Phospholipid signaling during stramenopile development

Ca2+ influx and phosphoinositide signalling are essential for the establishment and maintenance of cell polarity in monospores from the red alga Porphyra yezoensis

“…6 ). Similar functional diversity between PLC and PLD in polarity formation has recently been found in zygotes of a brown alga Silvetia compressa , in which inhibition of PLC signalling by R59022 disrupted polarization and the subsequent polar growth, including germination and cell division, with the formation of microtubule arrays, whereas inhibition of PLD with 1-butanol only affected cell division during polar growth ( Peters et al , 2008 ).…”

The diversity of algal phospholipase D homologs revealed by biocomputational analysis

“…In Silvettia compressa , a fucoid brown alga, the PLD pathway seems to be important for the formation of microtubule arrays during zygote cell division and cytokinesis (Peters et al. , ). In both cases, PLD activity was not ascribed to a particular polypeptide or encoding gene.…”

“…In Chlamydomonas moewusii, a chlorophycean alga related to higher plants, both hyperosmotic stress (Arisz and Munnik 2011) and membrane depolarization (Meijer et al 2002) proved to stimulate PA formation via the PLD pathway, with PE as the preferred substrate (Munnik et al 1995, Arisz et al 2003. In Silvettia compressa, a fucoid brown alga, the PLD pathway seems to be important for the formation of microtubule arrays during zygote cell division and cytokinesis (Peters et al 2007(Peters et al , 2008. In both cases, PLD activity was not ascribed to a particular polypeptide or encoding gene.…”

Photosynthesis-dependent Ca2+influx and functional diversity between phospholipases in the formation of cell polarity in migrating cells of red algae

“…19,20 We also found the critical involvement of PLC in the establishment of cell polarity, based on complete inhibition of monospore migration and asymmetrical distribution of F-actin by treatment with a PLC inhibitor, U73122. In contrast, the inhibition of PLD by 1-butanol prevents migration but not asymmetrical distribution of F-actin, although further incubation resulted in the loss of the F-actin asymmetry.…”

“…Such a differential involvement of these two phospholipases has also been observed in PtdIns(4,5)P 2 -dependent activation of the tobacco ourtward-rectifying K channel and the development of the brown alga Silvetia compressa. 20,22 Thus, the interrelationship between PLC and PLD in physiological regulations appears to be conserved in eukaryotic cells. In the future, elucidation of the relationship between photosynthesis-dependent Ca 2+ influx and functional diversity among phospholipases and PI3K must be addressed to understand how monospores migrate through a photosynthesis-and phosphoinositide signaling-dependent manner.…”