Handbook of Plant and Crop Physiology

would call for development of comprehensive protocols for medicinal plant production to ensure quality and reproducibility in th ...

AS Attele, JA WU, CS Yuan. Ginseng pharmacology—multiple constituents and multiple actions. Biochem Pharmacol 58:1685–1693, 199 ...

E Nowacki, M Jurzysta, P Gorski, D Nowacka, GR Waller. Effect of nitrogen nutrition on alkaloid metabolism in plants. Biochem P ...

24 Plant Growth Hormones: Growth Promotors and Inhibitors Syed Shamshad Mehdi Naqvi Nuclear Institute of Agriculture, Tando Jam, ...

There is, however, considerable evidence that gene expression is controlled by these hormones, but how it is done biochemically ...

A. Chemical Nature In 1882, Nencki and Sieber discovered that indole-3-acetic acid was a constituent of human urine, which in 19 ...

lective herbicide. However, the trend in recent years is to use natural plant hormones to regulate crop growth for greater produ ...

The other characteristics of auxin transport are that it is metabolically dependent and moves basipo- larly with a velocity gene ...

Bioassay Only a bioassay can detect the physiological activity of a substance at hormonal concentrations, and thus development ...

GRAVITROPISM Frank [47] was perhaps the first to establish that curvatures due to gravitational stimulus were directly connected ...

vided further support by showing that a higher auxin/cytokinin ratio induces root formation and that changing it converts shoot ...

Our knowledge regarding the biosynthesis of GA in plants and crops stems from feeding^14 C-labeled acetic acid and mevalonate to ...

been used to determine gibberellin activity in plant extracts. These basic responses have generally been used in various modific ...

Mobilization of Nutrients Endosperm is the nutrient storage organ of the seed for the developing embryo. Soon after the axis b ...

The major group of cytokinins are N^6 -isoprenoid adenine analogues and can be divided into three groups. The first subgroup con ...

adenosine ribohydrolase (adenosine nucleosidase) [72]. The ribosides are considered to be the transloca- tion form, while riboti ...

Organ Development The totipotency of plant cells was demonstrated in a classical paper by Skoog and Miller [85] showing that a ...

laying senescence. The cytokinin contents of rooted leaf blades rise substantially and cytokinins can par- tially replace these ...

including free ethylene glycol and its glucose conjugate, plus oxalate and a number of unidentified prod- ucts [98]. However, me ...

Its production is regulated by a number of developmental and environmental factors. Ethylene pro- duction is induced at germinat ...