THE GROWTH AND RESPIRATION OF THE AVENA COLEOPTILE

The Growth and Respiration of the Avena Coleoptile

1. Transport of the plant growth hormone into the Avena coleoptile as well as the action of the hormone on cell elongation in the coleoptile are shown to depend upon aerobic metabolism. 2. Crystalline auxine, in contrast with impure preparations, affects neither the magnitude nor the respiratory quotient of coleoptile respiration. 3. Increasing age of the coleoptile cell decreases its rate of e...

On the Relation between Growth and Respiration in the Avena Coleoptile

1. The growth of Avena coleoptile sections in sucrose and auxin solutions is inhibited by various substances which are known to act as dehydrogenase inhibitors. 2. Iodoacetate, which is particularly active in this connection, inhibits all growth at a concentration of 5 x 10(-5) M, but produces only a slight inhibition of oxygen uptake. 3. The growth inhibition by iodoacetate is completely remov...

an investigation about the relationship between insurance lines and economic growth; the case study of iran

مطالعات قبلی بازار بیمه را به صورت کلی در نظر می گرفتند اما در این مطالعه صنعت بیمه به عنوان متغیر مستفل به بیمه های زندگی و غیر زندگی شکسته شده و هم چنین بیمه های زندگی به رشته های مختلف بیمه ای که در بازار بیمه ایران سهم قابل توجهی دارند تقسیم میشود. با استفاده از روشهای اقتصاد سنجی داده های برای دوره های 48-89 از مراکز ملی داده جمع آوری شد سپس با تخمین مدل خود بازگشتی برداری همراه با تعدادی ...

The Relation Op Protoplasmic Streaming- in the Avena Coleoptile to Respiration and Auxin Transport

The Plasma Membrane of Avena Coleoptile

Treatment of living protoplasts from the Avenia coleoptile with enzymes and chemicals has provided new information about the external surface of the plasma membrane. Treatments with selected detergents and polyene antibiotics indicate that little sterol is present. The lysis of protoplasts in carboxymethyl-RNase which is enzymatically almost inactive provides strong evidence that the lysis prev...