Any process that modulates the frequency, rate or extent of any behavior associated with finding a host organism.

OBSOLETE. Increase in abundance, as cells age, of circular DNA molecules that originate in the chromosome but are excised and circularized, often by intramolecular homologous recombination between direct tandem repeats, and replicated independently of chromosomal replication.

Catalyzes the reaction: (1'S)-averantin + [reduced NADPH--hemoprotein reductase] + O(2) <=> (1'S,5'S)-5'-hydroxyaverantin + [oxidized NADPH--hemoprotein reductase] + H(2)O. Involved in aflatoxin biosynthesis.

OBSOLETE. (Was not defined before being made obsolete).

Catalysis of the reaction: (1'S)-averantin + NADP(+) <=> norsolorinic acid + NADPH.

OBSOLETE. (Was not defined before being made obsolete).

Catalyzes the reaction: 8-O-methylsterigmatocystin + 2 [reduced NADPH--hemoprotein reductase] + 2 O(2) <=> aflatoxin B + 2 [oxidized NADPH--hemoprotein reductase] + H(2)O + methanol + CO(2). Produces both aflatoxin B(1) and aflatoxin B(2).

Catalyzes the reaction: versicolorin B + NADPH + O(2) <=> versicolorin A + NADP(+) + 2 H(2)O. Uses heme-thiolate as a co-factor. Involved in the synthesis of aflatoxins in the fungus Aspergillus parasiticus.

The process of gaseous exchange between an organism and its environment. In plants, microorganisms, and many small animals, air or water makes direct contact with the organism's cells or tissue fluids, and the processes of diffusion supply the organism with dioxygen (O2) and remove carbon dioxide (CO2). In larger animals the efficiency of gaseous exchange is improved by specialized respiratory organs, such as lungs and gills, which are ventilated by breathing mechanisms.

Catalyzes the reactions: versiconal hemiacetal acetate + H(2)O <=> versiconal + acetate, as well as versiconol acetate + H(2)O <=> versiconol + acetate.

Catalyzes the reaction: (1'S,5'S)-hydroxyaverantin + NAD(+) <=> 5'-oxoaverantin + NADH.

OBSOLETE. The directed movement of nutrients out of a cell or organelle.

Enables the transfer of silicon from the inside of the cell to the outside of the cell across a membrane.

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 retinoic acid stimulus.

The establishment, maintenance and elaboration of the rostro-caudal axis of a somite, prior to the morphological formation of a somite boundary.