Effect of Atoxigenic Strains of Aspergillus flavus on Aflatoxin Contamination of Developing Cottonseed

Cotty, I', J. 1990. Erred of atoltiae. nie suains of ASfU, , ;l/wf1Q~W on allal01lin tonl. minltion of developinc cottonseed. Plant Dis. 74: 2) ) ·235. Simultaneous inoculation of wounded 28- to) 2-day-old collon bolls with loxiscnie and. to: r;~nic: strains of AqHrtillwjlovusJed 10 lower Iewls of. . n'toKin 81 (81) in the couons«d It maturity lhan in bolls inoculated with the tOlli!Cni<: strain alone. Six of seven aloxi!Cnic Sirains tested rtdueed the kwl of eontaminllion pcoduoed by loxirenic Jl, rains. Less 81 wu detected when the Itoxis-enic nin was introduoed into 1M wound I day before inoeulalion with. toxi. !cnic strain th&n. . . ben I, ougenic and toxi~ic: strains ᵣe coinoeulliled. In conlrasl, loxin kvels at maturity wue not rccIuocd wben the: atoxiceni<: Slrain WI5 inuoduc: ed I day Ifter lhe: loxipk Slnain. Use of analoxigeni<: 5trIin al Io-fold higher sporc COl) QCnlrlliolllcd to 5i&nirtellJlt m: luetion in BI if the atoxigenic strain wu introduced within 16 hr Iltcr tbe toxigenic strain. Aloxieenic swtins of A. j1QlilU may be u. serl, ll in biological control or I!latoxin contaminalion.