The Experts below are selected from a list of 30843 Experts worldwide ranked by ideXlab platform
Ozer Kolsarici - One of the best experts on this subject based on the ideXlab platform.
-
seed treatments to overcome salt and drought stress during germination in sunflower helianthus annuus l
European Journal of Agronomy, 2006Co-Authors: Mehmet Demir Kaya, Gamze Okcu, Mehmet Atak, Yakup Cikili, Ozer KolsariciAbstract:Abstract The treated seeds (control, KNO 3 and hydropriming) of sunflower ( Helianthus annuus L.) cultivar Sanbro were evaluated at germination and seedling growth for tolerance to salt (NaCl) and drought conditions induced by PEG-6000 at the same water potentials of 0.0, −0.3, −0.6, −0.9 and −1.2 MPa. Electrical conductivity (EC) values of the NaCl solutions were 0.0, 6.5, 12.7, 18.4 and 23.5 dS m −1 , respectively. The objective of the study was to determine factors responsible for germination and early seedling growth due to salt toxicity or Osmotic Effect and to optimize the best priming treatment for these stress conditions. Results revealed that germination delayed in both solutions, having variable germination with different priming treatments. Germination, root and shoot length were higher but mean germination time and abnormal germination percentage were lower in NaCl than PEG at the same water potential. Seeds were able to germinate at all concentrations of NaCl but no seed germination was observed at −1.2 MPa of PEG treatments. NaCl had less inhibitor Effect on seedling growth than the germination. It was concluded that inhibition of germination at the same water potential of NaCl and PEG resulted from Osmotic Effect rather than salt toxicity. Hydropriming increased germination and seedling growth under salt and drought stresses.
Mehmet Demir Kaya - One of the best experts on this subject based on the ideXlab platform.
-
seed treatments to overcome salt and drought stress during germination in sunflower helianthus annuus l
European Journal of Agronomy, 2006Co-Authors: Mehmet Demir Kaya, Gamze Okcu, Mehmet Atak, Yakup Cikili, Ozer KolsariciAbstract:Abstract The treated seeds (control, KNO 3 and hydropriming) of sunflower ( Helianthus annuus L.) cultivar Sanbro were evaluated at germination and seedling growth for tolerance to salt (NaCl) and drought conditions induced by PEG-6000 at the same water potentials of 0.0, −0.3, −0.6, −0.9 and −1.2 MPa. Electrical conductivity (EC) values of the NaCl solutions were 0.0, 6.5, 12.7, 18.4 and 23.5 dS m −1 , respectively. The objective of the study was to determine factors responsible for germination and early seedling growth due to salt toxicity or Osmotic Effect and to optimize the best priming treatment for these stress conditions. Results revealed that germination delayed in both solutions, having variable germination with different priming treatments. Germination, root and shoot length were higher but mean germination time and abnormal germination percentage were lower in NaCl than PEG at the same water potential. Seeds were able to germinate at all concentrations of NaCl but no seed germination was observed at −1.2 MPa of PEG treatments. NaCl had less inhibitor Effect on seedling growth than the germination. It was concluded that inhibition of germination at the same water potential of NaCl and PEG resulted from Osmotic Effect rather than salt toxicity. Hydropriming increased germination and seedling growth under salt and drought stresses.
Zhongying Jiang - One of the best experts on this subject based on the ideXlab platform.
-
Preservation of Supported Lipid Membrane Integrity from Thermal Disruption: Osmotic Effect.
ACS applied materials & interfaces, 2016Co-Authors: Tao Zhu, Zhongying JiangAbstract:Preservation of structural integrity under various environmental conditions is one major concern in the development of the supported lipid membrane (SLM)-based devices. It is common for SLMs to experience temperature shifts from manufacture, processing, storage, and transport to operation. In this work, we studied the thermal adaption of the supported membranes on silica substrates. Homogenous SLMs with little defects were formed through the vesicle fusion method. The mass and fluidity of the bilayers were found to deteriorate from a heating process but not a cooling process. Fluorescence characterizations showed that the membranes initially budded as a result of heating-induced lipid lateral area expansion, followed by the possible fates including maintenance, retraction, and fission, among which the last contributes to the irreversible compromise of the SLM integrity and spontaneous release of the interlipid stress accumulated. Based on the mechanism, we developed a strategy to protect SLMs from thermal...
