Any process that modulates the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.

Any process that activates or increases the frequency, rate or extent of cellular DNA-templated transcription.

The process in which a relatively unspecialized cell acquires specialized features of a haploid sperm cell within the plant gametophyte.

Any process that modulates the frequency, rate or extent of pollen tube growth.

Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.

The process whose specific outcome is the progression of the pollen grain over time, from its formation to the mature structure. The process begins with the meiosis of the microsporocyte to form four haploid microspores. The nucleus of each microspore then divides by mitosis to form a two-celled organism, the pollen grain, that contains a tube cell as well as a smaller generative cell. The pollen grain is surrounded by an elaborate cell wall. In some species, the generative cell immediately divides again to give a pair of sperm cells. In most flowering plants, however this division takes place later, in the tube that develops when a pollen grain germinates.

Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a gibberellin stimulus.

A series of molecular signals mediated by the detection of gibberellic acid.

Any process that activates or increases the frequency, rate or extent of abscisic acid (ABA) signaling.

Growth of pollen via tip extension of the intine wall.

Any process that activates or increases the frequency, rate or extent of programmed cell death, cell death resulting from activation of endogenous cellular processes.

Any process that activates or increases the frequency, rate or extent of cellular DNA-templated transcription.

Any process that modulates the frequency, rate or extent of leaf morphogenesis.

A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a protein storage vacuole, a storage vacuole that contains a lytic vacuole.

A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.

A tubular cell projection that is part of a pollen tube cell and extends from a pollen grain.

A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.