Two-dimensional environmental profiles of growth, deoxynivalenol and nivalenol production by Fusarium culmorum on a wheat-based substrate

被引:50
作者
Hope, R [1 ]
Magan, N [1 ]
机构
[1] Cranfield Univ, Appl Mycol Grp, Ctr Biotechnol, Bedford MK45 4DT, England
关键词
deoxynivalenol; Fusarium culmorum; nivalenol; temperature growth; water activity;
D O I
10.1046/j.1472-765X.2003.01358.x
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Aims: To determine the effect of interacting conditions of water activity (a(w), 0.99-0.85), temperature (15, 25degreesC) and time (40 days) on growth and production of the mycotoxins deoxynivalenol (DON) and nivalenol (NIV) by Fusarium culmorum on a wheat-based agar medium. Methods and Results: Fusarium culmorum grew optimally at 0.995a (w) and minimally at 0.90 at both 15 and 25degreesC. No growth was observed at <0.90a(w). Overall, temperature, a(w) and their interaction had a statistically significant effect on the growth rate of F. culmorum . Production of both DON and NIV were over a much narrower range (0.995-0.95a(w)) than that for growth. The highest concentrations of DON and NIV levels were produced at 0.995a(w) and 0.981a(w) at 25 degrees C, respectively, after 40 days of incubation. Statistically, a(w), temperature and incubation time, and a(w) x temperature and temperature x incubation time had a statistically significant effect on DON/NIV production. Conclusions: This is the first detailed report on the two-dimensional environmental profiles for DON/NIV production by F. culmorum in the UK. Significance and Impact of the Study: As part of a hazard analysis critical control point (HACCP) approach, this type of information is critical in monitoring critical control points for prevention of DON/NIV entering the wheat production chain.
引用
收藏
页码:70 / 74
页数:5
相关论文
共 11 条
[1]   Deoxynivalenol and ochratoxin A in German wheat and changes of level in relation to storage parameters [J].
Birzele, B ;
Prange, A ;
Krämer, J .
FOOD ADDITIVES AND CONTAMINANTS, 2000, 17 (12) :1027-1035
[2]   Impact of competitive fungi on trichothecene production by Fusarium graminearum [J].
Cooney, JM ;
Lauren, DR ;
di Menna, ME .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2001, 49 (01) :522-526
[3]   Fusarium mycotoxins:: a review of global implications for animal health, welfare and productivity [J].
D'Mello, JPF ;
Placinta, CM ;
Macdonald, AMC .
ANIMAL FEED SCIENCE AND TECHNOLOGY, 1999, 80 (3-4) :183-205
[4]  
Dallyn H., 1978, THESIS POLYTECHNIC S
[5]  
Jennings P, 2000, PROC BRIGHTON CROP, V1-3, P707
[6]   Effects of infection time and moisture on development of ear blight and deoxynivalenol production by Fusarium spp. in wheat [J].
Lacey, J ;
Bateman, GL ;
Mirocha, CJ .
ANNALS OF APPLIED BIOLOGY, 1999, 134 (03) :277-283
[7]   Relationship between growth and mycotoxin production by Fusarium species, biocides and environment [J].
Magan, N ;
Hope, R ;
Colleate, A ;
Baxter, ES .
EUROPEAN JOURNAL OF PLANT PATHOLOGY, 2002, 108 (07) :685-690
[8]   EFFECT OF WATER ACTIVITY, TEMPERATURE AND SUBSTRATE ON INTERACTIONS BETWEEN FIELD AND STORAGE FUNGI [J].
MAGAN, N ;
LACEY, J .
TRANSACTIONS OF THE BRITISH MYCOLOGICAL SOCIETY, 1984, 82 (JAN) :83-93
[9]   WATER RELATIONS OF SOME FUSARIUM SPECIES FROM INFECTED WHEAT EARS AND GRAIN [J].
MAGAN, N ;
LACEY, J .
TRANSACTIONS OF THE BRITISH MYCOLOGICAL SOCIETY, 1984, 83 (SEP) :281-285
[10]  
Magan N., 1985, TRICHOTHECENES OTHER, P243