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排序方式: 共有568条查询结果,搜索用时 15 毫秒
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Kushalan Sharanya Yathisha Undiganalu Gangadharappa Khyahrii S Aloysius Hegde Smitha 《In vitro cellular & developmental biology. Plant》2022,58(3):382-391
In Vitro Cellular & Developmental Biology - Plant - Curculigo orchioides (Kali Musli) is a medicinal plant commonly used in the Indian and Chinese traditional medicine system to treat jaundice... 相似文献
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Shyamala Hegde Pullabhatla Srinivas Gudipati Muralikrishna 《Analytical biochemistry》2009,387(1):128-129
We report here, for the first time, a single-step method for the synthesis of 4-nitrophenyl ferulate (4NPF), a spectrophotometric substrate for the assay of feruloyl esterases by dehydrative coupling of ferulic acid and 4-nitrophenol. 相似文献
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Florent Angly Merry Youle Bahador Nosrat Shailaja Srinagesh Beltran Rodriguez-Brito Patrick McNairnie Gordafaried Deyanat-Yazdi Mya Breitbart Forest Rohwer 《Environmental microbiology》2009,11(11):2863-2873
Roseophage SIO1 is a lytic marine phage that infects Roseobacter SIO67, a member of the Roseobacter clade of near-shore alphaproteobacteria. Roseophage SIO1 was first isolated in 1989 and sequenced in 2000. We have re-sequenced and re-annotated the original isolate. Our current annotation could only assign functions to seven additional open reading frames, indicating that, despite the advances in bioinformatics tools and increased genomic resources, we are still far from being able to translate phage genomic sequences into biological functions. In 2001, we isolated four new strains of Roseophage SIO1 from California near-shore locations. The genomes of all four were sequenced and compared against the original Roseophage SIO1 isolated in 1989. A high degree of conservation was evident across all five genomes; comparisons at the nucleotide level yielded an average 97% identity. The observed differences were clustered in protein-encoding regions and were mostly synonymous. The one strain that was found to possess an expanded host range also showed notable changes in putative tail protein-coding regions. Despite the possibly rapid evolution of phage and the mostly uncharacterized diversity found in viral metagenomic data sets, these findings indicate that viral genomes such as the genome of SIO1-like Roseophages can be stably maintained over ecologically significant time and distance (i.e. over a decade and ∼50 km). 相似文献
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S. R. Srinivas S. N. Hegde H. B. D. Sarkar T. Shivanandappa 《Journal of morphology》1995,224(3):293-301
The female rock lizard, Psammophilus dorsalis (Agamidae), lays multiple clutches of eggs over a period of 6 months (June–December). The later clutches of eggs are presumably fertilized by sperm stored from earlier matings, since testes and epididymides are regressed after August. Sperm storage is seen in pockets of the anterior vaginal region of the oviduct. Sperm recovered from the uterovaginal region are intact and motile. Discrete granules resembling the secretory granules present in the vas deferens also occur along with sperm in the vaginal sperm storage structures. The PAS-positive granules and acid phosphatase form important components of the secretions present along with sperm in the vaginal sperm storage pockets. The epithelium of the vaginal sperm storage pockets is PAS-positive and contains lipid. Several enzymes, including hydroxysteroid dehydrogenases and hydrolases, are localized histochemically in the epithelium of the vaginal sperm storage pockets. A possible role is suggested for the secretions from the male reproductive tract during sperm storage in the oviduct, in which physiological “dormancy” of the sperm during their storage may be maintained by the metabolic “milieu” in the vaginal sperm storage pockets by a mechanism similar to that effecting dormancy of the epididymal sperm in the male. © 1995 Wiley-Liss, Inc. 相似文献