Induction-Reversion Responses or, Low Fluence (LF) Responses

Examples include:

Light-sensitive seed germination;

Many seeds require light for germination (like lettuce), whereas others are inhibited by light (wild oats, Phacelia, Royal Paulownia). Phytochrome presumably stimulates GA synthesis/release which in turn, stimulates the mobilization of stored reserves

TLS Online TPP Program

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#Unit 2. Cellular Organization

Most H2A variants contain alternative C-termini, except H2ABbd, which contains a distinct N terminus.

TLS Online TPP Program

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#Unit 2. Cellular Organization

SpH2B has a long N-terminus and functions in Chromatin packaging

TLS Online TPP Program

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#Unit 2. Cellular Organization

In yeast, centromeric nucleosomes consist of Cse4, H4, and a nonhistone protein Scm3, in place of H2A-H2B dimers.

TLS Online TPP Program

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#Unit 2. Cellular Organization

In Drosophila, the centromeric chromatin appears to consist of “hemisomes” containing one copy each of CenH3, H4, H2A, and H2B.

TLS Online TPP Program

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#Unit 2. Cellular Organization

Histone H3.1 is replicative histone.

TLS Online TPP Program

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#Unit 2. Cellular Organization

H3.3 is expressed throughout the cell cycle, in contrast to most histones that are expressed during S phase during replication.