Kintia P K
Institute of Genetics, Academy of Science, Chisinau, Moldovia.
Adv Exp Med Biol. 1996;404:309-34. doi: 10.1007/978-1-4899-1367-8_27.
The main point is that these glycosides which act as bioregulators differ fundamentally from produces currently used in agriculture: all of them are natural products causing neither environmental pollution nor any damage to useful organisms. Their rates of application are milligrams per hectare instead of kilograms and tons of chemicals traditionally used in agriculture. Also, the glycoside bioregulators are very inexpensive products, being recovered from wastes of canning and pharmaceutical industries. Their application allows the pesticide pressure to be considerable lowered. Steroid glycoside bioregulators can be used as supplements to nutrient media for in vitro culture. The morphogenesis stimulation by glycosides is conditioned by their interaction with phytohormones and depends on the basic medium content. The regulatory effect of glycosides directs the morphogenesis to the increase of shoot formation in the latter stages of growth or to the further activation of callus formation. The stimulation of morphogenesis in vitro under the influence or glycosides and phytohormones of interaction can be explained by using two mechanisms; one involves connection with the permeability of cell membranes, and the other one is connected with the regulation of reactions during the subsequent morphogenetic stages.
主要观点是,这些作为生物调节剂的糖苷与目前农业中使用的产品有根本区别:它们都是天然产物,既不会造成环境污染,也不会对有益生物造成任何损害。它们的施用量是每公顷几毫克,而不是农业中传统使用的数千克和数吨化学品。此外,糖苷生物调节剂是非常廉价的产品,可从罐头和制药行业的废料中回收。它们的应用可大幅降低农药压力。甾体糖苷生物调节剂可用作体外培养营养培养基的补充剂。糖苷对形态发生的刺激取决于它们与植物激素的相互作用,并取决于基础培养基的成分。糖苷的调节作用在生长后期将形态发生导向芽形成的增加,或导向愈伤组织形成的进一步激活。在糖苷和植物激素相互作用的影响下,体外形态发生的刺激可以用两种机制来解释;一种涉及与细胞膜通透性的联系,另一种与随后形态发生阶段反应的调节有关。