Table 2.
Temephos | Detoxifying enzymesa | ||||||||
---|---|---|---|---|---|---|---|---|---|
Sample |
Origin |
Exposureb |
RR95c |
Statusd |
GST |
α-est |
P-est |
β-est |
MFO |
Rockefeller |
Laboratory |
N |
1.0 |
S |
RF |
RF |
RF |
RF |
RF |
RecL |
Laboratory |
N |
1.0 |
S |
U |
U |
U |
U |
U |
RecR (F20)e |
Laboratory |
Temephos |
179.8 |
HR |
A |
A |
U |
U |
A |
F. de Noronha |
Field |
Bti |
2.4 |
S |
HA |
A |
HA |
U |
U |
Bacabal |
Field |
Temephos |
6.6 |
MR |
HA |
A |
A |
U |
A |
Recife |
Field |
Temephos/Bti |
7.1 |
MR |
A |
U |
U |
U |
U |
Macapá |
Field |
Temephos/Bti/IGR |
11.0 |
HR |
A |
HA |
HA |
A |
U |
João Pessoa |
Field |
Temephos/Bti/IGR |
11.7 |
HR |
HA |
A |
HA |
U |
U |
Salgueiro |
Field |
Temephos |
60.0 |
HR |
HA |
U |
HA |
U |
A |
G. do Goitá |
Field |
Temephos |
72.0 |
HR |
A |
A |
A |
U |
U |
Oiapoque |
Field |
Temephos |
102.5 |
HR |
A |
HA |
HA |
U |
U |
Cedro |
Field |
Temephos |
132.7 |
HR |
HA |
A |
A |
U |
HA |
A. da Ingazeira |
Field |
Temephos |
120.6 |
HR |
HA |
HA |
HA |
A |
U |
S. J. do Egito |
Field |
Temephos |
124.7 |
HR |
HA |
U |
A |
U |
A |
S. C. do Capibaribe |
Field |
Temephos |
142.4 |
HR |
HA |
A |
HA |
U |
U |
Agrestina |
Field |
Temephos |
212.6 |
HR |
HA |
A |
A |
U |
A |
Araripina | Field | Temephos | 252.7 | HR | A | HA | A | U | U |
aGST (glutathione-S-transferases), α-est (α-esterases), P-est (PNPA esterases), β-est (β-esterases) and MFO (mixed-function oxidases) were classified according to Brasil (2006): RF-reference, U-unaltered, A-altered, HA-highly altered.
bExposure records until 2010 for temephos, Bti-Bacillus thuringiensis serovar israelensis, IGR (Diflubenzuron or Novaluron).
cResistance Ratio at Lethal Concentrations (mg/L) for 95% of exposed larvae after 24 h: LC for sample tested/LC for the Rockefeller colony.
dClassification adapted from Mazzari and Georghiou (1995): S-Susceptible (RR < 3), LR-Low Resistance (3 < RR < 5), MR-Moderate Resistance (5 < RR < 10), HR-High Resistance (>10).
eData from Strode et al. (2012).