Properties and effect of NaCl-salinity on Wheat SSPnuclease activation during development tolerant and sensitive seedling
محل انتشار: دومین همایش بیوتکنولوژی کشاورزی
سال انتشار: 1388
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,651
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شناسه ملی سند علمی:
AGRIBIOTECH02_021
تاریخ نمایه سازی: 9 اردیبهشت 1389
چکیده مقاله:
Single-strand-preferring nucleases (SSPN) (EC3.1.30.1) selectively cleave internucleotide bonds in single stranded regions of predominantly duplex DNA and DNA RNA hybrids and extensively degrade denatured DNA and RNA. The functions of singlestrand- preferring nuclease in plants are unknown. We have monitored this nuclease activity in shoots of wheat [T. aestivum (L.)] seeds were germinated in distilled water (control treatment) or in 120 mM NaCl solution (salt treatment), and SSPNs were purified from different parts of the seedlings which must be catalyzed by endonuclease(s) capable of digesting dsDNA and ssDNA. Plants have two major classes of endonucleases active towards dsDNA and ssDNA, Zn+2-dependent endonuclease and Ca+2-dependent endonuclease.
کلیدواژه ها:
Enzyme effectors – SSP Nuclease - RNase - Salinity - T. Aestivum
نویسندگان
Sedigheh Hatami Gigloo
Pasteur Institute of Iran(Research & Production complex-۲۵th km Tehran Karaj Highway.Tehran.Iran
Ramin Hosseini
Imam Khomeini international University, Ghanvin.Iran
Hossein Askari
Agricultural Biotechnology Research Institute of Iran (ABRII), Mahdasht Road, Karaj,Iran
Dariush Norouzian
Pasteur Institute of Iran(Research & Production complex