نتایج جستجو برای: plant defensin
تعداد نتایج: 397389 فیلتر نتایج به سال:
Background and Objectives: Antioxidant alpha lipoic acid and β-defensin 1 protein may have a positive effect on the quality of sperm parameters. In this study, the effect of sperm incubation with alpha lipoic acid antioxidant and β-defensin 1 protein were assessed on sperm motility and viability at different times. Methods: In this experimental study, routine semen analysis was carried out o...
The flowers of the solanaceous plants ornamental tobacco (Nicotiana alata) and petunia (Petunia hybrida) produce high levels of defensins during the early stages of development. In contrast to the well-described seed defensins, these floral defensins are produced as precursors with C-terminal prodomains of 27 to 33 amino acids in addition to a typical secretion signal peptide and central defens...
Plant defensins are active against plant and human pathogenic fungi (such as Candida albicans) and baker's yeast. However, they are non-toxic to human cells, providing a possible source for treatment of fungal infections. In this study, we characterized the mode of action of the antifungal plant defensin HsAFP1 from coral bells by screening the Saccharomyces cerevisiae deletion mutant library f...
Hs-AFP1, an antifungal plant defensin from seed of the plant Heuchera sanguinea, was radioactively labeled using t-butoxycarbonyl-[35S]L-methionine N-hydroxysuccinimidyl ester, resulting in a 35S-labeled peptide with unaltered antifungal activity. [35S]Hs-AFP1 was used to assess binding on living hyphae of the fungus Neurospora crassa. Binding of [35S]Hs-AFP1 was found to be competitive, revers...
From differential display studies performed on oil palm (Elaeis guineensis Jacq.) tissue cultures bearing or lacking an epigenetic homeotic flowering abnormality, known as mantled, EGAD1, a gene coding for a putative plant defensin, has been identified and characterized. In whole plants, transcripts of the EGAD1 gene were detected only in inflorescences. The closest characterized relative of th...
Plant Defensin Peptides have Antifungal and Antibacterial Activity Against Human and Plant Pathogens
Antimicrobial peptides represent an expanding family of peptides involved in innate immunity of many living organisms. They show an amazing diversity in their sequence, structure, and mechanism of action. Among them, plant defensins are renowned for their antifungal activity but various side activities have also been described. Usually, a new biological role is reported along with the discovery...
To defend themselves against fungal pathogens, plants produce numerous antifungal proteins and peptides, including defensins, some of which have been proposed to interact with fungal cell surface glycosphingolipid components. Although not known as a phytopathogen, the filamentous fungus Neurospora crassa possesses numerous genes similar to those required for plant pathogenesis identified in fun...
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