Melatonin in Plants-Scientific and Practical Aspects
A widespread occurrence of melatonin (Mel) in plant kingdom has been recently reported. Mel-till now known as an animal hormon and neurotransmiter-seems to be a highly conserved molecule occurring in evolutionary distant organisms. Its role in plants seems to be similar in some aspects to that in animals. Although Mel function in plants is not well known yet a hypothesis can be put forward that it probably acts as aonight signal, coordinating responses to diurnal and photoperiodic environmental cues. It has also been suggested that Mel is an independent plant growth regulator, probably its action is analogous to indole-3-acetic acid (IAA) and it may mediate the activities of other plant growth regulators. Due to its antioxidant properties Mel may also stabilise cell redox status and protect tissues against reactive oxygen species (ROS) and other harmful environmental influence. Some researchers speculate that Mel could also be used to improve the phytoremediation efficiency of plants against different pollutants.We have suggested that exogenous Mel applied into the seed could be a good biostimulator improving seed germination and seedling growth in abiotic stress conditions. Since Mel is safe to animals and humans as well as inexpensive, this technique could be a good, feasible and cost-effective tool for positive seed quality modification and may have economically important meaning for ecological agriculture.
abiotic stress biostimulators melatonin priming
POSMYK Malgorzata M JANAS Krystyna M.
Department of Ecophysiology and Plant Development,University of Lodz,ul. Banacha 12/16,90-237 Lodz,Poland
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
370-376
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）