... KNOTTED1 ( KN1 ) gene acts non cell-autonomously in the maize leaf, and KN1 was the first plant protein shown to traffic cell-to-cell, presumably through plasmodesmata. We have compared the intercellular trafficking of green fluorescent protein (GFP)fusions of KN1 and Arabidopsis KN1-related homeobox...

... using knotted1 as a marker for meristematic tissue show that barren inflorescence2 mutants make fewer branches owing to a defect in branch meristem initiation. The construction of the double mutant between barren inflorescence2 and tasselsheath reveals that the function of barren inflorescence2...

...Erik Vollbrecht; Leonore Reiser; Sarah Hake ABSTRACT The knotted1 ( kn1 ) gene of maize is expressed in meristems and is absent from leaves, including the site of leaf initiation within the meristem. Recessive mutations of kn1 have been described that limit the capacity to make branches and result...

...Rosalind E. Williams-Carrier; Yung S. Lie; Sarah Hake; Peggy G. Lemaux ABSTRACT The homeobox gene, knotted1 , ( kn1 ) is expressed in shoot meristems and is required for maintaining indeterminacy and preventing cellular differentiation. Awns, extensions of the bract-like lemma found in all grass...

...Randall A. Kerstetter; Debbie Laudencia-Chingcuanco; Laurie G. Smith; Sarah Hake ABSTRACT The product of the maize homeobox gene, knotted1 ( kn1 ), localizes to the nuclei of cells in shoot meristems, but is absent from portions of the meristem where leaf primordia or floral organs initiate...

...David Jackson; Bruce Veit; Sarah Hake ABSTRACT In this paper we describe the expression patterns of a family of homeobox genes in maize and their relationship to organogenic domains in the vegetative shoot apical meristem. These genes are related by sequence to KNOTTED1 , a gene characterized...