In this study, we monitored changes in cell wall sulfated galactans the red seaweed Grateloupia imbricata after rapid (48 h) induction of cystocarp maturation and carpospore development by volatile hormone methyl jasmonate (MEJA). Synthesis galactans, carrageenans, which requires UDP galactose, was followed expression analysis genes encoding phosphoglucomutase (PGM), galactose-1-phosphate uridy...

Duckweeds are particularly well suited for studies needing high output because of their quick growth and reproduction. Due to starches flavonoids, the potential using duckweed as a source food, medicine or feed has been studied. Through LC-MS analysis, 195 differential metabolites, including organic acids, phenolics, other categories, were screened in Spirodela polyrhiza L. exposed 4 days NaCl....

Cytochrome P450 (CYP74) family members participate in the generation of oxylipins and play essential roles plant adaptation. However, metabolic reprogramming mediated by CYP74s under cold stress remains largely unexplored. Herein, we report how cold-triggered OsHPL1, a member CYP74 family, modulates rice metabolism. Cold significantly induced expression OsHPL1 accumulation OPDA (12-oxo-phytodie...

Root hair formation is an important model with which to study cell patterning and differentiation in higher plants. Ethylene and auxin are critical regulators of root hair development. The role of jasmonates (JAs) was examined in Arabidopsis root hair development as well as their interactions with ethylene in this process. The results have shown that both methyl jasmonate (MeJA) and jasmonic ac...

The oxylipin jasmonic acid (JA) and its metabolites, collectively known as jasmonates, are important plant signaling molecules that mediate biotic and abiotic stress responses as well as aspects of growth and development. Although it is well known that JA regulates transcription, the mechanism of this regulation has been largely unknown. Recently, this situation changed dramatically with the di...

The Arabidopsis thaliana CORONATINE INSENSITIVE1 (COI1) gene encodes an F-box protein to assemble SCF(COI1) complexes essential for response to jasmonates (JAs), which are a family of plant signaling molecules required for many essential functions, including plant defense and reproduction. To better understand the molecular basis of JA action, we screened for suppressors of coi1 and isolated a ...

Ethylene is a gaseous plant hormone that most likely became a functional hormone during the evolution of charophyte green algae, prior to land colonization. From this ancient origin, ethylene evolved into an important growth regulator that is essential for myriad plant developmental processes. In vegetative growth, ethylene appears to have a dual role, stimulating and inhibiting growth, dependi...