Soybean seedling

Watanabe, H., et al. (1991). Aldehyde-enhanced photon emission from crude extracts of soybean seedlings. In Stanley, P. E., and Kricka, L. J. (eds.), Biolumin. Chemilumin., Proc. Int. Symp., 6th 1990, pp. 273-276. Wiley, Chichester, UK. 

Meyer, R.F. Boyer, J.S. (1981). Osmoregulation, solute distribution, and growth in soybean seedlings having low water potentials. Planta, 151,482-9. 

Czarnecka, E., Edelman, L., Schoffl, F. Key, J.L. (1984). Comparative analysis of physical stress responses in soybean seedlings using cloned heat shock cDNAs. Plant Molecular Biology, 3, 45-58. 

Lin, C.Y., Roberts, J.K. Key, J.L. (1984). Acquisition of thermotolerance in soybean seedlings synthesis and accumulation of heat shock proteins and their cellular localization. Plant Physiology, 74,152-60. 

Figure 4. Dependence of glyceollin content (Q) of soybean seedlings and amount of Phytophthora affected tissue (a) on the concentration of L-AOPP. Reproduced with permission from Ref. 51. Copyright 1982, Physiological Plant Pathology.

Damage Induced by Short-Term Ozone Exposure, Cucumber and soybean seedlings of ages determined earlier to be overtly sensitive to fixed dose and dose-rates of ozone (Table I) were exposed to 45 5 pphm ozone for periods up to 90 min. Some... 

PAL activity in soybean seedlings was increased by several herbicides such as DPX-4189, glyphosate and acifluorfen [112,113]. Also, the activities of PAL and tyrosine ammonia lyase (TAL) in both maize and soybean seedlings were also increased by alachlor [110] and metolachlor [111]. 

The application of malonyl-a-aminopyridine (37) was claimed in shampoo as a coupler (81GEP3009833). The 3-butyl derivative of malonyl-a-aminopyridine (694, R = Bu) inhibited senescence of illuminated soybean seedlings under low carbon dioxide conditions, but did not decrease leaf light transmission at ambient carbon dioxide levels (84MI14). 3-Arylazo derivatives of malonyl-a-aminopyridine (694, R = Ar—N= N—) are used as dyestuffs, and the effect of the substituents of the aryl ring on the color of azo dyes was investigated (89MI6). 

Graham TL. 1991. Flavonoid and isoflavonoid distribution in developing soybean seedling tissues and in seed and root exudates. Plant Physiol 95 594—603. 

In soybean seedlings in-vivo supply of cadmium and lead was reported to stimulate the respiration rate (Lee et al., 1976a, b) this effect was ascribed to a demand for ATP production through oxidative phosphorylation because photophosphorylation was reduced. In vitro, several metal ions were effective inhibitors of the mitochondrial respiratory electron transport chain (Kleiner, 1974 Koeppe, 1977) Koeppe (1977) considered the inhibition of the electron transfer at the terminal NADH-oxidase to be specific for cadmium. 

While the flavonoids suppress oxygen uptake in isolated mitochondria and oxygen evolution from chloroplasts, there has been too little work to establish these organelle effects as the only mechanisms of action. Flavonoids are known to protect membrane lipids against destructive reactions and, based on current evidence, these compounds do not readily fit the model of Figure 11.2. The flavonol rutin did not show an effect on soybean seedling water relations.64 It is... 

Hizukuri, S., Fujii, M., and Nikuni, Z. 1961. Effect of temperature during germination on the crystalline type of starch in soybean seedlings. Nature (Lond.) 192, 239-240. 

Ferulic and p-coumaric acids altered the water balance of grain sorghum and soybean seedlings (55,74). Even at treatment levels that were below the threshold for short-term growth reduction, water stress was evident by the depression of seedling water potential. Sorghum treated with 0.25 mM ferulic or p-coumaric acids had midday leaf water potentials of approximately -10 bars, compared to -5 bars for the controls. Treatments with phenolic compounds that reduced growth also were correlated with partial stomatal closure (55,63,64). 

Subsequent tests with velvetleaf, Kodkia, Jerusalem artichoke, and cocklebur showed that their allelopathic action altered water balance (55,94,95). Growth reductions in sorghum and soybean seedlings in nutrient solution amended with extracts from these weeds correlated with high diffusive resistances and low leaf water potentials. Stomatal closure occurred in plants treated with the more concentrated extracts. Depressions in water potential were due to a reduction in both turgor pressure and osmotic potential. A lower relative water content was also found in velvetleaf-treated plants. These impacts on water balance were not from osmotic factors. Allelochemicals from these weeds have not been thoroughly ascertained, but the present evidence shows that some contain phenolic inhibitors. Lodhi (96) reported that Kodkia contains ferulic acid, chlorogenic acid, caffeic acid, myricetin, and quercetin. As noted earlier, an effect on plant-water relationships is one mechanism associated with the action of ferulic acid. 

D also Interacts with lAA to reverse glyphosate growth Inhibition In tissue cultures (l i, 1701. but not In Intact plants (121) Extractable PAL activity In soybean seedlings was Inhibited by 2,4-D (1711 and 2,4-D lowered PAL activity Increases caused by glyphosate (1711. The herbicide has also been examined for Interactions of Induction and secretion of pathogenesis-related proteins In tobacco suspension cultures (1721. 

Figure 5. Correlation of extractable PAL activity with soluble hydroxyphenollc levels In axes of light-grown soybean seedlings 48 h after herbicide treatment. (Redrawn with permission from Ref. 122. Copyright 1983 Weed Science Society of America).

Hegeman, C.E., and Grabau, E.A., 2001, A novel phytase with sequence similarity to purple acid phosphatases is expressed in cotyledons of germinating soybean seedlings. Plant Physiol. 126 1598-1608. 

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