Radish seedlings

Figure 1. Linear regression plot of tomato and radish seedling root growth inhibition with varying concentrations of phenyl aliphatic acids. Benzoic acid (V) phenylacetic acid (X) 3-phenyIpiropanoic acid (A) 4-phenylbutanoic acid ( ) trans-cinnamic acid (----) (1).

Figure 2. Linear regression plot of root growth inhibition of tomato and radish seedlings by o and -hydroxyphenyl) acids. o-Hydroxycinnamic acid, (o-hydroxyphenyl) acetic acid ( ) melilotic acid, 2-(o-hydroxyphenyl) butanoic acid ( ) o-hydroxy-benzoic acid, ( -hydroxypheny 1 )acetic acid (0) -hydroxycinnamic acid, =hydroxybenzoic acid, 3-( -hydroxyphenyl) propanoic acid (X) o-coumaryl glucoside, water control (----) (1 ). ...

Takahashi, M., Kawamura, S., Miyakado, M., Sanemitsu, Y., Tanaka, S. (1993) Uptake and translocation of bleaching herbicidal compounds in radish seedlings. Pestic. Sci. 39, 159-177. 

In plastids of etiolated radish seedlings, far-red light stimulated the synthesis of all prenyl chains, but it did not alter the relative concentrations of the various chains synthesized under dark conditions. White light further stimulated chain synthesis, particularly the formation of phytyl chains,370 and a similar situation occurred with barley.371 In contrast, both far-red and white light changed the pattern of carotenoid synthesis in etioplasts of Raphanus seedlings372 and it seems that phytochrome in its excited state controls light-induced synthesis of carotenoid. This synthesis was also... 

Weber, T. and Bach, T.J. (1994) Conversion of acetyl-coenzyme A into 3-hydroxy-3-methylglutarylcoenzyme A in radish seedlings evidence of a single monomeric protein catalyzing a Fe Vquinone-stimulated double condensation reaction. Biochim. Biophys. Acta, 1211,85-96. 

Other plants harmonize because they mature at different times. Radish and carrot seeds are often sown together the larger radish seeds mark the row as you plant, and the quick-emerging radish seedlings hold the soil against rain for the slower-growing carrots. You ll harvest the radishes long before the carrots need the space to fatten. 

Rice lamina inclination test Radish seedling elongation Tomato hypocotyl elongation Wheat leaf-unrolling Pea inhibition ... 

LICHTENTHALER H K, BURKHARDT G, KUHN G and PRENZEL U (1981), Light induced accumulation and stability of chlorophylls and chlorophyll-proteins during chloroplast development in radish seedlings , Z... 

Mevinolin radish seedlings, microsome-bound 2.2 Bach Lichtenthaler 1983 (53)... 

Figure 3. Radish seedlings days old) grown in the dark (upper part) or in the light (lower part) in the presence of mevlnolln from onset of germination. Note the lack of lateral root growth at the high inhibitor concentration.

Figure 4. Mevinolln-induced growth inhibition of the main root of light grown radish seedlings. Mean values + SD from 30 to 50 plants per condition. (Reprinted with permission from Ref. 68. Copyright 1983 Physiologia Plantarum.)...

The increased accumulation of anthocyanins in hypocotyls of mevinolin-treated radish seedlings ( 9) certainly does not simply reflect the routing away of acetate units from sterois (cf. Figure 1) but also reflects a more general response of plants upon treatment with chemicals (95). Inhibitors (see also below) affecting later steps in phytosterol synthesis seem to affect various other products of the isoprenoid pathway before and after squalene formation (95). Secondary effects of such growth... 

Effect of inhibitors affecting late steps in phvtosterol synthesis on growth of radish seedlings. HMG-CoA reductase and enzymes catalyzing late steps of phytosterol synthesis are... 

The cytokinin meteOjolltes isolated front derooted radish seedlings to... 

One main interest in the study of 5-ALAD is its central position in the metabolism at the cross-road between the Shemin pathway and the Beale pathway leading to ALA, and the branched metabolism producing hemes and chlorophylls. Another interest is related to the evolution of energetics in radish seedlings from sowing, which depend, first of the differentiation of mitochondrias, and in later steps, of the development of chloroplasts, when the cotyledons have turned into leaves. 

Raphanatin 7-glucosylzeatin. R. is formed from the cytokinin, zeatin, and it has no cytokinin activity. It is a storage form of zeatin, present in radish seedlings. Glu-cosylation at position 7 of the purine ring probably serves to protect zeatin from enzymatic degradation. 

Gordon ME, Letham DS, Parker CW (1974 a) Regulators of cell division in plant tissues XVIII. The metabolism and translocation of zeatin in intact radish seedlings. Ann Bot38 809-825... 

Gordon ME, Wilson MM, Parker CW, Letham DS (1974b) The metabolism of cytokinins by radish seedlings. In Bieleski RL, Ferguson AR, Cresswell MM (eds) Mechanism of regulation of plant growth. Roy Soc N Z, Wellington, pp 773-780... 

Radish seedlings were grown In the dark and membranes were Isolated as described (3). AACT apd HMGS activity was solubilized using 2% polyoxyethlene ether (Brlj W-1) and Incubation at 30 C. Details will be given elsewhere. 

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