The Sainsbury Laboratory, Cambridge University, Cambridge, UK.
Curr Biol. 2017 Aug 7;27(15):R758-R760. doi: 10.1016/j.cub.2017.06.049.
In plants, one of the most understated developmental phenomena is that of straightness - a root will grow down, a petal will grow flat. A new mutant in Arabidopsis thaliana that displays twisting in petals and roots, at the organ and cell level, has been investigated. Strikingly, the twisting is always left-handed and is not due to underlying cytoskeletal skewing, as is the case in other known, phenotypically similar, mutants.
在植物中，最不被重视的发育现象之一是直向性——根会向下生长，花瓣会平展生长。拟南芥中一种表现出花瓣和根部扭曲的新突变体，在器官和细胞水平上进行了研究。引人注目的是，这种扭曲总是左旋的，不像其他已知的表型相似的突变体那样是由于细胞骨架倾斜引起的。
