نتایج جستجو برای: ethylene absorption
تعداد نتایج: 160350 فیلتر نتایج به سال:
Upon reduction at 975 °C, a strong metal-support interaction (SMSI) of CeO2 on Pt NPs leads to low rates for ethylene hydrogenation and propane dehydrogenation, but high olefin selectivity the latter reaction. By contrast, 550 °C Pt/CeO2, 5 nm NP’s with dehydrogenation TORs similar Pt/SiO2. X-ray absorption fine structure (EXAFS) scanning transmission electron microscopy (STEM) shows formation ...
Ethylene and abscisic acid (ABA) act synergistically or antagonistically to regulate plant growth and development. ABA is derived from the carotenoid biosynthesis pathway. Here, we analyzed the interplay among ethylene, carotenoid biogenesis, and ABA in rice (Oryza sativa) using the rice ethylene response mutant mhz5, which displays a reduced ethylene response in roots but an enhanced ethylene ...
BACKGROUND Biotechnological production of the traditional petrochemical ethylene is presently being explored using yeasts as well as bacteria. In this study we quantify the specific ethylene production levels at different conditions in continuous (chemostat) cultivation of Saccharomyces cerevisae expressing the ethylene forming enzyme (EFE) from Pseudomonas syringae. RESULTS Our study shows t...
Ethylene serves as an important hormone controlling several aspects of plant growth and development, including fruit ripening and leaf and petal senescence. Ethylene is perceived following its binding to membrane-localized receptors, resulting in their inactivation and the induction of ethylene responses. Five distinct types of receptors are expressed in Arabidopsis (Arabidopsis thaliana), and ...
Ethylene responses in Arabidopsis are mediated by a small family of receptors, including the ETR1 gene product. Specific mutations in the N-terminal ethylene-binding domain of any family member lead to dominant ethylene insensitivity. To investigate the mechanism of ethylene insensitivity, we examined the effects of mutations on the ethylene-binding activity of the ETR1 protein expressed in yea...
Docetaxel is a potent anticancer drug, but development of an oral formulation has been hindered mainly due to its poor oral bioavailability. In this study, solid lipid nanoparticles (SLNs) surface-modified by Tween 80 or D-alpha-tocopheryl poly(ethylene glycol 1000) succinate (TPGS 1000) were prepared and evaluated in terms of their feasibility as oral delivery systems for docetaxel. Tween 80-e...
Current methods of analysis for ethylene oxide (EO) in medical devices include headspace and simulated-use extractions followed by gas chromatography with either a packed or a capillary column. The quantitation limits are about 0.5-1.0 microg/g for a packed column and about 0.1-0.2 microg/g for a capillary column. The current allowable levels of EO on medical devices sterilized with EO gas as o...
Many physiological processes have shown art,.lowith a neck to accommodate a 25 mm diameter Sgous responses to both auxin and ethylene. These rubber vaccine cap. The gas collection bottles were processes include root initiation, intumescence formathen sealed and incubated at 21'; etiolated tissue was tion, epinasty (9), fruit ripening (3, 12), floral placed in the dark and green tissue in 150 ft...
jasmonates are a new group of plant growth regulator that are involved in many morphological and physiological processes and play a defensive role in plants. in this research, the effects of methyl jasmonate and ethylene and their interaction, on parameters like fresh weight, dry weight, leaf area and quantity protein, malodealdehyde and electrolyte leakage in leaves canola (brassica napus l.) ...
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