Reproductive and Pollination Biology of Magnolia and its Allied Genera (Magnoliaceae). I. Floral Volatiles of Several Magnolia and Michelia Species and their Roles in Attracting Insects
Reproductive and Pollination Biology of Magnolia and its Allied Genera (Magnoliaceae). I. Floral Volatiles of Several Magnolia and Michelia Species and their Roles in Attracting Insects
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木兰及其近缘属（木兰科）的繁殖和授粉生物学。
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
S. Kawano
中科院分区：
文献类型：
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作者：
Shoko Yasukawa;H. Kato;R. Yamaoka;Hajime Tanaka;Hirohito Arai;S. Kawano;S. Kawano
摘要对木兰属8个分类群的花挥发性物质进行了研究。山慈姑亚种japonica，M.前果变种praecocissima和var. borealis、北毛叶蝉M. tomentosa，M. salicifolia，M. obovata，M. denudata和M. grandiflora）和含笑属（M.这些木兰属和含笑属植物的挥发性物质主要由甲羟戊酸途径产生的单萜类和倍半萜类、乙酸-丙二酸途径产生的乙酸配基和莽草酸途径产生的苯丙素类组成。这些木兰属和含笑属物种都具有挥发性单萜类化合物，acetogenins，和苯丙素类化合物的各种组合，除了木兰obovata，其中主要排放倍半萜。分析了12种木兰属植物和1种鹅掌楸属植物花粉中的游离氨基酸，并评价了它们作为传粉昆虫食物来源的价值。
在它们的原产地收集并鉴定了访问五种木兰花的传粉者。它们的行为和授粉媒介的作用进行了评估。
Abstract Volatile substances emitted from the flowers of eight Magnolia taxa (M. sieboldii ssp. japonica, M. praecocissima var. praecocissima and var. borealis, M. tomentosa, M. salicifolia, M. obovata, M. denudata, and M. grandiflora) and one Michelia species (M. compressa) (Magnoliaceae) were examined and identified using GC-MS. Volatile substances of these Magnolia and Michelia species consist primarily of monoterpenoids and sesquiterpenoids produced by the mevalonate pathway, acetogenins by the acetate-malonate pathway, and phenyl-propanoids by the shikimate pathway. These Magnolia and Michelia species all possessed various combinations of volatile monoterpenoids, acetogenins, and phenylpropanoids, except for Magnolia obovata, which emitted primarily sesquiterpenoids. Free amino acids in pollen of 12 Magnolia and one Liriodendron species were also analyzed, and their value as food sources for pollinators evaluated.
Pollinators visiting the flowers of five Magnolia species were collected in their native sites and identified. Their behaviors and roles as pollinating agents were assessed.