Occurrence of (+)- and (-)-Gossypol in Wild Species of Cotton and in Gossypium hirsutum Var. marie-galante (Watt) Hutchinson

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• 作者：Robert D. Stipanovic ; Lorraine S. Puckhaber ; Alois A. Bell ; Albert E. Percival ; and John Jacobs
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2005
• 出版时间：August 10, 2005
• 年：2005
• 卷：53
• 期：16
• 页码：6266 - 6271
• 全文大小：53K
• 年卷期：v.53,no.16(August 10, 2005)
• ISSN：1520-5118

文摘

Gossypol occurs as a mixture of enantiomers in cottonseed. These enantiomers exhibit differentbiological activities. The (-)-enantiomer is toxic to animals, but it has potential medicinal uses.Therefore, cottonseed with >95% (-)-gossypol could have biopharmaceutical applications. The(+)-enantiomer shows little, if any, toxicity to nonruminant animals. Thus, cottonseed with >95%(+)-gossypol could be more readily utilized as a feed for nonruminants. The (+)- to (-)-gossypolratio in commercial Upland (Gossypium hirsutum) cottonseed is usually about 3:2, whereas that incommercial Pima cottonseed (Gossypium barbadense) is approximately 2:3. Herein are reportedthe (+)- to (-)-gossypol ratios in the seed from 28 wild species of cotton (194 accessions), 94accessions of G. hirsutum var. marie-galante, and 3 domesticated species (11 accessions). It wasfound that some or all of the accessions of Gossypium darwinii, Gossypium sturtianum, Gossypiumareysianum, Gossypium longicalyx, Gossypium harknessii, and Gossypium costulatum produce anexcess of (-)-gossypol but none >65%. At least one accession of Gossypium anomalum, Gossypiummustelinum, Gossypium gossypioides, and Gossypium capitis-viridis contained >94% (+)-gossypol. One of the 94 accessions of G. hirsutum var. marie-galante (i.e., no. 2469) contained 97%(+)-gossypol.Keywords: Cotton; (+)-gossypol; (-)-gossypol; Gossypium; wild cotton species; G. hirsutum var. marie-galante