Catalysis of the reaction: benzo(a)pyrene-trans-11,12-dihydrodiol = 11,12-dihydroxybenzo(a)pyrene + 2 H+ + 2 e-.

The series of molecular signals mediated by ethylene (ethene) involved in jasmonic acid/ethylene dependent systemic resistance.

OBSOLETE. Modulates the activity of the proteasome complex. The proteasome complex performs regulated ubiquitin-dependent cytosolic and nuclear proteolysis.

OBSOLETE. A mechanism that functions to prevent self-fertilization in flowering plants that is determined by the diploid genotype of the parent plant. In sporophytic incompatibility the pollen does not germinate, consequently fertilization does not take place.

Any process that increases the rate, frequency or extent of pathway-restricted SMAD protein phosphorylation. Pathway-restricted SMAD proteins and common-partner SMAD proteins are involved in the transforming growth factor beta receptor signaling pathways.

Any process that activates or increases the frequency, rate or extent of addition of phosphate groups to amino acids within a protein.

Any process that increases the rate, frequency, or extent of the series of molecular signals generated as a consequence of a transmembrane receptor serine/threonine kinase binding to its physiological ligand.

Any process that modulates the rate, frequency or extent of pathway-restricted SMAD protein phosphorylation. Pathway-restricted SMAD proteins and common-partner SMAD proteins are involved in the transforming growth factor beta receptor signaling pathways.

Any process that increases the rate of phospholipase C activity.

Any process that modulates the frequency, rate or extent of phospholipase C activity.

Any process that increases the frequency, rate or extent of phospholipase activity, the hydrolysis of a phospholipid.

The interaction between a pollen grain and pistil.

Any process that mediates interactions between a cell and its surroundings. Encompasses interactions such as signaling or attachment between one cell and another cell, between a cell and an extracellular matrix, or between a cell and any other aspect of its environment.

Catalysis of the reaction: (R)-1,2,3,4-tetrahydronaphthol = 1,2,3,4-tetrahydronaphthalone + 2 H+ + 2 e-.

The process in which pollen deposited on the stigma adheres to cells of the stigma.

Catalysis of the reaction: geranial + NAD+ + OH- = geranylate + NADH + H+.

Catalysis of an oxidation-reduction (redox) reaction in which an aldehyde or ketone (oxo) group acts as a hydrogen or electron donor and reduces NAD or NADP.

A conserved series of molecular signals found in prokaryotes and eukaryotes; involves autophosphorylation of a histidine kinase and the transfer of the phosphate group to an aspartate that then acts as a phospho-donor to response regulator proteins.