ABA (C15) biosynthesis takes place in chloroplasts and cytosol from C40 precursor

ABA closes stomata in response to water stress

ABA promotes root growth and inhibits shoot growth at low water potentials

TLS Online TPP Program

#Id: 7914

#Unit 2. Cellular Organization

Matrix-targeting sequences

Located at the N-terminus

Usually 20–50 amino acids in length

Rich in hydrophobic amino acids, positively charged basic amino acids (arginine & lysine), and hydroxylated ones (serine and threonine)

Amphipathicity of matrix-targeting sequences is critical to their function

TLS Online TPP Program

#Id: 4584

#Unit 6. System Physiology – Plant

The initial observation was that the germination of lettuce seeds is stimulated by red light and inhibited by farred light.

TLS Online TPP Program

#Id: 4770

#Unit 5. Developmental Biology

The POP-1 encodes the TCF protein that binds β-catenin & blocks the pathway to the E fate by inhibiting endodermal transcription factors (END-1) in the prospective MS cell

TLS Online TPP Program

#Id: 8150

#Unit 2. Cellular Organization

Sar1 is the only GTPase switch protein activated at the ER membrane

TLS Online TPP Program

#Id: 1831

#Unit 11. Evolution and Behavior

Silurian- Origin of jawed fishes and arthropods