Details the various physiological responses in plants caused by microbially derived
phytohormones--examining the microbial synthesis of the five primary classes of plant …

The decade since the publication of the third edition of this volume has been an era of great
progress in biology in general and the plant sciences in particular. This is especially true …

It is widely believed that the root cap participates in geotropism by acting both as a sensor of
the direction of gravity and as a source of at least one regulator of root growth, which may be …

The response of plant roots to gravity has fascinated many botanists since the early days of
plant physiology and much research has been devoted to the elucidation of the sequence of …

Informations on root flavonoids have been extensively reviewed and their functional diversity
critically appraised. Root flavonoids play significant roles in protecting the plants against …

Using an auxanometer and time-lapse cinematography we have studied the timing of
abscisic acid (ABA) effects on elongation, gravitropic curvature, and hydrogen-ion efflux in …

The effect of abscisic acid (ABA) on the growth of maize roots maintained in the dark is
investigated in relation to the root varieties and the root age, the mode of application, the …

Extraction and analytical methods have been refined and new ones devised to allow precise
determinations by GC-EC of the levels of abscisic acid (ABA) and indol-3ylacetic acid (IAA) …

A variety of hormones and inorganic regulators are involved in geotropism. The evidence for
certain of these is extensive and definitive; for others, it is new and incomplete. Because this …

For phototropic curvature of a green sunflower seedling, only the hypocotyl has to be
illuminated; the tip and cotyledons are not involved in stimulus perception. The etiolated …