Título:	A mixture of trehalose derivatives mitigates the adverse effects of water deficits in maize: an analysis of photosynthetic efficiency.
Autoria:	AMBROSIO, A. S. PORTUGAL, J. A. N. SOUZA, K. R. D. SILVA, L. C. DIAS, D. F. MANTOVANI, J. R. MAGALHAES, P. C. SOUZA, T. B. SOUZA, T. C.
Afiliação:	Universidade Federal de Alfenas; Universidade Federal de Alfenas; Universidade Federal de Alfenas; Universidade Federal de Alfenas; Universidade Federal de Alfenas; Unifenas; PAULO CESAR MAGALHAES, CNPMS; Universidade Federal de Ouro Preto; Universidade Federal de Alfenas.
Ano de publicação:	2020
Referência:	Photosynthetica, v. 58, n. 3, p. 808-818, 2020.
Conteúdo:	This study tested a tosylated and azide trehalose derivative mixture for its ability to mitigate water deficit-induced stress in maize via photosynthetic efficiency analyses. The experiment was conducted in greenhouse pots, using a maize hybrid that is sensitive to drought. The mixture of derivatives (28 mM) was applied with a hand sprayer. Plants containing five/six fully expanded leaves were subjected to water deficit stress for 12 d, followed by rehydration. The derivative mixture increased the photosynthetic rate, electron transport rate, and photochemical quenching, and mitigated damage to photosystem II. Moreover, it led to anatomical modifications in the leaf that increased the photosynthetic rate. These results suggest that the trehalose derivative mixture mitigates stress-induced damage in the maize hybrid and may represent a new stimulant for water-deficit tolerance.
Thesagro:	Milho Clorofila
Palavras-chave:	Troca gasosa Anatomia foliar Densidade estomática
Digital Object Identifier:	10.32615/ps.2020.031
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPMS)