Inhibition of rooting

Sick soil" toxicants Accumulation of toxicants from previous inhabitants evidently results in growth inhibition of roots and interfere with seedling establishment (46). 

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. 

The objective of this study was also to establish a link between an easily observable allelopathic effect (growth inhibition of roots) and a cellular-based explanation (membrane permeability changes). Several modes of action can explain these results, such as an increase in the lipid peroxidation, a disruption in the intrinsic membrane protein activities, or an alteration in plasma membrane ATPase activity. 

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. 

Indirect inhibition of root development by blocking photosynthesis. 

Inhibition of root meristem mitosis, rapid elongation of epidermis - short, pitted trachea with lesions, root hairs at root tip only, considerable vacuolation and lignification. 

One of the commercially most successful fluorine-containing herbicides is Trifluralin [12, 13]. Acting by inhibition of root and shoot growth of seedlings immediately after germination it is used as a preplanting herbicide for selective control of armual grasses and broadleaf weeds in cotton and other crops. A newer development is the structurally related Flumetralin [14], which is used to control suckers on tobacco. 

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. 

Phytotoxic symptoms caused by TCA are wilting of the leaves and inhibition of root and stem growth (Mayer, 1957). The foliage temporarily becomes dark green, then chlorosis is manifested. The weeds treated die in 3-4 weeks. Treatment with... 

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. 

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