Helical growth in plant organs: mechanisms and significance

Research output: Contribution to journalReview ArticleResearchpeer-review

56 Citations (Scopus)

Abstract

Many plants show some form of helical growth, such as the circular searching movements of growing stems and other organs (circumnutation), tendril coiling, leaf and bud reversal (resupination), petal arrangement (contortion) and leaf blade twisting. Recent genetic findings have revealed that such helical growth may be associated with helical arrays of cortical microtubules and of overlying cellulose microfibrils. An alternative mechanism of coiling that is based on differential contraction within a bilayer has also recently been identified and underlies at least some of these growth patterns. Here, I provide an overview of the genes and cellular processes that underlie helical patterning. I also discuss the diversity of helical growth patterns in plants, highlighting their potential adaptive significance and comparing them with helical growth patterns in animals.
Original languageEnglish
Pages (from-to)3272-3282
Number of pages11
JournalDevelopment
Volume143
Issue number18
DOIs
Publication statusPublished - 15 Sept 2016

Keywords

  • Cellulose microfibrils
  • Circumnutation
  • G-fibres
  • Handedness
  • Microtubules
  • Spiral
  • Tendrils

Cite this