... for arbuscular mycorrhizal (AM) symbiosis. The moss Physcomitrella patens has a close homolog ( VPY-like , VPYL ), although it does not form AM. Here, we explore the phylogeny of VPY and VPYL in land plants, and study the expression and developmental function of VPYL in P . patens . We show that VPYL...

... of fluorescent proteins and dyes and allows the structural analysis of gene expression patterns in multiple plant tissues. Clearing Whole plant Deep imaging Confocal microscopy Two-photon microscopy Arabidopsis thaliana Physcomitrella patens To understand how cell patterning changes...

... reported. The moss Physcomitrella patens forms a hypha-like body (protonema) and a shoot-like body (gametophore) from a protonema apical cell and a gametophore apical cell, respectively. These apical cells have stem cell characteristics and are formed as side branches of differentiated protonema cells...

... candidate genes in auxin-insensitive mutants of Physcomitrella patens and identified mutations in highly conserved regions of the moss ortholog of tomato DGT . As P. patens and tomato diverged from a common ancestor more than 500 million years ago, this result suggests a conserved and central role for DGT...

...Michael J. Prigge; Magdalena Bezanilla The moss Physcomitrella patens has recently emerged as a powerful genetically tractable model plant system. As a member of the bryophytes, P. patens provides a unique opportunity to study the evolution of a myriad of plant traits, such as polarized cell growth...

.... It is one of the few derived traits specific to embryophytes, in which it is involved in the spatial control of cell division. Here we show that loss of function of Physcomitrella patens PpTON1 strongly affects development of the moss gametophore, phenocopying the developmental syndrome observed...

... also stimulates developmental transitions and growth in non-vascular plants, the effects of manipulating endogenous auxin levels have thus far not been reported. Here, we have altered the levels and sites of auxin production and accumulation in the moss Physcomitrella patens by changing the expression...

... the reproductive process. The moss Physcomitrella patens is an ideal organism in which to study epigenetic processes during the gametophyte stage,as it possesses a dominant photosynthetic gametophytic haploid phase and efficient homologous recombination, allowing targeted gene replacement. We show that P. patens...

... that initiate this cascade of events in land plants have not been identified. We have identified two FLO / LFY genes, PpLFY1 and PpLFY2 , that regulate the first cell division after formation of the zygote in the moss Physcomitrella patens . The deduced amino acid sequences of the two PpLFY genes are 94.8...

..., Physcomitrella patens , which is the only land plant in which high-frequency gene targeting is possible. We found that rhizoid development can be split into two processes: determination and differentiation. Two types of rhizoids with distinct developmental patterns (basal and mid-stem rhizoids) were recognized...