Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/174629
COMPARTIR / EXPORTAR:
SHARE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Zinc nutritional status of pecan trees influences physiological and nutritional indicators, the metabolism of oxidative stress, and yield and fruit quality |
Autor: | Ojeda-Barrios, Dámaris L.; Castillo-González, Jorge CSIC; Hernández-Rodríguez, Adriana; Abadía Bayona, Javier CSIC ORCID ; Sánchez, Esteban; Parra-Quezada, Rafael; Vallés-Aragón, Maria-Cecilia; Sida-Arreola, Juan A. Pedro | Palabras clave: | Carya illinoensis Catalase glutathione peroxidase superoxide dismutase zinc deficiency |
Fecha de publicación: | 2019 | Citación: | Ojeda-Barrios D, Castillo-González J, Hernández-Rodríguez A, Abadía J, Sánchez E, Parra-Quezada R, Vallés-Aragón MC, Sida-Arreola JAP. Zinc nutritional status of pecan trees influences physiological and nutritional indicators, the metabolism of oxidative stress, and yield and fruit quality. Botanicae Horti Agrobotanici Cluj-Napoca 47 (2): 531-537 (2019) | Resumen: | In the United States of America and in Mexico, zinc deficiency is a common nutritional disorder in pecan trees [Carya illinoinensis (Wangenh.) C. Koch], especially in calcareous soils. This study in Chihuahua, northern Mexico, analyses the effects of zinc nutritional status on various physiological and nutritional indicators, on the metabolism of oxidative stress, and on the yield and fruit quality of pecan. The aim was to identify possible bioindicators of soil zinc deficiency. The experimental design was completely randomized with four nutritional conditions with respect to zinc: a control and three levels of zinc deficiency - slight, moderate and severe. Zinc deficiency is characterised by small leaves with interveinal necrosis and rippled leaf margins. The lowest values of leaf area, SPAD values, total N and NO3 concentration were observed under conditions of severe zinc deficiency. With worsening zinc deficiency, results indicate an increased enzymatic activity of superoxide dismutase, catalase and glutathione peroxidase. Interestingly, under severe zinc deficiency there are decreases in trunk cross-sectional area growth, in yield and in percentage kernel. Increased activity of superoxide dismutase, catalase and peroxidase enzymes is associated with detoxification of reactive oxygen species. The activity of enzymes detoxifying reactive oxygen species lessens the negative effects of zinc deficiency stress, and may be good bioindicators of zinc deficiency and its visual symptoms on pecan trees. | Descripción: | 7 Pags.- 1 Tabl.- 4 Figs. | Versión del editor: | http://www.notulaebotanicae.ro/index.php/nbha/article/view/11389 | URI: | http://hdl.handle.net/10261/174629 | ISSN: | 0255-965X | E-ISSN: | 1842-4309 |
Aparece en las colecciones: | (EEAD) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
AbadiaJ_NotulBotHortAgrobot_2019.pdf | 1,06 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
Page view(s)
948
checked on 18-mar-2024
Download(s)
358
checked on 18-mar-2024
Google ScholarTM
Check
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.