Germination of Pisum sativum L. Seeds Is Associated with the Alternative Respiratory Pathway
Ver/Abrir
Autor/a
Rodrigues, Lénia
Nunes, João
Rodrigues, Leonardo
Hansen, Lee D.
Cardoso, Hélia
Fecha de publicación
2023-10-09ISSN
2079-7737
Resumen
Germination is a complex process that begins with rapid water uptake and a marked increase in oxygen consumption rate from initiation of aerobic respiration. The mitochondrial electron transport chain (ETC) in plants is a critical cellular respiratory system that has two different pathways: the cytochrome oxidase (COX) pathway and the alternative oxidase (AOX) pathway. The AOX enzyme plays a crucial role in energy production as well as in stress response. An AOX gene family study in Pisum sativum revealed three AOX genes (PsAOX). Transcript accumulation analysis revealed the involvement of all three PsAOX members in pea seed germination, albeit with high genotype variation. Calorespirometry was used to monitor metabolic changes during a germination trial using inhibitors of both respiratory pathways and proved to be useful for distinguishing differing respiratory activity in different cultivars. This study offers valuable insights into the AOX family composition in P. sativum, as well as their role during seed germination.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
Inglés
Materias (CDU)
631 - Agricultura. Agronomía. Maquinaria agrícola. Suelos. Edafología agrícola
Páginas
22
Publicado por
MDPI
Publicado en
Biology
Citación
Rodrigues, Lénia, Amaia Nogales, João Nunes, Leonardo Rodrigues, Lee D. Hansen, and Hélia Cardoso. 2023. “Germination of Pisum Sativum L. Seeds Is Associated with the Alternative Respiratory Pathway.” MDPI. Multidisciplinary Digital Publishing Institute. October 9. doi:10.3390/biology12101318
Número del acuerdo de la subvención
EC/H2020/727230/UE/Improve performance of organic agriculture by boosting organic seed and plant breeding efforts across Europe/LIVESEED
Program
Protecció Vegetal Sostenible
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