eprintid: 5541 rev_number: 7 eprint_status: archive userid: 30 dir: disk0/00/00/55/41 datestamp: 2012-02-18 09:34:40 lastmod: 2012-02-18 09:34:40 status_changed: 2012-02-18 09:34:40 type: article metadata_visibility: show contact_email: Library-ICRISAT@cgiar.org creators_name: Gopalakrishnan, S creators_name: Beale, M H creators_name: Ward, J L creators_name: Strange, R N icrisatcreators_name: Gopalakrishnan, S affiliation: University College London(London) affiliation: The National Centre for Plant and Microbial Metabolomics(Harpenden) affiliation: ICRISAT(Patancheru) country: UK country: India title: Chickpea wilt: identification and toxicity of 8-O-methyl-fusarubin from Fusarium acutatum ispublished: pub subjects: s1.1 full_text_status: restricted note: We thank Mr. Muhammad Hanif for making the isolations of fungi and the European Union for support with the grant “Ascorab” (Contract No. ICA4-CT-2000-30003). We thank Jason Ejimadu (RRES) for mass spectrometry abstract: Fusarium acutatum was isolated from wilting chickpea plants in Pakistan. Filtrates from cultures grown on a defined liquid medium caused permanent wilting of chickpea cuttings and killed cells, isolated enzymically from healthy plants, in a bioassay. Toxic activity was retained by a cyano solid phase extraction cartridge and the toxin was isolated by elution from the cartridge in acetonitrile and Si-gel thin layer chromatography of the eluate. Analytical HPLC of the compound on a cyano column with diode array detection gave a single peak with a homogeneous spectrum and λmax at 224 and 281 nm. NMR and mass spectral studies showed that the toxin was 8-O-methyl-fusarubin. The pure compound caused permanent wilting of chickpea cuttings and the LD50 value in the cell bioassay was 327 ng/ml. date: 2005 date_type: published publication: Phytochemistry volume: 66 number: 13 publisher: Elsevier pagerange: 1536-1539 refereed: TRUE issn: 0031-9422 official_url: http://dx.doi.org/10.1016/j.phytochem.2005.04.037 related_url_url: http://scholar.google.co.in/scholar?hl=en&q=allintitle%3A+%22Chickpea+wilt%3A+identification+and+toxicity+of+8-O-methyl-fusarubin+from+Fusarium+acutatum%22&btnG=Search&as_sdt=0%2C5&as_ylo=&as_vis=0 related_url_type: author funders: European Union citation: Gopalakrishnan, S and Beale, M H and Ward, J L and Strange, R N (2005) Chickpea wilt: identification and toxicity of 8-O-methyl-fusarubin from Fusarium acutatum. Phytochemistry, 66 (13). pp. 1536-1539. ISSN 0031-9422 document_url: http://oar.icrisat.org/5541/1/Phytochemistry_66_1536%E2%80%931539_2005.pdf