排序方式: 共有55条查询结果,搜索用时 15 毫秒
51.
Raspor Martin Motyka Václav Ninković Slavica Malbeck Jiří Dobrev Petre I. Zdravković-Korać Snežana Simonović Ana Ćosić Tatjana Cingel Aleksandar Savić Jelena Zahajská Lenka Tadić Vojin Dragićević Ivana Č. 《Journal of Plant Growth Regulation》2021,40(1):37-47
Journal of Plant Growth Regulation - Over the last years, cytokinin deficiency has been studied in a variety of plant species, using transgenic expression of cytokinin oxidase/dehydrogenase genes... 相似文献
52.
53.
K. Huyghe M. Small B. Vanhooydonck A. Herrel Z. Tadić R. Van Damme T. Backeljau 《Genetica》2010,138(3):387-393
If alternative phenotypes in polymorphic populations do not mate randomly, they can be used as model systems to study adaptive
diversification and possibly the early stages of sympatric speciation. In this case, non random mating is expected to support
genetic divergence among the different phenotypes. In the present study, we use population genetic analyses to test putatively
neutral genetic divergence (of microsatellite loci) among three colour morphs of the lizard Podarcis melisellensis, which is associated with differences in male morphology, performance and behaviour. We found weak evidence of genetic divergence,
indicating that gene flow is somewhat restricted among morphs and suggesting possible adaptive diversification. 相似文献
54.
Pindolol (PDL) is a potent and specific adrenoreceptor blocking agent. It is widely used in the treatment of hypertension, cardiac arrhythmia and angina pectoris. Molecularly imprinted polymers (MIPs) are synthetic receptors having potential applications in drug delivery systems and devices such as diagnostic sensors. In the present work, ab initio quantum mechanical simulations and computational screening were used to identify functional monomer having best interactions with PDL. A virtual library of 16 functional monomers was built and the possible minimum energy conformation of the monomers and PDL were calculated using Hartree-Fock (HF) method for the synthesis of PDL imprinted polymer. The interaction energy between functional monomer and the template were corrected by means of basis set superposition error (BSSE) in all pre-polymerization complexes. The hydrogen bonding between PDL and functional monomer was evaluated by changes in bond lengths before and after complex formation. The virtual template-monomer complex with highest interaction energy is more stable during the polymerization and leads to high selectivity and specificity toward the template. The interaction energy of PDL was found to be the highest with itaconic acid followed by 4-vinyl pyridine and least with acrylonitrile. Taking a spectroscopic viewpoint, results obtained from analysis of the harmonic infrared spectrum were examined. Red and blue shifts related to the stretching frequencies of either donors or acceptors of protons were identified and compared experimentally. Stoichiometric mole ratio of template to functional monomer was optimized and confirmed by UV visible spectra titrations. The theoretical results were correlated by evaluation of binding parameters of MIPs. The experimental binding results were in good agreement with theoretical computations. 相似文献
55.
S. Katla B. Karmakar S.R.R. Tadi N. Mohan B. Anand U. Pal S. Sivaprakasam 《Journal of applied microbiology》2019,126(5):1438-1453