Plant Signaling: Molecular Mechanisms

Sat, 28 Mar 2026 00:00:00 +0000

This file covers the biochemistry and molecular biology of plant signaling systems. For the ecological and relational framing, see plant-signaling.md.

¶1. Phytohormone Signaling

Plants use at least nine major classes of hormone. Each is synthesized through specific enzymatic pathways, perceived by identified receptor proteins, and transduced through defined signaling cascades.

¶1.1 Auxin (Indole-3-Acetic Acid, IAA)

Function. Cell elongation, apical dominance, tropisms (photo- and gravitropism), vascular differentiation, lateral root initiation, embryo patterning.

DNA

Fri, 06 Mar 2026 00:00:00 +0000

Deoxyribonucleic acid (DNA) is the molecule that stores genetic information in living organisms. It consists of two complementary strands of nucleotides wound into a double helix, a structure first described by James Watson and Francis Crick in 1953, building on X-ray crystallography by Rosalind Franklin and Maurice Wilkins. Each nucleotide contains one of four bases — adenine (A), thymine (T), guanine (G), cytosine (C) — and the sequence of these bases encodes the instructions for building proteins.

Molecular-Biology on emsenn.net

Plant Signaling: Molecular Mechanisms

¶1. Phytohormone Signaling

¶1.1 Auxin (Indole-3-Acetic Acid, IAA)

DNA