Faizan Mohammad, Faraz Ahmad, Sami Fareen, Siddiqui Husna, Yusuf Mohammad, Gruszka Damian, Hayat Shamsul
Tree Seed Center, College of Forest Resources and Environment, Nanjing Forestry University, Nanjing-210037, P.R. China.
Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202 002, India.
Open Life Sci. 2020 Apr 10;15:217-228. doi: 10.1515/biol-2020-0022. eCollection 2020.
Plant hormones play important roles in controlling how plants grow and develop. While metabolism provides the energy needed for plant survival, hormones regulate the pace of plant growth. Strigolactones (SLs) were recently defined as new phytohormones that regulate plant metabolism and, in turn, plant growth and development. This group of phytohormones is derived from carotenoids and has been implicated in a wide range of physiological functions including regulation of plant architecture (inhibition of bud outgrowth and shoot branching), photomorphogenesis, seed germination, nodulation, and physiological reactions to abiotic factors. SLs also induce hyphal branching in germinating spores of arbuscular mycorrhizal fungi (AMF), a process that is important for initiating the connection between host plant roots and AMF. This review outlines the physiological roles of SLs and discusses the significance of interactions between SLs and other phytohormones to plant metabolic responses.
植物激素在控制植物的生长和发育过程中发挥着重要作用。新陈代谢为植物的生存提供所需能量，而激素则调节植物的生长速度。独脚金内酯（SLs）最近被定义为一类新的植物激素，它调节植物新陈代谢，进而影响植物的生长和发育。这类植物激素源自类胡萝卜素，并参与了广泛的生理功能，包括植物形态建成的调控（抑制芽的生长和枝条分枝）、光形态建成、种子萌发、结瘤以及对非生物因子的生理反应。SLs还能诱导丛枝菌根真菌（AMF）萌发孢子的菌丝分枝，这一过程对于启动宿主植物根系与AMF之间的连接至关重要。本文综述了SLs的生理作用，并讨论了SLs与其他植物激素之间的相互作用对植物代谢反应的重要性。
