The rate of coleoptile elongation varies between different rice varieties that are grown under water during the germination stage. Compared to sensitive varieties, submergence-tolerant rice exhibits substantial coleoptile elongation in order to uptake oxygen (O2) from the surface and thus have a better chance to survive water stress. We conducted RNA-seq analysis in order to investigate 7-day-o...

The possible correlation between blue light-dependent phosphorylation of a 11 6-kD protein and phototropic responses of etiolated oat (Avena sativa 1.) seedlings was tested by a micromethod for protein phosphorylation. Quantitation of the basipetal distribution of this protein showed that the in vitro 32P phosphorylation values declined exponentially from tip to node, with more than 50% of the ...

1. BONNER, J. and FOSTER, R. J. The growth-time relationships of the auxin-induced growth in Avena coleoptile sections. Jour. Exptl. Bot. 6: 293-302. 1955. 2. COOIL, B. and BONNER, J. Effects of calcium and potassium ions on the auxin-induced growth of Avena coleoptile sections. Planta (In press). 3. HEYN, A. N. J. Der Mechanisms der Zellstreckung. Rec. trav. bot. neerl. 28: 113-244. 1931. 4. H...

The present study was conducted to investigate the evaluation of antimycin A (AA) as a modulator alternative respiratory pathway (AP) on intensity growth processes and some physiological parameters etiolated wheat seedlings, such maximum length root, first leaf coleoptile, fresh dry weights at whole plant level, area well relative water content, saturation deficit, degree succulence sclerophyll...

objective: in order to investigate effects of different concentrations of poly amines sprimidin and putrescine on germination of arg cultivar under salinity stress. methods: this experiment was conducted as factorial based on completely randomized design with four replicates in agronomy and plant breeding laboratory, agricultural department, islamic azad university, varamin-pishva branch in spr...

Objective: In order to investigate effects of different concentration of gibberlic acid and poly amines on germination and early growth of Pishtaz cultivar under salinity stress. Methods: The experiment was carried out as factorial based on completely randomized design with four replicates in laboratory of agronomy and plant breeding of agricultural department, Islamic Azad University, Varamin-...

Objective: In order to investigate effects of different concentration of gibberlic acid and poly amines on germination and early growth of Pishtaz cultivar under salinity stress. Methods: The experiment was carried out as factorial based on completely randomized design with four replicates in laboratory of agronomy and plant breeding of agricultural department, Islamic Azad University, Varamin-...

In the previous paper (2) we reported that a substantial increase in gross cell wall synthesis occurs when oat coleoptile cylinders whose elongation is inhibited by Ca+ + are treated with IAA; this effect of auxin is direct in the sense that it is due to hormone action rather than to the occurrence of elongation. This paper presents information on the components of the cell wall whose synthesis...

Introduction One fact that is agreed upon in the literature regarding the mechanism of phototropism is that the growth curvature results from an unequal distribution of auxin. There are at least three hypotheses as to how unilateral illumination causes the unequal distribution: 1. Photoinactivation of auxin on the lighted side of the plant. 2. A differential change in the rate of synthesis of a...

Laboratory, and especially Mr. Philip Abelson, who determined the activity of the various phosphorus samples. We appreciate the interest of Dr. John Lawrence and Mr. Paul C. Abersold and their assistance with x-ray exposures. The investigation was aided by a grant from the Board of Research of the University of California. 'Lawrence, E. O., and Cooksey, P., Phys. Rev., 50, 131 (1936). 2 Chiewit...