Gene Details:

• Gene ID: AT3G19050
• Gene Symbol: POK2
• Gene Name: phragmoplast orienting kinesin 2
• Description: phragmoplast orienting kinesin 2;(source:Araport11)
• TAIR Accession:
• Genome: Araport11_genome_release
• Species: Arabidopsis thaliana

Transcripts:

• AT3G19050.1

Plant Ontology Annotations:

• PO:0000016  — lateral root primordium — portion of lateral root primordium tissue (exact), primordio de raíz lateral (Spanish, exact), 側根原基 (Japanese, exact)
• PO:0000026  — primary root tip — punta de la raíz primaria (Spanish, exact), 一次根端 (Japanese, exact)
• PO:0003011  — root vascular system — sistema vascular de la raíz (Spanish, exact), 根維管系 (Japanese, exact), root vein (related)

Germplasm Phenotype:

• SALK_013944  — No visible phenotype.
• pok1-1/pok2-1  — At seedling stage pok1/pok2 double mutants differ from wild-type by having smaller cotyledons as well as shorter, wider roots and hypocotyls. Adult plants exhibit a dwarfed stature, but all organs are present, although miniaturized. Plants are fertile but produce reduced numbers of seeds. Microscopic observation revealed highly disordered root meristem cell patterns, with most walls lacking parallel or perpendicular alignment to the longitudinal axis of the root and most cells exhibiting irregular shapes. Examination of cell wall patterns suggested that misoriented cell divisions were largely responsible for the irregular cell patterns. In pok1/pok2 double mutant embryos, misplaced cell walls were observed as early as the octant stage of embryogenesis. Throughout embryogenesis, the mispositioning of cell walls continues, eventually giving rise to slightly misshapen mature embryos with a stubby appearance, compared to wild-type. However, incomplete cell walls and wall stubs, a common feature of cytokinesis-defective mutants, were not observed in Toluidine blue-stained sections of double mutant embryos.

Function-related keywords:

• lateral root primordium ,  primary root tip ,  root vascular system

Literature:

• Mitosis-specific kinesins in Arabidopsis.   DOI:  10.1016/j.tplants.2006.02.004 ;  PMID:  16530461
• Putative Arabidopsis homologues of metazoan coiled-coil cytoskeletal proteins.   DOI:  10.1042/CBI20100719 ;  PMID:  21284606
• Putative RopGAPs impact division plane selection and interact with kinesin-12 POK1.   DOI:  10.1038/nplants.2016.120 ;  PMID:  27501519

Sequences: