【摘 要】
：
Dear Editor,As an essential element for pollen tube tip growth,actin cytoskeleton has been a focus for decades.Recently,both rapid-freeze and room-temperature f
【机 构】
：
Key Laboratory of Cell Proliferation and Regulation Biology of Ministry of Education, and College of
论文部分内容阅读
Dear Editor,As an essential element for pollen tube tip growth,actin cytoskeleton has been a focus for decades.Recently,both rapid-freeze and room-temperature fixation have revealed the presence of a subapical cortical F-actin (actin fringe)as a consistent feature of lily pollen tubes (Lovy-Wheeler et al.,2005).The actin fringe consists of a palisade of short longitudinally oriented actin cables that start about 1-5μm behind the extreme apex and extend basally for an additional 5-10 μm (Lovy-Wheeler et al.,2005).Meanwhile,observations in live cells using Lifeact-mEGFP,an actin probe consisting of the first 17 amino acids from the budding yeast ABP-140 fused to GFP,which does not affect the dynamics of actin,compellingly support the presence of a cortical actin fringe in lily pollen tubes (Vidali et al.,2009).
其他文献
Dear Editor,Plants produce a large range of triterpenoids that serve as chemical defenses against pathogens.For example,β-amyrin synthase (AsbAS1) performs the
Dear Editor,Pollen germination and tube growth underlie reproductive success in flowering plants.Pollen germination,whether occurring on the stigmatic surface o
Dear Editor,The plant hormone abscisic acid (ABA) goves drought stress management in plants.ABA signal transduction appears to be rather short.When under water
Dear Editor,In the past few years,the use of sequence-specific nucleases for efficient targeted mutagenesis has provided plant biologists with a powerful new ap
Dear Editor,Drought is the most devastating factor limiting the productivity and geographical distribution of rice (Oryza sativa).Several drought-tolerant varie
Dear Editor,Photorespiration reduces plant carbon assimilation by an estimated 25％-50％ of net CO2 assimilation in typical C3 plants (Roussel and Igamberdiev,2011)
Dear Editor,Most mitochondrial proteins are encoded by the nuclear genome and posttranslationally imported to mitochondria.The correct targeting is often ensure
Dear Editor,Soybean can absorb and accumulate Cd from soils in their seed.Consumption,either directly or indirectly,of seed with high levels of Cd could be a hu