NDLI: Differential expression of photosynthesis-related genes and quantification of gas exchange in rice plants under abiotic stress

Content Provider	Springer Nature Link
Author	Amaral, Marcelo gueira Arge, Luis Willian Pacheco Benitez, Letícia Carvalho Danielowski, Rodrigo Silveira, Solange Ferreira Farias, Daniel Deuner, Sidnei Oliveira, Antonio Costa Braga, Eugenia Jacira Bolacel Maia, Lucia Carlos
Copyright Year	2016
Abstract	Abiotic stresses caused by excessive cold, iron, and salt are among the main growth and yield-limiting factors of rice. Among the metabolic processes, photosynthesis stands out for being closely related to crop yields, causing a yield decline by reduced photosynthetic capacity in plants under abiotic stresses. The purpose of this study was to evaluate the differential expression of chloroplast genes involved in photosynthesis by RNA sequencing (RNA-seq) and quantify gas exchanges in leaves of rice plants exposed to cold, iron, and salt stress for 24 h. Of all genes expressed in each stress, cold had the highest number of differentially expressed genes (DEGs) related to light and chloroplast reactions, with 535 mostly down-regulated genes. Salt and iron stress was associated with 309 and 115 genes, respectively, involved in light reactions and chloroplast. The three stresses had transcripts with GOs related to light reactions, all with more than ten different GO terms. With regard to chloroplast, cold and salt stress had 12 terms of GO, and iron stress has 9 terms of GO. For gas exchange, only the parameter net assimilation rate differed significantly between stresses, with the lowest mean under cold stress. The results showed that cold stress affects photosynthesis most drastically, both at the molecular and the physiological level, and despite decreases in the net assimilation rate, changes under iron and salt stress were minor, which may be related to the tolerance of cultivar BRS Querência.
Starting Page	1
Ending Page	11
Page Count	11
File Format	PDF
ISSN	01375881
Journal	Acta Physiologiae Plantarum
Volume Number	38
Issue Number	6
e-ISSN	18611664
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-05-24
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cold stress Iron stress Salt stress RNA-seq Oryza sativa L. PSII Plant Physiology Plant Genetics & Genomics Plant Biochemistry Plant Pathology Plant Anatomy/Development Agriculture
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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