نتایج جستجو برای: phenylalanine ammonia-lyase

تعداد نتایج: 50384  

2006
C. W. Abell W. J. Stith D. S. Hodgins

Phenylalanine ammonia-lyase, which irreversibly deaminates phenylalanine and tyrosine, markedly inhibited the growth of human leukemic and murine L5178Y lymphoblasts in vitro but had a negligible effect on resting (nondividing) normal lymphocytes. These studies also demonstrated that phenylalanine ammonia-lyase inhibited DNA synthesis in leukemic cells at least as effectively as did asparaginas...

Journal: :Cancer research 1972
C W Abell W J Stith D S Hodgins

Phenylalanine ammonia-lyase, which irreversibly deaminates phenylalanine and tyrosine, markedly inhibited the growth of human leukemic and murine L5178Y lymphoblasts in vitro but had a negligible effect on resting (nondividing) normal lymphocytes. These studies also demonstrated that phenylalanine ammonia-lyase inhibited DNA synthesis in leukemic cells at least as effectively as did asparaginas...

Journal: :Catalysts 2022

Trans-cinnamic acid and p-coumaric are valuable intermediates in the synthesis of flavonoids widely employed food, flavor pharmaceutical industries. These products can be produced by deamination L-phenylalanine L-tyrosine catalyzed phenylalanine ammonia lyase or tyrosine lyase. Phenylalanine ammonia-lyase (PAL, EC 4.3.1.5) from Rhodotorula glutinis do not exhibit strong substrate specificity co...

Journal: :Plant physiology 1985
L D Beaudoin-Eagan T A Thorpe

Both phenylalanine ammonia lyase and tyrosine ammonia lyase were detected in tobacco (Nicotiana tabacum L. Wisconsin 38) callus. The enzymes were separated from each other by Sephadex G-200 column chromatography. Increased activity of tyrosine ammonia lyase was observed during culture of tobacco callus under shoot-forming conditions, while activity of phenylalanine ammonia lyase increased durin...

Journal: :Plant physiology 1972
G Engelsma

Divalent Mn ions cause an increase in the level of phenylalanine ammonia-lyase in gherkin hypocotyls. With the exception of Mg ions, which had a small effect, no other metal ion has so far been found which could replace the Mn ion in this respect. Invertase and peroxidase were not significantly affected by the Mn treatment. The increase in phenylalanine ammonialyase activity is explained by the...

Journal: :Plant physiology 1971
H Hyodo S F Yang

The effect of ethylene on the development of phenylalanine ammonia-lyase activity in segments excised from the epicotyl apex of pea seedling was studied. Although there was some increase in phenylalanine ammonia-lyase activity in segments not treated with ethylene, a marked increase in phenylalanine ammonia-lyase activity occurred in ethylene-treated tissues during the incubation. The induction...

Journal: :journal of crop protection 2014
hadis mostafanezhad navazollah sahebani shaheen nourinejhad zarghani

the effect of salicylic acid (sa) on induction of resistance against root-knot nematode (meloidogyne javanica) and the effect of m. javanica to induce biochemical defense responses in tomato (solanum lycopersicum l.) roots at six-leaf stage were investigated. meanwhile, the effect of different concentrations of sa on mortality of second stage juveniles of m. javanica was examined. changes in th...

Journal: :علوم باغبانی ایران 0
سمیه قاسمی عمران دانشجوی سابق کارشناسی ارشد، دانشکده علوم کشاورزی دانشگاه گیلان محمود قاسم نژاد استادیار، دانشکده علوم کشاورزی دانشگاه گیلان عبداله حاتم زاده دانشیار دانشکده علوم کشاورزی دانشگاه گیلان داود بخشی استادیار دانشکده علوم کشاورزی دانشگاه گیلان

the close to impossible correct controlling of the temperature and light intensity is the main limiting factors of growing plants in the plastic covered greenhouses. quality and vase life of cut flowers are mostly influenced by greenhouse temperature. alstroemeria needs cold temperature for growth and flowering. in the current study, the such changes in vase life and flower quality as stem leng...

Journal: :Journal of Biological Chemistry 1971

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