The chemistry of pollination in selected Brazilian Maxillariinae orchids: floral rewards and fragrance.
We report the chemical composition of the floral rewards and the fragrance of 10 Maxillariinae (Orchidaceae) species. The species that offer rewards (labellar secretions) are usually scentless, the rewards being collected by bees. Chemical analyses revealed that the major chemical class of compounds present in the labellar secretions are triterpenoids. The rewardless Maxillariinae flowers were usually scented, and chemical analyses of their volatiles revealed that they were composed of mono and sesquiterpenoids.
Instituto de Química, Universidade Estadual de Campinas, CP 6154, 13084-971 Campinas, São Paulo, Brazil.
Adriana
A
Flach
Règine Carole
RC
Dondon
Rodrigo B
RB
Singer
Samantha
S
Koehler
Maria Do Carmo E
Mdo C
Amaral
Anita J
AJ
Marsaioli
D000818:Animals; D001516:Bees / Q000187:drug effects* / Q000502:physiology; D044822:Biodiversity; D001938:Brazil; D005247:Feeding Behavior / Q000187:drug effects*; D035264:Flowers / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D009682:Magnetic Resonance Spectroscopy; D039821:Monoterpenes / Q000032:analysis / Q000737:chemistry / Q000494:pharmacology*; D029595:Orchidaceae / Q000737:chemistry*; D012717:Sesquiterpenes / Q000032:analysis / Q000737:chemistry / Q000494:pharmacology; D014835:Volatilization
D039821:Monoterpenes; D012717:Sesquiterpenes