Inhibition of root growth

Godbold DL, Jentschke G. Aluminium accumulation in root cell walls coincides with inhibition of root growth hut not with inhibition of magnesium uptake in Norway spruce. Physiol Plant 1998 102 553-560. 

ISO 11269-1. Soil quality - Determination of the Effects of Pollutants on Soil Flora - Part 1 Method for Measurement of Inhibition of Root Growth International Organization for Standardization Geneve, 1993 9 pp. 

Table II. Inhibition of root growth of Panicum miliaceuiii (PC50) under the influence of 31...

Figure 1. Inhibition of root growth of Avena sativa by the aqueous extract from oat husks after fractionation. The aqueous extract was extracted with ether firt at pH 7 (o—o) and then at pH 1 (o-o) ( - ) the remaining water phase. Lower part doubly reciprocal plot. (Reproduced with permission from reference 1. Copyright 1982 Verlag der Zeitschrift fur Naturforschung.)...

Some chemically related compounds antagonize the action of auxins, for example, relieving the inhibition of root growth caused by 2,4-D. In contrast, 2,3,5-triiodbenzoic acid synergizes the action. 

Three metabolites, Cyl-1, Cyl-2, Cyl-3, were found in the culture filtrate of Cylindrocladium scoparium (181, 182). Cyl-1 and Cyl-2 showed inhibition of root growth, whereas Cyl-3 promoted the growth of lettuce seedlings. The structure (cyclic peptide) was eluciated only for Cyl-2 (182) as shown in Figure 10. 

STASWICK, P.E., SU, W., HOWELL, S.H., Methyl jasmonate inhibition of root growth and induction of a leaf protein are decreased in an Arabidopsis thaliana mutant, Proc. Natl. Acad. Sci. USA, 1992,89,6837-6840. 

ISO 11269-1 (1993) Determination of the effects of pollutants on soil flora. Part 1 Method for the measurement of inhibition of root growth. ISO, Geneva. 

The first visible symptoms of propyzamide treatment are chlorosis and inhibition of root growth. Later abnormal stem growth can be observed, and the plants wither in a few weeks. 

Heavy metal ions such as Cu, Zn, Mn, Fe ", NP", and Co are essential micronu-tritients for plant metabolism. When these ions are not available to the roots, plants develop specific deficiency symptoms, though when present in excess, these - as well as nonessential metals such as Cd ", Hg " and Pb " " - can become extremely toxic. At high concentrations, all these metals may cause symptoms such as chlorosis and necrosis, stunting, leaf discoloration and inhibition of root growth (Marschner... 

The final example of our chemical genetic approach to dissect herbicide action involves auxin biology. A subset of our bioactive compound library that exhibited auxinic herbicidal symptoms was tested for inhibition of root growth of Arabidopsis seedlings. The most potent of these compounds was a novel picolinate auxin DAS534. Previous mutational studies with 2,4-D have elucidated an auxin signal-... 

C22H28O6, Mr 388.46, square prisms, mp. 196-197 °C. G., a very bitter-tasting diterpene of the 4a,5/S- cler-odane type from the liverwort Gymnocolea inflata, shows a number of biological activities Thus anti-feedant effects on larvae of Japanese Pieris species, inhibition of root growth (10 -10 Mol) in the cress (Lepidium sativum), and promotion of germination (10 -10" Mol) of wheat seeds have been reported. Ut. J. Hattori Bot. Lab. 39,215 (1975). Zinsmeister Mues (eds.), Bryophytes, their Chemistry and Chemotaxonomy (Proc. Phytochem. Soc. Eur. 29), p. 399,404, Oxford Clarendon Press 1990. 

It was later shown that apically applied auxin was also concentrated at the nodes [2]. However, Burg and Burg felt that this general idea might apply better to other inhibitions produced by applied auxin, such as the inhibition of root growth. This reserve was due inter alia to their observation that high CO2 concentrations, which inhibit ethylene action, did not release the buds from inhibition. However,... 

Chadwick AV, Burg SP (1967) An explanation of the inhibition of root growth caused by indole-3-acetic acid. Plant Physiol 42 415-420 Chadwick AV, Burg SP (1970) Regulation of root growth by auxin-ethylene interaction. Plant Physiol 45 192-200... 

Inhibition of root growth in wheat caused by the grass herbicide haloxyfop [2-(4-[(3-chloro-5-trifluoromethyl)2-pyridinyl)oxo]phenoxy)propanoic acid) is accompanied by a relative increase in linolenate in the membrane lipids of the root tips (Banas et aL, 1993a). A number of substances which counteract the growth inhibition also counteract the increase in linolenate (Banas et aL, 1993b). In order to elucidate possible relationship between these antagonistic compounds and their effect on polyunsaturated fatty acid content, we report in this communication the effect of two of these substances, salicylic acid (SAL) and salicylhydroxamic acid (SHAM), on the production of polyunsaturated fatty acids in vivo and in vitro,... 

Gallic acid isolated from evening primrose root was reported to be phytotoxic causing ca. 85% inhibition of root growth in germinating wheat seeds at 250 ppm. A fourfold dose resulted in complete inhibition of root growth. " ... 

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