Table 2.

Mycotoxin levels in root and other tissues of soybean plants collected from soybean fields in Mississippi in 2004.

Sample Name	Charcoal Rot Disease	Soybean Tissue Type	(-)-Botryodiplodin (µg/g) a	Phomenone (µg/g) a	Gigantenone (µg/g) a	Phaseolinone (µg/g) a
RTS 999 302	Yes	Roots	0.786	0	0	0
USG 7582 306	Yes	Roots	0.13	0	0	0
DK B58-51 326	Yes	Roots	0.23	0	0	0
AG 5903 324	Yes	Roots	0.046	0	0	0
AG 5701 329	Yes	Roots	0.139	0	0	0
PGX 5703 313	Yes	Roots	0.334	0	0	0
PGY 5822 319	Yes	Roots	0.332	0	0	0
ESXVT-46 328	Yes	Roots	0.134	0	0	0
P 95 B96 301	Yes	Roots	0.006	0	0	0
P GX 5714 311	Yes	Roots	0.141	0	0	0
Garst 5812 331	Yes	Roots	0.209	0	0	0
DK 5767 32	Yes	Roots	0.061	0	0	0
All samples tested	Yes	Seeds	0	0	0	0
All samples tested	Yes	Pulp	0	0	0	0
All samples tested	Yes	Branches	0	0	0	0
All samples tested	Yes	Twigs	0	0	0	0
All samples tested	Yes	Leaves	0	0	0	0
Undiseased control b	No	Roots	0	0	0	0

^a Identification and quantification of toxins in samples by LC/MS were based on one standard due to the limited amount of standards available. ^b Soybean plants of the Saline cultivar with no detectable sign of charcoal rot disease were collected from commercial fields in Mississippi. Samples of the same six tissues were taken, pooled, and extracted in the same way as tissues from diseased plants and the extracts were assayed by LC/MS in the same manner. Extracts of all undiseased soybean tissues, including roots, contained no detectable (-)-botryodiplodin or other toxin.