Maize seedlings

Fig. 1. SDS gel analysis of proteins synthesised by excised maize roots incubated at continuous 40 °C. Roots of 3-day-old maize seedlings were excised and incubated at 40 °C for increasing times as indicated. Labelling with [ Sjmethionine was carried out in the final 20 min of the incubation. Proteins were visualised by fluorography. Mol wt distribution in kDa indicated at left. From Cooper Ho (1983).

Anaerobic treatment results in a drastic alteration in the pattern of protein synthesis in maize seedlings (Sachs, Freeling Okimoto, 1980). Pre-existing (aerobic) protein synthesis is repressed while selective synthesis of new polypeptides is initiated (Sachs et al., 1980). This is most likely a plant s natural response to flooding. 

R. Kuchenbuch and A. Jungk, A method for determining concentration profiles at the soil-root interface by thin slicing rhizospheric soil. Plant Soil 68 391 (1982). R. Schonwitz and H. Ziegler, Quantitative and qualitative aspects of a developing rhizosphere microflora of hydroponically grown maize seedlings. Z Pflanzenernahr. Bodenk. 749 623 (1986). 

V. Boeuf-Tremblay, S. Plantureux, and A. Guckert, Influence of mechanical impedance on root exudation of maize seedlings at two developmental stages. Plant Soil /72 279 (1995). 

R. Schonwitz and H. Ziegler, Exudation of water soluble vitamins and some carbohydrates by intact roots of maize seedlings Zea mays L.) into a mineral nutrient solution. Z. Planzenphysiol. 107 1 (1982). 

W. Petersen and M. Bottger, Contribution of organic acids to the acidification in the rhizosphere of maize seedlings. Plant Soil 132A59 (1992). 

J. H. Xia and J. K. M. Roberts, Improved cytoplasmic pH regulation, increased lactate efflux, and reduced cytoplasmic lactate levels are biochemical traits expressed in root tips of whole maize seedlings acclimated to a low-oxygen environment. P/anr P/iy.vto/. 105 651 (1994). 

Figure 6 Sensitivity analysis of maize seedlings to some model parameter values during the first 10 days of uptake. The curves show how phosphorus flux (F) into the roots responds to differential perturbation to the parameters, a (i.e., 5F/8a). (Model parameters are given in Table 1.)...

A. Chaboud and M. Rougier, Effect of root density in incubation medium on root exudate composition of axenic maize seedlings, J. Plant Physiol. 131 602 (1991). 

Doehlert, D.C., Knutson, C.A. and Vesonder, R.E., Phytotoxic effects of fumonisin B, on maize seedling growth, Mycopathologia, 127, 117, 1994. 

Christie, P.J., Alfenito, M.R., and Walbot, V., Impact of low-temperature stress on general phenylpropanoid and anthocyanin pathways enhancement of transcript abundance and anthocyanin pigmentation in maize seedlings, Planta, 194, 541, 1994. 

Ferretti, M., Ghisi, R., Nardi, S., and Passera, C. (1991). Effect of humic substances on photosynthetic sulphate assimilation in maize seedlings. Can. J. Soil Sci. 71,239-242. 

Sessi, E., Nardi, S., and Gessa, C. (2000). Effects of low and high molecular weight humic substances from two different soils on nitrogen assimilation pathway in maize seedlings. Humic Subst. Environ. 2(1/4), 39 16. 

Hedden, P., Phinney, B.O. "Comparison of ent-kaurene and ent-isokaurene synthesis in cell-free systems from etiolated shoots of normal and dwarf-5 maize seedlings."... 

Hassett et al. (1976) reported that the elongation of soil-grown maize seedlings was depressed more by Pb and Cd in combination than by Pb alone. Webber (1980) found that Cd reduced the uptake of Zn in lettuce and there was a tendency for the reverse effect also. 

Davis, C. S., Ni, X. Z., Quisenberry, S. S. and Foster, J. E. 2000. Identification and quantification of hydroxamic acids in maize seedling root tissue and impact on western corn rootworm (Coleoptera Chrysomelidae) larval development. J. Econ. Entomol. 93, 989-992... 

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