Exogenous Jasmonic Acid and Cytokinin Antagonistically Regulate Rice Flag Leaf Senescence by Mediating Chlorophyll Degradation, Membrane Deterioration, and Senescence-Associated Genes Expression

Antagonistic interaction between jasmonic acid and cytokinin in xylem development

“…Growing numbers of studies have proposed that JA also interacts with cytokinin in the regulation of plant development and physiology. For example, JA prevents cytokinin-induced soybean callus growth 43 and also inhibits the effect of cytokinin on chlorophyll degradation and the plant immune system 36 , 37 . Expression of genes involved in these processes is regulated differently by JA and cytokinin.…”

Jasmonic acid deficiency leads to scattered floret opening time in cytoplasmic male sterile rice Zhenshan 97A

“…Jasmonic acid (JA) and its derivative jasmonates are important plant hormones involved in plant responses to biotic and abiotic stresses, root growth, sex determination, leaf senescence, and fruit ripening ( He et al , 2002 ; Wang et al , 2002 ; Song et al , 2013 , 2014 ; Ye et al , 2013 ; Guo et al , 2014 ; Riemann et al , 2015 ; Yuan and Zhang, 2015 ; Jia et al , 2016 ; Liu et al , 2016 ). In addition, jasmonates play important roles in regulating floret development, filament elongation, and lodicule swelling and withering ( Cheng et al , 2009 ; Cai et al , 2014 ; Xiao et al , 2014 ).…”

Molecular cloning and characterization of a chlorophyll degradation regulatory gene (ZjSGR) from Zoysia japonica

“…Exogenously applied ABA reduced chlorophyll content in detached leaves, and increased the transcript level of SGR1 in Arabidopsis (Yang et al, 2014). Methyl jasmonate (MeJA) and salicylic acid (SA) also have effects on both chlorophyll degradation and the expression of genes related to senescence (He et al, 2002;Chen et al, 2014;Liu et al, 2015).…”