zea mays l.).
publisher	Instituto Interamericano de Cooperación para la Agricultura (IICA)
publishDate	2022
url	https://repositorio.catie.ac.cr/handle/11554/12183
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Efectos del desecamiento del suelo sobre el metabolismo de nitrógeno en tres cultivares de maíz (Zea mays L.).

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