scholarly journals Extraction and separation of water-soluble proteins from Bacillus thuringiensis -transgenic and non-transgenic maize species by CZE

2009 ◽  
Vol 32 (21) ◽  
pp. 3801-3808 ◽  
Author(s):  
Petra Sázelová ◽  
Václav Kašička ◽  
Elena Ibáñez ◽  
Alejandro Cifuentes
2012 ◽  
Vol 134 (3) ◽  
pp. 1607-1615 ◽  
Author(s):  
Petra Sázelová ◽  
Václav Kašička ◽  
Carlos Leon ◽  
Elena Ibáñez ◽  
Alejandro Cifuentes

1999 ◽  
Vol 112 (5) ◽  
pp. 613-622 ◽  
Author(s):  
J.V. Jester ◽  
T. Moller-Pedersen ◽  
J. Huang ◽  
C.M. Sax ◽  
W.T. Kays ◽  
...  

In vivo corneal light scattering measurements using a novel confocal microscope demonstrated greatly increased backscatter from corneal stromal fibrocytes (keratocytes) in opaque compared to transparent corneal tissue in both humans and rabbits. Additionally, two water-soluble proteins, transketolase (TKT) and aldehyde dehydrogenase class 1 (ALDH1), isolated from rabbit keratocytes showed unexpectedly abundant expression (approximately 30% of the soluble protein) in transparent corneas and markedly reduced levels in opaque scleral fibroblasts or keratocytes from hazy, freeze injured regions of the cornea. Together these data suggest that the relatively high expressions of TKT and ALDH1 contribute to corneal transparency in the rabbit at the cellular level, reminiscent of enzyme-crystallins in the lens. We also note that ALDH1 accumulates in the rabbit corneal epithelial cells, rather than ALDH3 as seen in other mammals, consistent with the taxon-specificity observed among lens enzyme-crystallins. Our results suggest that corneal cells, like lens cells, may preferentially express water-soluble proteins, often enzymes, for controlling their optical properties.


2012 ◽  
Vol 65 (11) ◽  
pp. 1548 ◽  
Author(s):  
Yuki Kohno ◽  
Nobuhumi Nakamura ◽  
Hiroyuki Ohno

Mixtures of some ionic liquids (ILs) and water show reversible phase change between a homogeneous mixture and phase-separated state by a small change in temperature. Some water-soluble proteins have been migrated from the aqueous to the IL phase. When tetrabutylphosphonium 2,4,6-trimethylbenzenesulfonate was used as an IL, cytochrome c (Cyt.c) was found to be extracted from the water phase to the IL phase. Conversely, both horseradish peroxidase (HRP) and azurin remained in the aqueous phase. This selective extraction was comprehended to be due to the difference in solubility of these proteins in both phases. The separated aqueous phase contained a small amount of IL, which induced the salting-out of Cyt.c. On the other hand, condensed IL phase promoted the salting-in of Cyt.c. As a result, Cyt.c was preferably dissolved in the hydrated IL phase rather than aqueous phase. In the case of HRP, there was only a salting-out profile upon increasing the concentration of IL, which induced selective dissolution of HRP in the aqueous phase. These results clearly suggest that the profile of salting-out and salting-in for proteins is the key factor to facilitate the selective extraction of proteins from aqueous to the IL phase.


Author(s):  
L. A. Chudinova ◽  
◽  
D. R. Yusupov ◽  

We studied the growth rate of rye seedlings, as well as the dynamics of the content of soluble proteins and proline in the shoots during their adaptation to sharp (300 mM NaCl once, exposure time 9 days) and gradual (100 mM NaCl, then 100 mM NaCl after 2 days to the final concentration of 400 mM) salinity with sodium chloride in the presence or absence of thermal hardening (+40°C, 3 h). The established dy-namics of the content of proline and soluble proteins in the shoots suggests that the formation of re-sistance to salinity is determined by the high constitutive level of proline, as well as the stress-inducible synthesis of proline and water-soluble proteins. Thermal pretreatment of the seedlings stimulated their constitutive stability to a greater extent. The detected metabolic changes are obviously related to one of the possible mechanisms of the protective effect of thermal hardening on subsequent salinization.


Author(s):  
О. Sherstoboeva ◽  
А. Krzyhanivsky ◽  
А. Bunas

Antagonistic microorganisms, producing bactericidal and fungicidal substances, spread in space and occupy various ecological niches. Antagonistic action of microorganisms can be combined with a number of other properties that can be used by humans for their own purposes. Microorganisms — agents of biological products often have a multifunctional effect on the components of the agroecosystem, which under the influence of various environmental factors could have positive and negative consequences. The aim of the study was to study the effect of new highly active entomopathogenic strains of Bacillus thuringiensis on non-target objects — components of the biocenosis of the apple orchard. When developing technologies for biocontrol of the number of apple trees pests using B. thuringiensis revealed an additional positive protective effect — reducing the number of pathogens of fungal diseases on the leaf surface. Treatment of apple leaves with a liquid culture of strain B. thuringiensis 0376 after 72 hours of application reduced the number of scab of Fusicladium dendriticum by 7 times, and the pathogen of monolisis of Monilia fructigena — 9 times. Strain B. thuringiensis 0371 showed the highest level of antagonism, because in vitro completely inhibited the growth and development of micromycetes on the surface of the nutrient medium. On the leaf surface, the application of culture strain 0371 reduced the number of Fusicladium dendriticum by 92%, and Monilia fructigena — by 86% after 72 hours of treatment. In a field experiment when treating apple trees with a culture of this strain, scab development decreased by 7.1%. Strain B. thuringiensis 787 did not show antagonism against phytopathogenicmicromycetes during co-cultivation on nutrient medium, which may be explained by its inability to produce water-soluble exotoxin, in contrast to strains of B. thuringiensis, which are antagonists of scab and apple monolisis. Strain B. thuringiensis 0371 requires further research and development of its formulations, because it is promising for the creation of a complex biological product with insect-fungicidal properties for use in ecological and agriculture friendly technologies.


2016 ◽  
Vol 33 (11) ◽  
pp. 2874-2884 ◽  
Author(s):  
Victor Sojo ◽  
Christophe Dessimoz ◽  
Andrew Pomiankowski ◽  
Nick Lane

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