Trehalose-Producing Enzymes MTSase and MTHase in Anabaena 7120 Under NaCl Stress

Asthana, Ravi Kumar; Nigam, Subhasha; Maurya, Archana; Kayastha, Arvind M.; Singh, Satnam

doi:10.1007/s00284-008-9121-0

Cited by 11 publications

(7 citation statements)

References 32 publications

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“…Today they are nearly ubiquitous in distribution and are found in extremes of environments ranging from hot springs [192][193][194] 2 Osmoticum [195][196][197] 3 Desiccation [47,198,103,199,87] 4 Gamma radiation [108,116,87,141,200,142] 5 Nutrition deficiency [201][202][203] 6 Heat [204,205] 7 Cold [206] 8 UV [191,207] 9…”

mentioning

confidence: 99%

Desiccation and radiation stress tolerance in cyanobacteria

Singh

2018

J Basic Microbiol

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Cyanobacteria are among the oldest living organisms on this planet, existing since more than 3 billion years. They are ideal organisms for investigating biological processes such as photosynthesis, respiration, circadian rhythm, photoregulation of gene expression, developmental gene rearrangements, and specialized cell differentiation. They are nearly ubiquitous in distribution, have colonized a wide range of ecosystems including soil, air, dry rock, and aquatic systems, and even occupy extreme niches that are inaccessible to other organisms. Such wide ecological distribution reflects their capacity to acclimate to extreme environments. They show great adaptive abilities and have survived various adverse physiological growth conditions like desiccation, high temperatures, extreme pH, cold, osmosis, salt, light, nitrogen, and high salinity. Their ancient origin and surviving through numerous stresses during evolution indicates their remarkable capabilities to survive and prevail under different environmental and man-made stresses. It has been hypothesized that similar and overlap stress response mechanisms help them to survive different stresses. It has been stated that responses against stresses like radiation has been accidental-exhibited because of similar response against desiccation stress, which has prevailed more during evolution. These overlaps and similarities in stress responses have been instrumental in making these organisms a large class of biological entities today. Present review discuss about stress tolerance in cyanobacteria against two extreme stresses - desiccation and gamma radiation. It also discuss the commonality and underlying molecular mechanisms in these two stress responses.

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confidence: 99%

Desiccation and radiation stress tolerance in cyanobacteria

Singh

2018

J Basic Microbiol

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“…Increase in the sugar content observed could therefore, be related to the survival of the organisms at higher concentrations of salt. (Asthana et al, 2008) observed enhanced trehalose content in the cyanobacterium Anabaena 7120 under salinity stress.…”

Section: Resultsmentioning

confidence: 85%

Characterization of Cyanobacterial Isolates from Rann of Kutch for Salinity Tolerance

Reddy¹,

Yadav²,

Abraham³

2018

Int.J.Curr.Microbiol.App.Sci

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“…Increase in the sugar content observed could therefore, be related to the survival of the organisms at higher concentrations of salt. Asthana et al (2008) observed enhanced trehalose content in the cyanobacterium Anabaena 7,120 under salinity stress. The variation observed amongst the strains with respect to the cellular constituents could be attributed to differences in the physiological status of the organisms.…”

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confidence: 85%

Physiological characterization of cyanobacterial isolates from Rann of Kutch

Ram

Dhar

Abraham

2013

Ind J Plant Physiol.

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Ten cyanobacterial isolates from the hypersaline environment of Rann of Kutch were characterized for growth related physiological variables. A wide variability was observed in chlorophyll, protein and sugar content among the isolates. Similarly carotenoids, phycoerythrin and allophycocyanin contents also varied among the isolates. Differential activity of antioxidant enzymes such as superoxide dismutase, ascorbate peroxidase, catalase and levels of proline were related to the ability of the strains to survive at higher salinity levels.

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Trehalose-Producing Enzymes MTSase and MTHase in Anabaena 7120 Under NaCl Stress

Cited by 11 publications

References 32 publications

Desiccation and radiation stress tolerance in cyanobacteria

Desiccation and radiation stress tolerance in cyanobacteria

Characterization of Cyanobacterial Isolates from Rann of Kutch for Salinity Tolerance

Physiological characterization of cyanobacterial isolates from Rann of Kutch

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