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Structure and affinities of the petrified plants from the cretaceous of Northern Japan and Saghalien III petrified plants from the upper cretaceous of Saghalien
Five species including two new species,Araucarioxylon kiiense Ogura,Taxodioxylon albertense (Penhal.) Shimakura,Cupressinoxylon cryptomerioides Stopes,Xenoxylon watarianum sp. nov. andCedroxylon
Pinus haboroensis sp. nov. and the affinities of permineralized leaves from the Upper Cretaceous of Japan
A new species of Pinus is described based on permineralized needles from the Sankebetsugawa, Haboro, and the Koyanosawa, Ikushumbetsu, Mikasa City, Hokkaido, Japan, which has amphistomatic leaves with deeply sunken stomata most closely resemble Tournaisia marina.
Structure and affinities of the petrified plants from the cretaceous of Northern Japan and Saghalien XIIIYubaristrobus gen. nov., A new Taxodiaceous cone from the upper cretaceous of Hokkaido
Yubaristrobus is a new genus of the Taxodiaceae based on a permineralized seed cone from the Upper Cretaceous of Hokkaido characterized by peltate bract-scale complexes consisting of a completely-fused bract and scale.
Pinoid woods with resin canals from the upper cretaceous of Hokkaido and Saghalien
Six species of permineralized pinoid woods with resin canals from the Upper Cretaceous of Hokkaido, Japan and Saghalien are described and piceoxylon takahashii, which resembles P. scleromedullosum, is distinguished from the latter in having ray tracheids and nests of sclereids in pith.
Glyptostrobus rubenosawaensis sp. nov., a new permineralized conifer species from the Middle Miocene, Central Hokkaido, Japan
Anatomically well preserved fertile and vegetative remains of Glyptostrobus rubenosawaensis sp. nov. (Coniferae-Taxodiaceae) have been recovered from silicified lacustrine deposits of the late Middle
Homonojirimycin isomers and N-alkylated homonojirimycins: structural and conformational basis of inhibition of glycosidases.
Data imply that inhibition of HIV by glycosidase inhibitors can be due to factors other than simply inhibition of processing alpha-glucosidase I, as measured by inhibition of virus-induced cytopathogenicity in MT-4 cells.
Homonojirimycin Isomers and Glycosides from Aglaonema treubii
A 50% aqueous EtOH extract of Aglaonema treubii found to potently inhibit α-glucosidase was subjected to various ion-exchange column chromatographic steps to give
Homonojirimycin analogues and their glucosides from Lobelia sessilifolia and Adenophora spp. (Campanulaceae).
A isolate from the 50% methanol extract of the whole plant of Lobelia sessilifolia (Campanulaceae), which was found to potently inhibit rice alpha-glucosidase, yielded new homonojirimycin derivatives, which are a very specific and potent inhibitor of coffee bean alpha-galactosidases.
Yezonia, a new section ofAraucaria (Araucariaceae) based on permineralized vegetative and reproductive organs ofA. vulgaris comb. nov. from the upper cretaceous of Hokkaido, Japan
A reconstructed plant,Araucaria vulgaris, supports the theory that an araucarian plant that boreBrachyphyllum-like foliage and aEutacta-like seed cone was predicted by Harris in 1979 and proves the presence of an extinct characteristic-form of the genus.