BACKGROUND The flora of Saudi Arabia is one of the richest biodiversity areas in the Arabian Peninsula and comprises very important genetic resources of crop and medicinal plants. The present study was designed to investigate the cytotoxicity and the antibacterial activities of the organic extracts from twenty six Saudi Arabian medicinal plants. The study was also extended to the investigation ...

The aim of the current study is to determine total flavonoids, phenolics and antioxidant activities methanol extracts from aerial parts four endemic Haplophyllum species Türkiye (H. myrtifolium, H. vulcanicum, pumiliforme, sahinii). There are two populations collected different regions belonging myrtifolium pumiliforme. Antioxidant were measured by radical scavenging activity such as 2, 2′-azin...

background and objectives:  haplophyllum canaliculatum isan endemicand endangerediranian plant from rutaceae family. the object of this work was to study the volatile production in established shoot and callus cultures of haplophyllum canaliculatum as well as isolation, identification and sequencing of 18s rrna gene from callus culture. methods: shoot and callus cultures of h. canaliculatum wer...

A review of 21 species of Scaphidium Olivier from East China is presented, including 6 new species: S. jinmingi sp. n. (Zhejiang, Anhui, Chongqing), S. crypticum sp. n. (Zhejiang, Fujian, Jiangxi, Guangxi), S. varifasciatum sp. n. (Zhejiang, An'hui), S. robustum sp. n. (Fujian, Guizhou, Chongqing, Guangxi, Yunnan), S. connexum sp. n. (Zhejiang, Fujian, Guangxi), and S. bayibini sp. n. (An'hui)....

The fungotoxicity against Botrytis cinerea of a flavonoid isolated from Pseudognaphalium robustum was analyzed. Two absorption column chromatographies and one semipreparative thin layer chromatography were used to purify the active flavonoid. It was determined, by H-NMR spectroscopy and co-elution with standards in HPLC, that this compound was 5,7-dihydroxy-3,8-dimethoxyflavone (gnaphaliin A). ...

Studying and understanding the changes in molecular sequences of plants are important to better identification classifying species. Internal transcribed spacer (ITS) regions consider an informative genetic sequence find out variation among species same genus. In this study, ITS Haplophyllum collected Ashdagh Mountain were amplified, analyzed, compared with reference gathered from gene bank. The...