Differential expression of LEA proteins in two genotypes of mulberry under salinity

Jyothsnakumari, G.; Thippeswamy, M.; Veeranagamallaiah, G.; Sudhakar, Chinta

doi:10.1007/s10535-009-0022-2

Cited by 12 publications

(10 citation statements)

References 45 publications

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“…Transgenic plants overexpressing genes encoding LEA proteins and molecular chaperones such as HAV1, a group 3 LEA protein gene, can enhance resistance to drought, salt, cold, and other stresses (Jyothsnakumari et al 2009 ) . For example, transgenic wheat, oats, and rice with overexpression of the HAV1 gene have drought and salt resistance, and show improved growth (Fu et al 2007 ) .…”

Section: Plant Stress Tolerance or Resistance: Productivity And Prospmentioning

confidence: 99%

“…Late embryogenesis abundant proteins (LEA67), heat shock proteins (HSP68) (Bray 1997 ) , antifreezing proteins, osmotic regulatory proteins, free-radical scavengers (Wang et al 2003 ) , and various proteinase inhibitors are examples of the latter type of proteins (Des Marais and Juenger 2010 ) . LEA and chaperones often have conservative sequences and polar amino acids, so they are stable and can cooperate in stabilizing the structures of proteins and cell membranes (Fu et al 2007 ;Jyothsnakumari et al 2009 ) .…”

Section: Introduction: Abiotic Stress Responses -Importancementioning

confidence: 99%

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Abiotic Stress Responses in Plants: Metabolism to Productivity

Macedo

2011

Abiotic Stress Responses in Plants

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Plants are sessile beings, so the lack of mechanisms to escape from adverse conditions has fostered, through evolution, the development of unique and sophisticated responses to environmental stress. Depending on the degree of plasticity that a plant possesses to deal with a new environmental situation, in response to abiotic stress, morphological, anatomical, and physiological changes may occur. These changes can affect plant growth, productivity in agriculture, metabolic profi le, and plant nutritional potential, for example. Therefore, plant abiotic stress has been a matter of concern for the maintenance of human life on earth and especially for the world economy. To meet these challenges, genes, transcripts, proteins, and metabolites that control the architecture and/or stress resistance of crop plants in a wide range of environments will need to be identifi ed, in order to facilitate the biotechnological improvement of crop productivity. The combination of different "omics" tools, which rather than investigating a limited number of substances, enable the large-scale scanning of various substances, offers great potential for postgenomics to elucidate the genotype-phenotype relationships. This chapter is intended to be a synopsis of current knowledge on this regard. It focuses on plant proteome and metabolome affected by abiotic factors. It will include informations on recent advances in methods of omics like proteomics and metabolomics, which should be considered as a new opportunity to understand abiotic responses and identify genes responsible for important crop traits.

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Section: Plant Stress Tolerance or Resistance: Productivity And Prospmentioning

confidence: 99%

Section: Introduction: Abiotic Stress Responses -Importancementioning

confidence: 99%

Abiotic Stress Responses in Plants: Metabolism to Productivity

Macedo

2011

Abiotic Stress Responses in Plants

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“…LEA-type proteins have been found in a wide range of plant species where they are synthesized in response to water deficit resulting from desiccation, cold and osmotic stress (Physcomitrella patens , pea − Grelet et al 2005, soybean − Shih et al 2004, rice − Moons et al 1997, cotton − Galau et al 1993, radish − Raynal et al 1990) and salt stress (mulberry − Jyothsnakumari et al 2009). LEA-type proteins are encoded by RD (responsive to dehydration), ERD (early responsive to dehydration), KIN (cold inducible), COR (cold regulated), and RAB (responsive to abscisic acid) genes in different plant species Yamaguchi-Shinozaki 2000, Zhu 2002).…”

Section: Transgenic Plants Harboring Protective Proteins For Enhancedmentioning

confidence: 99%

Beyond osmolytes and transcription factors: drought tolerance in plants via protective proteins and aquaporins

Hussain¹,

Iqbal²,

Arif³

et al. 2011

Biol. plant.

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Mechanisms of drought tolerance have been studied by numerous groups, and a broad range of molecules have been identified to play important roles. A noteworthy response of stressed plants is the accumulation of novel protective proteins, including heat-shock proteins (HSPs) and late embryogenesis abundant (LEA) proteins. Identification of gene regulatory networks of these protective proteins in plants will allow a wide application of biotechnology for enhancement of drought tolerance and adaptation. Similarly, aquaporins are involved in the regulation of water transport, particularly under abiotic stresses. The molecular and functional characterization of protective proteins and aquaporins has revealed the significance of their regulation in response to abiotic stresses. Herein, we highlight new findings regarding the action mechanisms of these proteins. Finally, this review also surveys the current advances in engineering drought tolerant plants, particularly the engineering of protective proteins (sHSPs and LEA) and aquaporins for imparting drought stress tolerance in plants.Additional key words: abiotic stress, heat-shock proteins, late embryogenesis abundant proteins, transgenic plants

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“…All these environmental stresses bring about osmotic stress in plants which, in turn, alter gene expression and induce many new proteins (Altman 2003, Grover et al 2003. Expressions of drought and salt induced polypeptides have been reported in several plants (Hurkman et al 1989, Uma et al 1995, Jyothsnakumari et al 2009). It has been recorded that the stress induced proteins are better expressed in tolerant genotypes compared to sensitive ones (Pelah et al 1997, Kawasaki et al 2001, Jyothsnakumari et al 2009, Roy et al 2009, Alizadeh et al 2010.…”

Section: ⎯⎯⎯⎯mentioning

confidence: 99%

Mannitol, polyethylene glycol and NaCl induced polypeptide changes during in vitro culture of three tomato cultivars

Roy¹,

Agrawal²,

Gupta³

2011

Biol. plant.

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Three cultivars of tomato Pusa Ruby, Arka Vikas and Pusa Early Dwarf were subjected to osmotic stresses induced by mannitol, polyethylene glycol and NaCl in vitro. Polypeptide patterns were analyzed during each stress treatment to differentiate between tolerant and sensitive cultivars. The stresses induced more stress proteins in cv. Pusa Ruby compared to other two cultivars indicating it to be relatively osmotic stress tolerant.Additional key words: Lycopersicon esculentum, osmotic stress.

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Differential expression of LEA proteins in two genotypes of mulberry under salinity

Cited by 12 publications

References 45 publications

Abiotic Stress Responses in Plants: Metabolism to Productivity

Abiotic Stress Responses in Plants: Metabolism to Productivity

Beyond osmolytes and transcription factors: drought tolerance in plants via protective proteins and aquaporins

Mannitol, polyethylene glycol and NaCl induced polypeptide changes during in vitro culture of three tomato cultivars

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