Leaf, leaves auxin transport

Defoliation. Interest in defoliation has been low in recent years. One relatively new development is the "wiltant which is applied only shortly before harvest (51). As an outgrowth of some basic studies, several auxin transport inhibitors, TIBA, DPX-1840, Alanap (N-l-naph-thylphthalamate), and morphactins (2-chloro-9-hydroxyfluorene-9-car-boxylic acid), were shown to promote ethylene- and ethephon-mediated leaf abscission (52, 53). Subsequently, CA3 was found to be even more active in promotion of ethylene-induced abscission (54). It now appears that the CA3 counteracts the inhibitory effect of auxin on ethylene-induced leaf abscission (55) thus, CA3 might improve the performance of any defoliant that achieves part of its action by stimulating stress-induced ethylene production and lowering the natural auxin content of the dam-... 

Davenport TL, Morgan PW, Jordan WR (1977 b) Auxin transport as related to leaf abscission during water stress in cotton. Plant Physiol 59 554-557 Davenport TL, Jordan WR, Morgan PW (1979) Movement of kinetin and gibberellic acid in leaf petioles during water stress-induced abscission in cotton. Plant Physiol 63 152-155... 

Keitt GW, Baker RA (1966) Auxin activity of substituted benzoic acids and their effect on polar auxin transport. Plant Physiol 41 1561-1569 Kende H (1964) Preservation of chlorophyll in leaf sections by substances obtained from root exudate. Science 145 1066-1067... 

Lund EJ (1947) Bioelectric fields and growth. Univ Texas Press, Austin Lyon CJ (1963 a) Auxin factor in branch epinasty. Plant Physiol 38 145-152 Lyon CJ (1963 b) Auxin transport in leaf epinasty. Plant Physiol 38 567-574 Lyon CJ (1965 a) Auxin transport in geotropic curvatures of a branched plant. Plant Physiol 40 18-24... 

Rubery PH, Sheldrake AR (1974) Carrier-mediated auxin transport. Planta 118 101-121 Rubinstein B, Leopold AC (1963) Analysis of the auxin control of bean leaf abscission. Plant Physiol 38 262-267... 

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