Activity invertase and amylase in Marandu grass under shading and nitrogen fertilization

Vista sencilla de ítem
dc.creatorFlorence Taciana Veriato Coura
dc.creatorDaniela Deitos Fries
dc.creatorRodrigo Diego Quoos
dc.creatorFábio Andrade Teixeira
dc.creatorAureliano José Vieira Pires
dc.creatorAbdias José de Figueiredo
dc.date2020
dc.date.accessioned2026-07-07T03:54:34Z
dc.descriptionThe objective of this study was to evaluate the activity of invertases and amylases in Brachiaria brizantha cv. Marandu under various shade and nitrogen fertilization conditions. The experiment was carried out in a greenhouse using a 4 x 2 factorial scheme (shading levels of 0, 30, 50, and 80% and fertilization with 0 and 100 kg N ha-1). The activity of the enzymes, cytosol-neutral invertase (Inv-N), vacuole acid (Inv-V) and cell-acidic acid (Inv-CW), reducing sugars (RS), and α and β-amylases were evaluated (α = 0.05). The interaction was significant for Inv-N within the leaf. In the first cycle, the highest activity was in fertilized plants with 30, 50, and 80% shading. For Inv-CW in the 1st cycle, the highest activity occurred with 0, 30, and 50% shading. However, the interaction for Inv-V leaf activity was not significant in the 1st and 2nd cycles. The highest activity observed for Inv-V was in the fertilized plants, suggesting that fertilization increased the enzymatic activity. The activity of the invertases increased both under 30-50% shaded conditions and in full sun. Furthermore, invertase activity was directly linked to the osmoregulatory system. The reduction in RS was related to a low photosynthetic rate, and an increase α and β-amylase was associated with the use of reserve energy sources to meet energetic needs.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303062597036
dc.identifierhttps://www.redalyc.org/journal/3030/303062597036/
dc.identifierhttps://www.redalyc.org/journal/3030/303062597036/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303062597036/303062597036.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303062597036/movil
dc.identifier10.4025/actasciagron.v42i1.42496
dc.identifier.urihttp://hdl.handle.net/123456789/447003
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Vol.42
dc.subjectAgrociencias
dc.titleActivity invertase and amylase in Marandu grass under shading and nitrogen fertilization
dc.typeartículo científico

Archivos

Colecciones

Acta Scientiarum. Agronomy - Universidade Estadual de Maringá