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Brosché, Mikael; Vinocur, Basia; Alatalo, Edward; Lamminmäki, Airi; Teichmann, Thomas; Ottow, Eric A.; Djilianov, Dimitar; Afif, Dany; Bogeat‐Triboulot, Marie‐Béatrice; Altman, Arie; Polle, Andrea; Dreyer, Erwin; Rudd, Stephen; Paulín, Lars; Auvinen, Petri; Kangasjärvi, Jaakko

doi:10.1186/gb-2005-6-12-r101

Cited by 211 publications

(57 citation statements)

References 54 publications

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“…Sugar plays important roles as an osmoprotectant and as an immediate energy source in plants (Wingler and Roitsch, 2008). Many studies have reported increased sugar contents in plants under salt stress (Brosché et al, 2005;Gong et al, 2005;Sanchez et al, 2008;Li et al, 2016;Luo et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Genome-wide expression analysis of a rice mutant line under salt stress

et al. 2016

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ABSTRACT. Salinity is a major environmental stress to plants. In this study, the ability of plants to tolerate salt was investigated by studying growth, physiological characteristics, and expression levels of genes related to the salt-stress response in the salt-tolerant rice mutant (Till-II-877), which was derived from γ-ray irradiation. Compared to plants grown under normal conditions, the height and root length of wild type (WT) were reduced by approximately 40 and 29% following exposure to salt stress for 3 weeks, whereas Till-II-877 line showed 29 and 23% reductions in plant height and root length, respectively. No significant changes were observed in total chlorophyll content, and the malondialdehyde content of the mutant increased less than that of the WT under salt treatment. Gene expression was compared between the WT and mutant lines using microarray analysis. An unbiased analysis of the gene expression datasets allowed us to identify the pathways involved in salt-stress responses. Among the most significantly affected pathways, changes in gene expression were observed in α-linolenic acid and linoleic acid metabolism (in lipid metabolism), fructose and mannose metabolism and glycolysis-gluconeogenesis (in carbohydrate metabolism), cysteine and methionine metabolism (in amino acid metabolism), and carbon fixation (in the energy metabolism of photosynthetic organisms) under salt stress. These results show that the differential response of plants subjected to salt stress was due to changes in multiple metabolic pathways. These findings increase our understanding of the effects of salt stress in rice and may aid in the development of salt-tolerant rice cultivars.

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Section: Discussionmentioning

confidence: 99%

Genome-wide expression analysis of a rice mutant line under salt stress

et al. 2016

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“…Populus euphratica has a particularly high scientific interest due to its high salt, heat and drought tolerance, having been increasingly used for studies in tree molecular biology and biotechnology (Ma et al 1997;Chen et al 2001;Gries et al 2003;Gu et al 2004a;Brosche et al 2005;Ferreira et al 2006). This poplar species is tolerant to poor soils, high salinity and to extreme temperatures (Fu and Chin 1992;Gu et al 1999b;Gu et al 2004a;Gu et al 2004b;Ferreira et al 2006) and it is considered a phreatophyte (Gries et al 2003), being highly sensitive to hydraulic dysfunctions in the xylem (Hukin et al 2005).…”

Section: Introductionmentioning

confidence: 96%

Morphogenesis induction and organogenic nodule differentiation in Populus euphratica Oliv. leaf explants

Ferreira

Batista

Serrazina

et al. 2008

Plant Cell Tiss Organ Cult

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Populus euphratica Oliv. is a deciduous poplar species, occurring mainly in riparian areas of China and Middle Eastern countries, and presenting high tolerance to extreme temperatures and high soil salinity. In this study, an optimized protocol for development and propagation of P. euphratica from leaf explants is reported, based on a morphogenic process that involves organogenic nodule differentiation. Adventitious shoot regeneration of P. euphratica from organogenic nodules of leaf explants was achieved within a range of concentrations of a-naphtalenacetic acid and 6-benzylaminopurine, at a fixed 2:1 ratio. Cambial cells started to divide 5 days after inoculation on culture medium and, after 12 days, several organizing centres were already formed. Non-friable callus tissue, together with organization centres, formed structures that evolved to nodules after about 40 days which were, then, able to regenerate new shoots after 50-60 days. The nodules did not separate from the mother explants and were able to successfully give rise to new adventitious shoots. These were rescued and successfully grown and rooted in different culture media, and fully developed plants were obtained. The regeneration system here described for P. euphratica is innovative, reproducible and data from histological studies of the morphogenic process support the classification of the regenerative structures as organogenic nodules.

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“…To elucidate the functions of CBL gene members respectively in regulating plant response to external stimuli, we also isolated and characterized nine of the CBL genes members from Populus euphratica, a pioneer tree species distributing in desert regions of China and many Middle Eastern countries. It exhibits high tolerance to salinity and drought stresses, making it a valuable plant species for the study of physiological and molecular mechanism underlying woody plants adaptation to environmental stresses (Gu et al 2004;Brosché et al 2005;Ottow et al 2005). For a successful stress defense, Populus euphratica must have developed a network of signal transduction pathways to cope with environmental stresses.…”

Section: Introductionmentioning

confidence: 99%

Calcineurin B-Like family in Populus: comparative genome analysis and expression pattern under cold, drought and salt stress treatment

2008

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Calcium plays a critical role in regulating abiotic-stress response in plant. Calcineurin B-like (CBL) proteins have been identified as calcium sensors in the calcium signaling pathway in Arabidopsis and rice. However, molecular mechanism underlying calcium signaling remains to be elucidated, especially in poplar, a model tree species with complete sequencing of the whole genome. Here, we have characterized 10 CBL candidate genes in the genome of Populus trichocarpa (PtCBLs) and presented a comparative genomics analysis of CBLs in poplar, rice and Arabidopsis, including gene structures, conserved motifs and phylogeny. Comparative genomics analyses showed that the family in poplar appears to be rather conserved in the size and structure, and the duplication events might significantly contribute to the amplification of this gene family. Furthermore, to elucidate the functions of CBL gene members respectively in regulating plant response to external stimuli, we presented a study of CBL family in Populus euphratica (PeCBLs), a mostly salt-and drought-tolerant Populus species. Nine cDNA clones of PeCBL members were isolated from Populus euphratica and a gene specific RT-PCR was performed to investigate their expression patterns under abiotic stress treatment, such as cold, drought, and salt. A transcript analysis of CBLs in Populus euphratica under abiotic stress suggests that seven CBL gene (PeCBL1, 2, 3, 4, 5, 9, and 10) members may play an important role in correspondence to specific external stimuli. Our data will provide important evidence for further studying the functional dissection of the CBL signaling network in plant.

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Abstract: A Populus euphratica DNA microarray was constructed and used to analyze gene expression in trees growing in the desert. P. euphratica is shown to express a set of genes that is different from other Populus trees and these genes contribute to adaptation to saline growth conditions.

Cited by 211 publications

References 54 publications

Genome-wide expression analysis of a rice mutant line under salt stress

Genome-wide expression analysis of a rice mutant line under salt stress

Morphogenesis induction and organogenic nodule differentiation in Populus euphratica Oliv. leaf explants

Calcineurin B-Like family in Populus: comparative genome analysis and expression pattern under cold, drought and salt stress treatment

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