نتایج جستجو برای: mera gene
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مقدمه: برخی باکتری‌ها با داشتن ژن merA کدکننده آنزیم کاهنده جیوه معدنی، توانایی ژنتیکی برای حذف جیوه از طریق احیای جیوه معدنی و تبدیل آن به شکل گازی و در نتیجه پاکسازی منطقه آلوده را دارند. هدف مقاله حاضر، جداسازی ژن merA از باکتری‌های مقاوم به جیوه و همسانه‌سازی آن در وکتور بیانی مناسب به منظور طراحی وکتور پایه‌ای برای تولید این آنزیم در باکتری و استفاده از آن برای پاکسازی محیط‌زیست است. مواد ...
Mercuric reductase, MerA, is a key enzyme in bacterial mercury resistance. This homodimeric enzyme captures and reduces toxic Hg2+ to Hg0, which is relatively unreactive and can exit the cell passively. Prior to reduction, the Hg2+ is transferred from a pair of cysteines (C558' and C559' using Tn501 numbering) at the C-terminus of one monomer to another pair of cysteines (C136 and C141) in the ...
A key to 23 species of Neotropical Lucilia, including six new species is given. Information is provided on all known Lucilia species found in the region, including the West Indies, Galápagos Islands, and Central and South America. The following six new species are described based on the examination of over 2700 adult specimens from Central and South America: Lucilia albofusca sp. nov. from sout...
An experimental approach based on the assembly of genes of a catabolic pathway was used to detect transconjugants in aquatic communities. Resistance to phenylmercury acetate was established in transconjugants when wide-host-range conjugal plasmids containing merB, the gene encoding organomercurial lyase, were transferred to strains from aquatic communities that had been acclimated to inorganic ...
Bu çalışma; Lâdik ilçe merkezine 4 km, Samsun’a ise 54 km kuş uçuşu mesafede bulunan Çakırgümüş köyünün ve 879 m rakımdaki 101/1 101/2 no’lu mera parsellerinin kiralanması talebi üzerine 2017 yılında yürütülmüştür. Çalışmanın amacı vejetasyon etüdü diğer bazı hesaplamalar yapılarak meranın ıslah amaçlı kiralamaya uygunluğunun ihtiyaç fazlası olup olmadığının belirlenmesidir. Lup yöntemiyle yapı...
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