-
Effect of Osmotic Stress on Membrane Fusion on Solid Substrate
Langmuir, 2013Co-Authors: Zhongying Jiang, El Mi Ra Nurlybaeva, Jie Sheng, Yu-qiang MaAbstract:There is currently a lack of comprehensive understanding of Osmotic Effect on lipid vesicle fusion on solid oxide surface. The question has both biological and biomedical implications. We studied the Effect by quartz crystal microbalance with dissipation monitoring using NaCl, sucrose as osmolytes, and two different Osmotic stress imposition methods, which allowed us to separate the Osmotic Effects from the solute impacts. Osmotic stress was found to have limited influence on the fusion kinetics, independently of the direction of the gradient. Further atomic force microscopy experiments and energy consideration implied that Osmotic stress spends the majority of chemical potential energy associated in directed transport of water across membrane. Its contribution to vesicle deformation and fusion on substrate is therefore small compared to that of adhesion.
Mehmet Atak - One of the best experts on this subject based on the ideXlab platform.
-
seed treatments to overcome salt and drought stress during germination in sunflower helianthus annuus l
European Journal of Agronomy, 2006Co-Authors: Mehmet Demir Kaya, Gamze Okcu, Mehmet Atak, Yakup Cikili, Ozer KolsariciAbstract:Abstract The treated seeds (control, KNO 3 and hydropriming) of sunflower ( Helianthus annuus L.) cultivar Sanbro were evaluated at germination and seedling growth for tolerance to salt (NaCl) and drought conditions induced by PEG-6000 at the same water potentials of 0.0, −0.3, −0.6, −0.9 and −1.2 MPa. Electrical conductivity (EC) values of the NaCl solutions were 0.0, 6.5, 12.7, 18.4 and 23.5 dS m −1 , respectively. The objective of the study was to determine factors responsible for germination and early seedling growth due to salt toxicity or Osmotic Effect and to optimize the best priming treatment for these stress conditions. Results revealed that germination delayed in both solutions, having variable germination with different priming treatments. Germination, root and shoot length were higher but mean germination time and abnormal germination percentage were lower in NaCl than PEG at the same water potential. Seeds were able to germinate at all concentrations of NaCl but no seed germination was observed at −1.2 MPa of PEG treatments. NaCl had less inhibitor Effect on seedling growth than the germination. It was concluded that inhibition of germination at the same water potential of NaCl and PEG resulted from Osmotic Effect rather than salt toxicity. Hydropriming increased germination and seedling growth under salt and drought stresses.
Gamze Okcu - One of the best experts on this subject based on the ideXlab platform.
-
seed treatments to overcome salt and drought stress during germination in sunflower helianthus annuus l
European Journal of Agronomy, 2006Co-Authors: Mehmet Demir Kaya, Gamze Okcu, Mehmet Atak, Yakup Cikili, Ozer KolsariciAbstract:Abstract The treated seeds (control, KNO 3 and hydropriming) of sunflower ( Helianthus annuus L.) cultivar Sanbro were evaluated at germination and seedling growth for tolerance to salt (NaCl) and drought conditions induced by PEG-6000 at the same water potentials of 0.0, −0.3, −0.6, −0.9 and −1.2 MPa. Electrical conductivity (EC) values of the NaCl solutions were 0.0, 6.5, 12.7, 18.4 and 23.5 dS m −1 , respectively. The objective of the study was to determine factors responsible for germination and early seedling growth due to salt toxicity or Osmotic Effect and to optimize the best priming treatment for these stress conditions. Results revealed that germination delayed in both solutions, having variable germination with different priming treatments. Germination, root and shoot length were higher but mean germination time and abnormal germination percentage were lower in NaCl than PEG at the same water potential. Seeds were able to germinate at all concentrations of NaCl but no seed germination was observed at −1.2 MPa of PEG treatments. NaCl had less inhibitor Effect on seedling growth than the germination. It was concluded that inhibition of germination at the same water potential of NaCl and PEG resulted from Osmotic Effect rather than salt toxicity. Hydropriming increased germination and seedling growth under salt and drought stresses.
