通常将植物生长调节剂添加到体外培养基中以促进细胞的生长和分化。组织,和器官。然而,而关于使用更常见的生长素的文献,细胞分裂素,赤霉素,脱落酸,乙烯是巨大的,其他也显示出生长调节活性的化合物尚未被频繁研究。这些物质还能够通过调节植物细胞和组织的生长来调节其体外反应,分化,和再生能力,而且还通过增强它们对生物和非生物胁迫剂的反应并改善感兴趣的次级代谢产物的产生。本章将讨论几种这种不太频繁添加的植物生长调节剂的体外作用,包括油菜素类固醇(BRS),stragolactones(SL),植物硫因子(PSKs),茉莉酸甲酯,水杨酸(SA),硝普钠(SNP),亚硫酸氢盐,各种植物生长延缓剂和抑制剂(例如,ancymidol,乌立康唑,氟普利醇,多效唑),和多胺。
Plant growth regulators are routinely added to in vitro culture media to foster the growth and differentiation of the cells, tissues, and organs. However, while the literature on usage of the more common auxins, cytokinins, gibberellins, abscisic acid, and ethylene is vast, other compounds that also have shown a growth-regulating activity have not been studied as frequently. Such substances are also capable of modulating the responses of plant cells and tissues in vitro by regulating their growth, differentiation, and regeneration competence, but also by enhancing their responses toward biotic and abiotic stress agents and improving the production of secondary metabolites of interest. This chapter will discuss the in vitro effects of several of such less frequently added plant growth regulators, including brassinosteroids (BRS),
strigolactones (SLs), phytosulfokines (PSKs), methyl jasmonate, salicylic acid (SA), sodium nitroprusside (SNP), hydrogen sulfite, various plant growth retardants and inhibitors (e.g., ancymidol, uniconazole, flurprimidol, paclobutrazol), and polyamines.