Document Detail

Floral development in Scutellaria pinnatifida (Lamiaceae): the ontogenetic basis for sepal reduction.
MedLine Citation:
PMID:  24853689     Owner:  NLM     Status:  Publisher    
The Scutellaria is a Labiatae genus (subfamily Scutellarioideae) with a highly specialised floral structure. The genus is characterised by a peculiar two-lobed calyx with a projecting appendage, named the scutellum. Here, we present a detailed analysis of floral development, using epi-illumination light microscopy, to clarify open questions about its floral organisation. Floral whorls appeared in an acropetal sequence, with a marked temporal overlap of petal and stamen appearance. Organ appearance in each whorl proceeded unidirectionally from the abaxial to the adaxial side. Significant developmental features included the formation of the scutellum, reduction of sepal lobes and formation of a three-lobed nectary disc. Our study revealed that both loss of organ initiation and fusion of primordia are responsible for the reduction in sepal members in Scutellaria. The nectary structure was markedly different from most other studied Lamiaceae.
S Naghiloo; G R Gohari; S Nikzat Siahkolaee; M R Dadpour
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-5-22
Journal Detail:
Title:  Plant biology (Stuttgart, Germany)     Volume:  -     ISSN:  1438-8677     ISO Abbreviation:  Plant Biol (Stuttg)     Publication Date:  2014 May 
Date Detail:
Created Date:  2014-5-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101148926     Medline TA:  Plant Biol (Stuttg)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2014 German Botanical Society and The Royal Botanical Society of the Netherlands.
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