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Journal of Zhejiang University SCIENCE B

ISSN 1673-1581(Print), 1862-1783(Online), Monthly

Potential natural exposure of endangered red-crowned crane (Grus japonensis) to mycotoxins aflatoxin B1, deoxynivalenol, zearalenone, T-2 toxin, and ochratoxin A

Abstract: A survey was conducted to determine whether mycotoxins were present in the foods consumed by red-crowned cranes (Grus japonensis) in the Yancheng Biosphere Reserve, China. Collected in the reserve’s core, buffer, and experimental zones during overwintering periods of 2013 to 2015, a total of 113 food samples were analyzed for aflatoxin B1, deoxynivalenol, zearalenone, T-2 toxin, and ochratoxin A using high performance liquid chromatography (HPLC). The contamination incidences vary among different zones and the mycotoxins levels of different food samples also presented disparity. Average mycotoxin concentration from rice grain was greater than that from other food types. Among mycotoxin-positive samples, 59.3% were simultaneously contaminated with more than one toxin. This study demonstrated for the first time that red-crowned cranes were exposed to mycotoxins in the Yancheng Biosphere Reserve and suggested that artificial wetlands could not be considered good habitats for the birds in this reserve, especially rice fields.

Key words: Food, Mycotoxin, Red-crowned crane, Yancheng Biosphere Reserve

Chinese Summary  <22> 盐城生物圈保护区越冬丹顶鹤受到真菌毒素威胁的研究

目的:调查在盐城生物圈保护区越冬的丹顶鹤食物是否受到真菌毒素污染以及评估丹顶鹤受到真菌毒素威胁的风险。
创新点:首次证明在盐城生物圈保护区越冬的丹顶鹤受到真菌毒素的威胁。
方法:2013年11月至2015年3月,两个越冬期内在盐城生物圈保护区采集丹顶鹤不同觅食生境内113份食物样品。使用高效液相色谱法对这些食物中毒素(黄曲霉毒素B1(AFB1)、脱氧雪腐镰刀菌烯醇(DON)、玉米赤霉烯酮(ZEN)、T-2毒素(T-2)和赭曲霉毒素A(OTA))含量进行检测。
结论:盐城生物圈保护区内丹顶鹤食物受到真菌毒素的污染,人工湿地尤其是稻田不适宜作为鸟类的觅食地。

关键词组:食物;真菌毒素;丹顶鹤;盐城生物圈保护区


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DOI:

10.1631/jzus.B1500211

CLC number:

S858

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On-line Access:

2016-02-01

Received:

2015-09-03

Revision Accepted:

2015-12-20

Crosschecked:

2016-01-14

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