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Full-Text Articles in Biochemistry, Biophysics, and Structural Biology
Ectopic Expression Of A Cyanobacterial Flavodoxin In Creeping Bentgrass Impacts Plant Development And Confers Broad Abiotic Stress Tolerance, Zhigang Li, Shuangrong Yuan, Haiyan Jia, Fangyuan Gao, Qian Hu, Dongfa Sun, Hong Luo
Ectopic Expression Of A Cyanobacterial Flavodoxin In Creeping Bentgrass Impacts Plant Development And Confers Broad Abiotic Stress Tolerance, Zhigang Li, Shuangrong Yuan, Haiyan Jia, Fangyuan Gao, Qian Hu, Dongfa Sun, Hong Luo
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Flavodoxin (Fld) plays a pivotal role in photosynthetic microorganisms as an alternative electron carrier flavoprotein under adverse environmental conditions. Cyanobacterial Fld has been demonstrated to be able to substitute ferredoxin (Fd) of higher plants in most electron transfer processes under stressful conditions. We have explored the potential of Fld for use in improving plant stress response in creeping bentgrass (Agrostis stolonifera L.). Overexpression of Fld altered plant growth and development. Most significantly, transgenic (TG) plants exhibited drastically enhanced performance under oxidative, drought and heat stress as well as nitrogen (N) starvation, which was associated with higher water retention and …
Dendrimer Supramolecular Assembly For Gene Delivery, Karthikeyan Pasupathy
Dendrimer Supramolecular Assembly For Gene Delivery, Karthikeyan Pasupathy
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Dendrimers have found many applications in the fields of polymer science, biophysics, nanomedicine and the petroleum industry. Poly(amidoamine) (PAMAM) was studied as a model dendrimer and squalane as a model hydrocarbon. The interaction between PAMAM and squalane is pH dependent. Specifically, at low or neutral pH the squalane is found on the periphery of the PAMAM while at high pH the hydrocarbon is entrapped inside the PAMAM molecules.
Single-molecule fluorescence revealed that the interaction between PAMAM and squalane is reversible. At a pH value of 8, the time constants for the approaching, binding and dissociation of single PAMAM to squalane …