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Ginkgo biloba leaves and sarcotesta contain ginkgolic acids [83] – which are highly allergenic – long-chain alkylphenols, such as bilobol or adipostatin A [84] (bilobol is a substance related to anacardic acid from cashew nut shells and urushiols present in poison ivy and other Toxicodendron spp.) [9] [80] Individuals with a history of ...
The ginkgo (Ginkgo biloba) is a living fossil, with fossils similar to the modern plant dating back to the Permian, 270 million years ago. The closest living relatives of the clade are the cycads, [4] which share with the extant G. biloba the characteristic of motile sperm.
[4] [5] It has been long used for a wide range of medicinal purposes. For instance, in Japan and China, Ginkgo biloba is used to treat cough, bronchial asthma, irritable bladder and alcohol use disorder. [6] Ginkgotoxin is found in the seeds and, in lesser amounts, in the leaves of Ginkgo biloba. The seeds can be consumed as is and the leaves ...
Ginkgoales are a gymnosperm order containing only one extant species: Ginkgo biloba, the ginkgo tree. [1] The order has a long fossil record extending back to the Early Permian around 300 million years ago from fossils found worldwide.
[a] They developed more than 350 million years ago, long before flowering plants, according to the fossil record. The name comes from the Greek for "naked seed"; the egg cells are not protected by ovaries, as in flowering plants. [4] Gymnosperms are divided into 12 families of trees, shrubs and woody vines. [5]
Ginkgoidae is a subclass of Equisetopsida in the sense used by Mark W. Chase and James L. Reveal in their 2009 article "A phylogenetic classification of the land plants to accompany APG III."
Ginkgolide B, specifically, is a diterpenoid trilactone with six five-membered rings. It contains a spiro[4,4]-nonane carbocyclic ring, a tetrahydrofuran ring, and a very specific tert-butyl group at one of the rings (Figure 1).
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