نتایج جستجو برای: ژن nptii

تعداد نتایج: 15986  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده کشاورزی 1393

بیماری های قارچی شامل مرگ گیاهچه، پوسیدگی های ریشه و لکه برگی ها از عوامل عمده کاهش رشد و تولید چغندرقند در سراسر جهان به شمار می روند. بیان پروتئین های مرتبط با بیماری زایی نظیر کیتینازها، یکی از پاسخ های دفاعی گیاهان در مقابل بیمارگرها محسوب می گردد. آنزیم های کیتیناز از طریق تجزیه دیواره های سلولی قارچ ها در افزایش مقاومت گیاهان در مقابل دامنه وسیعی از بیمارگرهای قارچی نقش قابل توجهی دارند. ...

Journal: :Journal of Plant Biochemistry and Biotechnology 2023

Genetically modified (GM) food crops for desired traits have been approved in some of the countries. The approval status a GM event varies from country to country. In India, Bt cotton is only crop. So far, no crop has got regulatory country, which may be considered as unauthorized (UGM) Indian context. entry UGM events needs checked imported consignments well marketplace. present study, screeni...

2015
Maria Luiza Peixoto de Oliveira Ed Stover James G Thomson

The use of positive selectable marker genes is widespread in plant genetic transformation allowing transgenic cells to grow while repressing non-transgenic cells. Negative selectable markers, on the contrary, allow the repression or ablation of transgenic cells. The codA gene of Escherichia coli encodes cytosine deaminase that hydrolyzes 5-fluorocytosine (5-FC) into the cytotoxic compound 5 flu...

2017
Xia An Jingyu Zhang Yiwen Liao Lijun Liu Dingxiang Peng Bo Wang

Ramie is an economically important industrial fiber crop widely planted in China, India, and other Southeast Asian and Pacific Rim countries. It plays an important role in China's economy, where ramie farming, industry, and trade provide livelihood support to about five million people. However, poor fiber production resulting from leaf senescence and leaf abscission is a significant problem. In...

2015
Lei Ma Fugui Zhu Zhenwei Li Jianfu Zhang Xin Li Jiangli Dong Tao Wang Daichang Yang

The deterioration of rice grain reduces the quality of rice, resulting in serious economic losses for farmers. Lipoxygenases (LOXs) catalyze the dioxygenation of polyunsaturated fatty acids with at least one cis,cis-1,4-pentadiene to form hydroperoxide, which is a major factor influencing seed longevity and viability. Recently, genome editing, an essential tool employed in reverse genetics, has...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Johann de Vries Wilfried Wackernagel

The active uptake of extracellular DNA and its genomic integration is termed natural transformation and constitutes a major horizontal gene-transfer mechanism in prokaryotes. Chromosomal DNA transferred within a species can be integrated effectively by homologous recombination, whereas foreign DNA with low or no sequence homology would rely on illegitimate recombination events, which are rare. ...

2003
J. A. Teixeira da Silva

Agrobacterium-mediated plant genetic transformation requires a two-step process for its success: selection and regeneration of transformed tissues, and the elimination of the transformation vector, Agrobacterium. This study uses carbenicillin (CA), cefotaxime (CF) and vancomycin (VA) singly, or in combination, to eliminate Agrobacterium tumefaciens LBA4404 and AGLO growing on Agrobacterium-favo...

2013
Shamsul H. Prodhan K. Nagamiya A. Komamine H. Morishima

Rice is one of the most important food crops in the world. It is greatly affected by various abiotic stresses. Among them, to improve the complex stress salinity we introduced a desired gene katE, a catalase gene of Escherichia coli, and reporter gene GUS into the indica rice cultivar Kasalath. Plant survival under different salt water concentration was checked. Transformation was carried out u...

Journal: :Molecular microbiology 2003
Jorge L Badel Kinya Nomura Sruti Bandyopadhyay Rena Shimizu Alan Collmer Sheng Yang He

Pseudomonas syringae pv. tomato DC3000 is a pathogen of tomato and Arabidopsis that injects virulence effector proteins into host cells via a type III secretion system (TTSS). TTSS-deficient mutants have a Hrp- phenotype, that is, they cannot elicit the hypersensitive response (HR) in non-host plants or pathogenesis in host plants. Mutations in effector genes typically have weak virulence pheno...

Journal: :Cellular & molecular biology letters 2004
Anna Przetakiewicz Agnieszka Karaś Wacław Orczyk Anna Nadolska-Orczyk

Three combinations of Agrobacterium tumefaciens strains and vectors were used in the transformation of selected Polish wheat cultivars. The combinations were: two hypervirulent strains, AGL1, containing the pDM805 binary plasmid, and EHA101, containing pGAH; and the common Agro strain LBA4404, harboring the super-binary pTOK233 vector. pDM805 contained bar under the control of Ubi1 promoter, pG...

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