Purification and structural analysis of the toxin AP-I from the pathogen of Bambusa pervariabilis × Dendrocalamopsis grandis blight
Shujiang Li , Tianhui Zhu , Tianmin Qiao , Shan Han
Journal of Forestry Research ›› 2015, Vol. 26 ›› Issue (4) : 1035 -1042.
Purification and structural analysis of the toxin AP-I from the pathogen of Bambusa pervariabilis × Dendrocalamopsis grandis blight
Bambusa pervariabilis × Dendrocalamopsis grandis blight is caused by a toxin from the fungus Arthrinium phaeospermum (corda) M. B. Ellis. We used shaking culture in a modified Fries culture medium and methanol extraction to isolate the toxin. The optimal developing solvent mixture (methanol: ethyl acetate: H2O at 7:1.5:3) was selected using thin layer chromatography and used as the eluent for toxin purification by silica gel column chromatography. Two toxic fractions were identified in the bioassay. A flaxen oil substance, AP-I, showed higher toxicity than a toxic white powder, AP-II. The more toxic AP-I was determined to be dibutyl phthalate (C16H22O4, molecular weight of 278) by mass spectrometry, nuclear magnetic resonance, and infrared spectrophotometry. Dibutyl phthalate might contribute to the pathogenesis of bamboo blight.
Arthrinium phaeospermum / Bambusa pervariabilis × Dendrocalamopsis grandis / Infrared spectrophotometry / Mass spectrometry / Nuclear magnetic resonance / Toxin
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
Pedersen BF, Larsen R (1996) Identification of agricultural crops in Denmark by satellite Imagery. In: Proceedings, NJF seminar, report of the Finnish Geodetic Institute. Finnish Agricultural Research Centre, Jokoinen, vol 96, pp 4–8 |
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
|
| [33] |
|
| [34] |
|
| [35] |
|
| [36] |
|
| [37] |
|
| [38] |
|
| [39] |
|
| [40] |
|
| [41] |
|
| [42] |
|
| [43] |
|
| [44] |
|
/
| 〈 |
|
〉 |