@article{fdi:010048299, title = {{A} novel patatin-like protein from cotton plant, {G}h{P}at1, is co-expressed with {G}h{L}ox1 during {X}anthomonas campestris-mediated hypersensitive cell death}, author = {{C}acas, {J}ean-{L}uc and {M}armey, {P}hilippe and {M}ontillet, {J}. {L}. and {S}ayegh-{A}lhamdia, {M}ajd and {J}alloul, {A}. and {R}ojas-{M}endoza, {A}. and {C}l{\'e}rivet, {A}lain and {N}icole, {M}ichel}, editor = {}, language = {{ENG}}, abstract = {{I}n cotton plant, {X}anthomonas-induced hypersensitive response ({HR}) is accompanied by a lipid peroxidation process involving a 9-lipoxygenase ({LOX}), {G}h{L}ox1. {I}nitiation of this oxidative metabolism implies the release of the {LOX} substrates, or polyunsaturated fatty acids. {S}ince patatin-like proteins ({PLP}s) are likely candidates for mediating the latter step, we searched for genes encoding such enzymes, identified and cloned one of them that we named {G}h{P}at1. {B}iochemical and molecular studies showed that {G}h{P}at1 expression was up-regulated during the incompatible interaction, prior to the onset of the corresponding galactolipase activity and cell death symptoms in tissues. {P}rotein sequence analysis and modelling also revealed that {G}h{P}at1 catalytic amino acids and fold were conserved across plant {PLP}s. {B}ased on these results and our previous work ({J}alloul et al. in {P}lant {J} 32: 1-12, 2002), a role for {G}h{P}at1, in synergy with {G}h{L}ox1, during {HR}-specific lipid peroxidation is discussed.}, keywords = {{P}atatin-like protein ; {G}alactolipase ; {L}ipoxygenase ; {L}ipid peroxidation ; {H}ypersensitive response ; {P}rogrammed cell death}, booktitle = {}, journal = {{P}lant {C}ell {R}eports}, volume = {28}, numero = {1}, pages = {155--164}, ISSN = {0721-7714}, year = {2009}, DOI = {10.1007/s00299-008-0622-x}, URL = {https://www.documentation.ird.fr/hor/fdi:010048299}, }