Search on: POLLEN TUBE 
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Descriptor English:   Pollen Tube 
Descriptor Spanish:   Tubo Polínico 
Descriptor Portuguese:   Tubo Polínico 
Tree Number:   B06.413.024.249.500.500.500
Definition English:   A growth from a pollen grain down into the flower style which allows two sperm to pass, one to the ovum within the ovule, and the other to the central cell of the ovule to produce endosperm of SEEDS. 
History Note English:   2007; use FLOWERS 2002-2006 
Allowable Qualifiers English:  
adverse effects anatomy & histology
chemistry classification
cytology drug effects
embryology enzymology
growth & development genetics
immunology metabolism
microbiology physiology
poisoning parasitology
radiation effects toxicity
ultrastructure virology
Record Number:   52089 
Unique Identifier:   D053205 

Occurrence in VHL: 		 

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