Andrew Woodward

TL;DR: Nearly six decades after the structural elucidation of IAA, many aspects of auxin metabolism, transport and signalling are well established; however, more than a few fundamental questions and innumerable details remain unresolved.

TL;DR: Transcript profiling and ovule culture experiments both indicate that several phytohormones and other signalling pathways mediate cotton fibre development, and genomic data, mutant and functional analyses, and genome mapping studies promise to reveal the critical factors mediating cotton fibre cell development.

TL;DR: A review of the factors that contribute to such a potentially insecure environment, together with the identification of the vulnerabilities, is important for understanding why these vulnerabilities persist and what the solution space should look like.

TL;DR: The isolation and characterization of an Arabidopsis peroxin mutant, pex7-1, is described, which displays peroxisome-defective phenotypes including reduced PTS2 protein import, and it is demonstrated that the pex5-1 PTS1 receptor mutant, which contains a lesion in a domain conserved among PEX7-binding proteins from various organisms, is defective not in PTS1protein import, but rather in PTS2protein import.

TL;DR: Enrichment of siRNAs in ovules and fibers suggests active small RNA metabolism and chromatin modifications during fiber development, whereas general repression of miRNAAs in fibers correlates with upregulation of a dozen validated miRNA targets encoding transcription and phytohormone response factors, including the genes found to be highly expressed in cotton fibers.