Aluminium‐responsive genes in sugarcane: identification and analysis of expression under oxidative stress

Watt, D. A.

doi:10.1093/jxb/erg128

Cited by 73 publications

(60 citation statements)

References 29 publications

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“…The transcripts of two different genes coding for tonoplast intrinsic proteins (TIPs) decreased under Al stress, which would suggest generation of a lower turgor pressure in the cell elongation zone resulting in reduced root growth (Milla et al, 2002). Watt (2003) indicated that 14 of the 50 cDNAs up-regulated by Al stress in sugarcane were involved in signalling events and the regulation of gene expression. Mao et al(2003) identified several Al-regulated genes related to the metabolism of cell wall components in rice.…”

Section: Genes or Proteins Regulated By Al Stressmentioning

confidence: 99%

“…However, most of these genes are general stress-inducible genes, whose expressions are turned on by oxidative stress (Ezaki et al, 1996;Richards et al, 1998;Watt, 2003), pathogen infection (Hamel et al, 1998;Cruz-Ortega et al, 1997;Watt, 2003), other metal ions (Snowden et al, 1995), and water-stress and cold stress (Watt, 2003). They are correlated with Al toxicity rather than tolerance to Al stress.…”

Section: Isolation and Cloning Of Genes For Al Tolerancementioning

confidence: 99%

“…Genetic analysis of Al tolerance in highly diverse barley genotypes (Minella and Sorrells, 1992;Tang et al, 2000;Raman et al, 2001;2003;2005a;Ma et al, 2004;Wang et al, 2006) indicates that the genetic base for Al tolerance is very narrow. The genetic variation in Al tolerance may be due to mutations in the Al tolerance gene in barley, that may lead to variation in Al tolerance levels (e.g.…”

Section: Isolation and Cloning Of Genes For Al Tolerancementioning

confidence: 99%

See 2 more Smart Citations

Aluminium tolerance in barley (Hordeum vulgare L.): Physiological mechanisms, genetics and screening methods

Wang

Raman

Zhang

et al. 2006

J. Zhejiang Univ. - Sci. B

116

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Aluminium (Al) toxicity is one of the major limiting factors for barley production on acid soils. It inhibits root cell division and elongation, thus reducing water and nutrient uptake, consequently resulting in poor plant growth and yield. Plants tolerate Al either through external resistance mechanisms, by which Al is excluded from plant tissues or internal tolerance mechanisms, conferring the ability of plants to tolerate Al ion in the plant symplasm where Al that has permeated the plasmalemma is sequestered or converted into an innocuous form. Barley is considered to be most sensitive to Al toxicity among cereal species. Al tolerance in barley has been assessed by several methods, such as nutrient solution culture, soil bioassay and field screening. Genetic and molecular mapping research has shown that Al tolerance in barley is controlled by a single locus which is located on chromosome 4H. Molecular markers linked with Al tolerance loci have been identified and validated in a range of diverse populations. This paper reviews the (1) screening methods for evaluating Al tolerance, (2) genetics and (3) mechanisms underlying Al tolerance in barley.

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Section: Genes or Proteins Regulated By Al Stressmentioning

confidence: 99%

Section: Isolation and Cloning Of Genes For Al Tolerancementioning

confidence: 99%

Section: Isolation and Cloning Of Genes For Al Tolerancementioning

confidence: 99%

See 1 more Smart Citation

Aluminium tolerance in barley (Hordeum vulgare L.): Physiological mechanisms, genetics and screening methods

Wang

Raman

Zhang

et al. 2006

J. Zhejiang Univ. - Sci. B

116

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“…SSH has successfully been used to identify genes responsive to various biotic and abiotic stresses in various plant species such as Saccharum (Watt 2003); Festuca (Zhang et al 2005); Pennisetum (Mishra et al 2007); Agrostis (Xu et al 2009); Triticum (Chauhan et al 2011). Thus in the current study we focus on identifying, validating and establishing the putative functions of the major differentially expressed genes in P. glaucum during drought stress response using SSH, real-time quantitative qRT-PCR and homology searches.…”

Section: Introductionmentioning

confidence: 99%

Transcriptional profiling in pearl millet (Pennisetum glaucum L.R. Br.) for identification of differentially expressed drought responsive genes

Choudhary

Jayanand

Padaria

2015

Physiol Mol Biol Plants

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Pearl millet (Pennisetum glaucum) is an important cereal of traditional farming systems that has the natural ability to withstand various abiotic stresses. The present study aims at the identification and validation of major differentially expressed genes in response to drought stress in P. glaucum by Suppression Subtractive Hybridization (SSH) analysis. Twenty-two days old seedlings of P. glaucum cultivar PPMI741 were subjected to drought stress by treatment of 30 % Polyethylene glycol for different time periods 30 min

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“…Since the parB and NtPox genes encode a glutathione S-transferase and a peroxidase, we also supposed that Al stress is probably linked to oxidative stress (Ezaki et al, 1996). Recently, Watt (2003) identified several Al stress-induced genes from Saccharum spp. hybrid cv N19, which are homologous to Ser/Thr kinase, RAS-related protein, GTPbinding protein, and so on.…”

mentioning

confidence: 97%

Mechanism of Gene Expression of Arabidopsis Glutathione S-Transferase, AtGST1, and AtGST11 in Response to Aluminum Stress

et al. 2004

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The gene expression of two Al-induced Arabidopsis glutathione S-transferase genes, AtGST1 and AtGST11, was analyzed to investigate the mechanism underlying the response to Al stress. An approximately 1-kb DNA fragment of the 5′-upstream region of each gene was fused to a β-glucuronidase (GUS) reporter gene (pAtGST1::GUS and pAtGST11::GUS) and introduced into Arabidopsis ecotype Landsberg erecta. The constructed transgenic lines showed a time-dependent gene expression to a different degree in the root and/or leaf by Al stress. The pAtGST1::GUS gene was induced after a short Al treatment (maximum expression after a 2-h exposure), while the pAtGST11::GUS gene was induced by a longer Al treatment (approximately 8 h for maximum expression). Since the gene expression was observed in the leaf when only the root was exposed to Al stress, a signaling system between the root and shoot was suggested in Al stress. A GUS staining experiment using an adult transgenic line carrying the pAtGST11::GUS gene supported this suggestion. Furthermore, Al treatment simultaneously with various Ca depleted conditions in root region enhanced the gene expression of the pAtGST11::GUS in the shoot region. This result suggested that the degree of Al toxicity in the root reflects the gene response of pAtGST11::GUS in the shoot via the deduced signaling system. Both transgenic lines also showed an increase of GUS activity after cold stress, heat stress, metal toxicity, and oxidative damages, suggesting a common induction mechanism in response to the tested stresses including Al stress.

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Aluminium‐responsive genes in sugarcane: identification and analysis of expression under oxidative stress

Cited by 73 publications

References 29 publications

Aluminium tolerance in barley (Hordeum vulgare L.): Physiological mechanisms, genetics and screening methods

Aluminium tolerance in barley (Hordeum vulgare L.): Physiological mechanisms, genetics and screening methods

Transcriptional profiling in pearl millet (Pennisetum glaucum L.R. Br.) for identification of differentially expressed drought responsive genes

Mechanism of Gene Expression of Arabidopsis Glutathione S-Transferase, AtGST1, and AtGST11 in Response to Aluminum Stress

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