TABLE 4.

Commonly up-regulated (at least at one time point) candidate genes following treatment with the three seaweed extracts.

Gene	Reported function
NPR1	SA mediated SAR signaling pathway (Eshraghi et al., 2011).
PR1	SAR marker gene (Eshraghi et al., 2011).
PR5	SAR marker gene (Eshraghi et al., 2011).
PIN2	PIN formed protein, Auxin transporter, plays a critical role in auxin gradient−mediated developmental processes, including lateral root formation and gravitropic growth (Sun et al., 2011).
GR1	Glutathione reductase 1, plays a crucial role in responses to intracellular hydrogen peroxide and in ensuring appropriate gene expression through both salicylic acid and jasmonic acid signaling pathways (Mhamdi et al., 2010).
UGT73B4	UDP-glycosyltransferase 73B4, UGT plays an essential role in the biosynthesis of secondary metabolites in plants (Guo et al., 2016).
CRK15	Cysteine-rich receptor like protein kinase 15, involved in pathogen induced plant cell death in bak1/serk4 mutant through regulation of ER quality control (ERQC) (de Oliveira et al., 2016).
MLO-8	Mildew resistance locus O-8, May be involved in modulation of pathogen defense and leaf cell death. Activity seems to be regulated by Ca2+-dependent calmodulin binding and seems not to require heterotrimeric G proteins (Devoto et al., 2003).