---
res:
  bibo_abstract:
  - The four microsporangia of the flowering plant anther develop from archesporial
    cells in the L2 of the primordium. Within each microsporangium, developing microsporocytes
    are surrounded by concentric monolayers of tapetal, middle layer and endothecial
    cells. How this intricate array of tissues, each containing relatively few cells,
    is established in an organ possessing no formal meristems is poorly understood.
    We describe here the pivotal role of the LRR receptor kinase EXCESS MICROSPOROCYTES
    1 (EMS1) in forming the monolayer of tapetal nurse cells in Arabidopsis. Unusually
    for plants, tapetal cells are specified very early in development, and are subsequently
    stimulated to proliferate by a receptor-like kinase (RLK) complex that includes
    EMS1. Mutations in members of this EMS1 signalling complex and its putative ligand
    result in male-sterile plants in which tapetal initials fail to proliferate. Surprisingly,
    these cells continue to develop, isolated at the locular periphery. Mutant and
    wild-type microsporangia expand at similar rates and the ‘tapetal’ space at the
    periphery of mutant locules becomes occupied by microsporocytes. However, induction
    of late expression of EMS1 in the few tapetal initials in ems1 plants results
    in their proliferation to generate a functional tapetum, and this proliferation
    suppresses microsporocyte number. Our experiments also show that integrity of
    the tapetal monolayer is crucial for the maintenance of the polarity of divisions
    within it. This unexpected autonomy of the tapetal ‘lineage’ is discussed in the
    context of tissue development in complex plant organs, where constancy in size,
    shape and cell number is crucial.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Xiaoqi
      foaf_name: Feng, Xiaoqi
      foaf_surname: Feng
      foaf_workInfoHomepage: http://www.librecat.org/personId=e0164712-22ee-11ed-b12a-d80fcdf35958
    orcid: 0000-0002-4008-1234
  - foaf_Person:
      foaf_givenName: Hugh G.
      foaf_name: Dickinson, Hugh G.
      foaf_surname: Dickinson
  bibo_doi: 10.1242/dev.049320
  bibo_issue: '14'
  bibo_volume: 137
  dct_date: 2010^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/1477-9129
  - http://id.crossref.org/issn/0950-1991
  dct_language: eng
  dct_publisher: The Company of Biologists@
  dct_subject:
  - Developmental Biology
  - Molecular Biology
  - Anther Tapetum
  - Arabidopsis
  - Cell Fate Establishment
  - EMS1
  - Reproductive Cell Lineage
  dct_title: Tapetal cell fate, lineage and proliferation in the Arabidopsis anther@
  fabio_hasPubmedId: '20570940'
...