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991.
The cyanobacterium Nostoc commune (Nostocales) is an isolate from the Schirmacher Oasis Antarctica. The cyanobacterium is psychrotropic in nature; and maintained in laboratory at 25?°C temperature, in unialgal form. Here, we studied the change in protein profile of water soluble proteins from exponentially growing N. commune upon downshift from its optimum growth temperature (25?°C) to a low temperature (5?°C). Experimental set up used to analyze the proteome were- a sudden shift to low temperature (i.e., cold shock), after short- (8?days) and long-term acclimation (7?weeks) to low temperature (5?°C). Cold-shock resulted in an increase in Low molecular weight proteins (LMWPs) with clouding of diffused proteins. Further increase in the duration of incubation period (short- and long-term acclimation) caused dissociation of proteins, indicated by NaCl (50–600mM) induced dissociation of proteins. That is, high molecular weight proteins (HMWPs) dissociated into LMWPs resulting in an increased number of protein bands. This was further confirmed by addition of LMWPs (≤10KDa) resulting in re-association of proteins into HMWPs. Hence, we report that the cold-induced synthesis of LMWPs (≤10kDa) is a strategy adopted by the N. commune to survive at low temperature of Antarctica. 相似文献
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Aditya Banerjee Durgesh Kumar Tripathi Aryadeep Roychoudhury 《Physiologia plantarum》2019,165(2):290-302
Karrikins (KARs) are unique butenolides derived as a by‐product of incomplete combustion during wildfire. Some receptive plant species respond to KARs in the form of accelerated germination. These molecules originate from stress to mediate tolerance against different sub‐optimal conditions like oxidative stress, drought and low‐light intensity (shade stress). KARs promote seed germination, seedling establishment and ecological diversity by accelerating the abundance of selective communities of plants. The signaling pathway is closely related, yet unique from strigolactones (SLs). Due to the structural relatedness with SLs, KARs have potential roles in mediating abiotic stress tolerance in plants. In addition, the KAR directly/indirectly interact with crucial phytohormones like abscisic acid, gibberellic acid, auxins and ethylene. This article is a summarized update on KAR research in recent times. The exhaustive discussions would be beneficial for understanding the extraordinary strategy devised by nature to protect plants from stress using a molecule which is itself generated out of stress. 相似文献
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Khanna Kanika Jamwal Vijay Lakshmi Kohli Sukhmeen Kaur Gandhi Sumit G. Ohri Puja Bhardwaj Renu Wijaya Leonard Alyemeni Mohammed Nasser Ahmad Parvaiz 《Plant and Soil》2019,439(1-2):325-338
Plant and Soil - As a major plant-derived soil organic carbon (SOC) component, lignin-derived phenolic compounds show varying biogeochemical characteristics compared to plant-derived lipid... 相似文献
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Horam Soyar Raj Sneha Tripathi Vikash Chandra Pant Garima Kalyan Mitra Reddy Thota Jagadeshwar Arockiaraj Jesu Pasupuleti Mukesh 《International journal of peptide research and therapeutics》2019,25(4):1477-1489
International Journal of Peptide Research and Therapeutics - Antimicrobial peptides are one of the important components of innate immune defense system and play a critical role in controlling... 相似文献
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