Enhanced Activity of the Soluble Ribonucleic Acid Polymerase from 2,4-Dichlorophenoxyacetic Acid-treated Maize Seedlings.
نویسندگان
چکیده
منابع مشابه
Interaction of 2,4-Dichlorophenoxyacetic Acid, Ethylene Chlorohydrin and Glutathione in the Stability of the Microsomal Ribonucleic Acid of Excised Cotton Cotyledons
The nucleic acids ot isolated plant tissues were first shown to be affected by plant growth regulators by Silberger and Skoog (1953). They showed that indoleacetic acid treatment would increase the level of ribonucleic acid (RNA) and deoxyribonucleic acid in tobacco pith tissue. Recently, experiments with excised stems of cucumber seedlings (West, Hanson and Key, 1960), and excised cotton cotyl...
متن کاملGreater Length of Ribonucleic Acid Synthesized by Chromatin-bound Polymerase from Auxin-treated Soybean Hypocotyls.
An investigation has been made of the RNA synthesized by chromatin-bound RNA polymerase from soybean hypocotyls (Glycine max var. Wayne). Polymerase activity is 4- to 5-fold higher with chromatin from tissue treated with 2,4-dichlorophenoxyacetic acid, a synthetic auxin, compared to untreated tissue. Thin layer chromatography of the RNA hydrolysis products and acrylamide gel electrophoresis of ...
متن کامل2,4-Dichlorophenoxyacetic Acid-enhanced Phosphorylation of Soybean Nuclear Proteins.
In vitro nuclear protein phosphorylation is enhanced in nuclei isolated from 2,4-dichlorophenoxyacetic acid (2,4-d)-treated mature soybean (Glycine max) hypocotyl relative to nuclei from untreated tissue. Increased nuclear protein phosphorylation correlates with increased levels of nuclear protein kinase activity. These changes generally parallel previously reported 2,4-d-enhanced RNA polymeras...
متن کاملNitrogenase activity in wheat seedlings bearing para-nodules induced by 2,4-dichlorophenoxyacetic acid (2,4-D) and inoculated with Azospirillum.
Nitrogenase activity (C2H2 reduction) was demonstrated in seedlings of wheat roots bearing para-nodules induced by 2,4-dichlorophenoxyacetic acid (2,4-D) and inoculated with Azospirillum brasilense. Increased nitrogenase activity was observed in inoculated para-nodulated seedlings as compared to inoculated roots not treated by 2,4-D under the conditions of assay used. 2,4-D had no stimulating e...
متن کاملSome effects of 2,4-dichlorophenoxyacetic acid on the oxidation-reduction state of soybean seedlings.
During a study of the effect of 2,4-dichlorophenoxyacetic acid on the soluble nucleotides in soybean seedlings (1)) a nonnucleotide compound accumulated in the treated seedlings. The same compound was found in high concentrations in immature soybean seeds that would not germinate (2). The compound inhibited seed germination and markedly affected respiration and phosphorylation of both intact so...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Plant physiology
دوره 50 5 شماره
صفحات -
تاریخ انتشار 1972