Cytenamide forms a 1:1 solvate with butyric acid [systematic name: 5H-dibenzo[a,d]cyclo-hepta-triene-5-carboxamide-butanoic acid (1/1)], C(16)H(13)NO·C(4)H(8)O(2). The title compound crystallizes with one mol-ecule of cytenamide and one of butyric acid in the asymmetric unit; these mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds to form an R(2) (2)(8) heterodimer motif. Pairs of adjacen...

Dioscorea species or commonly named as yam is reported to be one of the major food sources worldwide. This ethnobotanical study was conducted to document local knowledge and potentials of DioscoreahispidaDennst. and to investigate and record its distribution in three districts of Terengganu. Information was gathered from 23 villagers from three districts of Besut, Marang and Setiu by using semi...

Phenanthrene Biosynthesis, Bibenzyl Synthase, Batatasins, D ioscoreaceae The bibenzyl batatasin III was formed de novo in aerial bulbils and tubes o f D ioscoreaceae from dihydro-m-coumaric acid. In cell-free preparations, bibenzyl synthase activity and an O-methyltransferase converting 3,3',5-trihydroxybibenzyl into batatasin III were detected. High rates o f incorporation o f dihydro-m-coumar...

In the crystal structure of the title salt {systematic name: 4-[3-(5H-dibenz[b,f]azepin-5-yl)prop-yl]-1-(2-hy-droxy-eth-yl)piperazin-1-ium (2Z)-3-carb-oxy-prop-2-enoate}, C(23)H(30)N(3)O(+)·C(4)H(3)O(4) (-), the piperazine group in the opipramol cation is protonated at only one of the N atoms. In the cation, the dihedral angle between the two benzene rings is 53.5 (6)°. An extensive array of in...

A new natural product named longanlactone was isolated from Dimocarpus longan Lour. seeds. Its structure was determined as 3-(2-acetyl-1H--pyrrol-1-yl)-5-(prop-2-yn-1-yl)dihydrofuran-2(3H)-one by spectroscopic methods and HRESIMS.

Paederus (Harpopaederus) xui Peng & Li, sp. n. (Sichuan: Micang Shan) is described. Additional records of five Harpaederus species are reported. All of these species are illustrated.

Changes of glaciers and glacial lakes and their causes were examined in the Hengduan Shan from 1990 to 2014, based on Landsat TM/ETM+/OLI images. A total glacier area of 1298.8 ± 62.1 km and glacial lake area of 255.8 ± 31.6 km were inventoried in 2014. The area of glaciers declined at an average rate of −0.40 ± 0.26% a, while glacial lakes expanded at average rate of +0.12 ± 0.03% a over the p...

A study was conducted to investigate the influence of planting methods and tuber weight on growth and yield of local yam cultivars obtained by the minisett technique from white yam (D. rotundata) in Gabon. Trials were carried out in 2014 and 2015 at the experimental ground of the Higher National Institute of Agronomy and Biotechnology, under natural conditions of lightness, temperature and rela...

Diosgenin, a steroidal sapogenin, occurs abundantly in plants such as Dioscorea alata, Smilax China, and Trigonella foenum graecum. This bioactive phytochemical not only is used as an important starting material for the preparation of several steroidal drugs in the pharmaceutical industry, but has revealed also high potential and interest in the treatment of various types of disorders such as c...