Plant Reproduction: AMOR Enables Males to Respond to Female Signals.
The pollen tube of flowering plants undertakes a long journey to transport two sperm cells for double fertilization. New work on pollen tube guidance has identified an arabinogalactan-derived ovular factor that primes tubes to respond to female gametophyte-secreted attraction signals.
Cell Biology and Plant Biochemistry, Biochemie-Zentrum Regensburg, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany. Electronic address: thomas.dresselhaus@ur.de.
Thomas
T
Dresselhaus
Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
Silvia
S
Coimbra
D005260:Female; D005306:Fertilization; D019684:Magnoliopsida; D056771:Ovule; D053205:Pollen Tube; D054817:Pollination; D012098:Reproduction