Interactions on Growth Between Fusarium moniliforme, F. proliferatum, and Penicillium implicatum on Maize Grain Depending on Water Activity and Temperature Levels

1997 ◽  
Vol 25 (3) ◽  
pp. 497-498 ◽  
Author(s):  
S. Marín ◽  
F. Rull ◽  
A. J. Ramos ◽  
M. Torres ◽  
N. Sala ◽  
...  
Keyword(s):  
Water Activity ◽  
Fusarium Moniliforme ◽  
Maize Grain ◽  
Temperature Levels ◽  
Penicillium Implicatum

Effect of Water Activity on Hydrolytic Enzyme Production by Fusarium moniliforme and F. proliferatum on Maize Grain

1997 ◽  
Vol 25 (3) ◽  
pp. 499-500
Author(s):  
S. Marin ◽  
V. Sanchis ◽  
A. J. Ramos ◽  
I. Vinas ◽  
N. Magan
Keyword(s):  
Water Activity ◽  
Enzyme Production ◽  
Fusarium Moniliforme ◽  
Hydrolytic Enzyme ◽  
Effect Of Water ◽  
Maize Grain

Growth of Fusarium moniliforme and its biosynthesis of fumonisin B1 on maize grain as a function of different water activities

1995 ◽  
Vol 20 (4) ◽  
pp. 247-251 ◽  
Author(s):  
B. Cahagnier ◽  
D. Melcion ◽  
D. Richard-Molard
Keyword(s):  
Fusarium Moniliforme ◽  
Fumonisin B1 ◽  
Maize Grain

Fumonisin Production on Irradiated Corn Kernels: Effect of Inoculum Size

1999 ◽  
Vol 62 (7) ◽  
pp. 814-817 ◽  
Author(s):  
SOFIA N. CHULZE ◽  
MIRIAM G. ETCHEVERRY ◽  
SANDRA E. LECUMBERRY ◽  
CARINA E. MAGNOLI ◽  
ANA M. DALCERO ◽  
...  
Keyword(s):  
Water Activity ◽  
Fusarium Moniliforme ◽  
Direct Relationship ◽  
Inoculum Size ◽  
Corn Kernels

Production of fumonisins B1, B2, and B3 by Fusarium moniliforme was evaluated on irradiated corn kernels inoculated with different spore concentrations (10, 102, 103, 105, and 106), a water activity of 0.97, and a temperature of 25°C. There was a direct relationship between the level of toxin produced and inoculum size. The highest levels of total fumonisin produced after 35 days of incubation were 5,028 and 9,063 ng/g at 105 and 106 spores per ml, respectively. The pattern of fumonisin production (FB1 > FB2 > FB3) in cultures growing from different inocula was not affected during the 35 days of incubation. The ratio between FB2 and FB1 varied from 0.15 to 0.42, whereas the ratio between FB3 and FB1 varied from 0.34 to 0.87.

Water and temperature relations and microconidial germination of Fusarium moniliforme and Fusarium proliferatum from maize

1996 ◽  
Vol 42 (10) ◽  
pp. 1045-1050 ◽  
Author(s):  
Sonia Marín ◽  
V. Sanchis ◽  
A. Teixido ◽  
R. Saenz ◽  
A. J. Ramos ◽  
...  
Keyword(s):  
Water Activity ◽  
Fusarium Moniliforme ◽  
Potential Temperature ◽  
Gompertz Model ◽  
Linear Increase ◽  
Fusarium Proliferatum ◽  
Activity Temperature ◽  
Lag Times ◽  
Lag Phases

The effects of water activity (aw, 0.994–0.85 = 0.4–21.0 (−)MPa water potential), temperature (5–42 °C), and their interactions on microconidial germination of three isolates each of Fusarium moniliforme and Fusarium proliferatum were determined in vitro on a maize meal extract medium. Temporal germination rates of microconidia of isolates of both species were significantly influenced by both aw and temperature. Germination was very rapid at >0.94 aw with an almost linear increase with time. Germination rates of microconidia of F. moniliforme were slower than those of F. proliferatum isolates at marginal aw levels and 5–25 °C, while at higher temperature (30–37 °C), the former germinated more rapidly than the latter. The aw minima for germination of isolates of both species was 0.88, with none occurring at 0.85 aw over a 40-day incubation period. At 37 °C, isolates of F. moniliforme had slightly lower aw minima than those of F. proliferatum. The narrowest range of aw for germination was at 5 °C, and none occurred at 42 °C. The effect of aw × temperature interactions on the lag phases (h) prior to germination and the germination rates (h−1) were estimated using the Gompertz model and the Zwietering equation. This showed that lag phases were shorter at 25–30 °C and 0.994–0.98 aw, and were increased to 10–500 h at marginal temperatures (5–10 °C) for F. proliferatum and longer for F. moniliforme. At marginal aw levels (0.92–0.90), lag times were increased to >250 h. Germination rates (h−1) were different for the two species. Microconidia of F. moniliforme germinated optimally at 25–37 °C and 0.96–0.98 aw, but this changed to 30 °C at 0.90–0.94 aw, while germination of microconidia of F. proliferatum remained optimum at 30 °C, regardless of aw. There were statistically significant (P < 0.01) effects of aw, temperature, isolate, and two- and three-way interactions for F. proliferatum, but there were no intraisolate effects for F. moniliforme. The ecological significance of these data for understanding colonization patterns of these important fumonisin-producing fungi are discussed.Key words: water activity, temperature, germination, fumonisin producing, Fusarium spp.

Effect of water activity and temperature on growth and fumonisin B1and B2production by Fusarium proliferatum and F. moniliforme on maize grain

1995 ◽  
Vol 21 (5) ◽  
pp. 298-301 ◽  
Author(s):  
S. Marin ◽  
V. Sanchis ◽  
I. Vinas ◽  
R. Canela ◽  
N. Magan
Keyword(s):  
Water Activity ◽  
Fusarium Proliferatum ◽  
Effect Of Water ◽  
Maize Grain

Effect of Water Activity and Temperature on Production of Fumonisins B1 and B2 by Fusarium moniliforme (CB 185) in Corn Cultures

1997 ◽  
Vol 25 (3) ◽  
pp. 369-370
Author(s):  
M. L. Martins ◽  
M. A. P. Peito ◽  
H. M. Martins
Keyword(s):  
Water Activity ◽  
Fusarium Moniliforme ◽  
Effect Of Water ◽  
Fumonisins B1 And B2

The effect of fungal competition on colonization of maize grain by Fusarium moniliforme, F. proliferatum and F. graminearum and on fumonisin B1 and zearalenone formation

2000 ◽  
Vol 59 (1-2) ◽  
pp. 59-66 ◽  
Author(s):  
A Velluti ◽  
S Marı́n ◽  
L Bettucci ◽  
A.J Ramos ◽  
V Sanchis
Keyword(s):  
Fusarium Moniliforme ◽  
Fumonisin B1 ◽  
Maize Grain ◽  
Fungal Competition
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