New perspectives for weeds control using autochthonous fungi with selective bioherbicide potential
Francisco Wilson Reichert Júnior,
Maurício Albertoni Scariot,
César Tiago Forte,
Leonardo Pandolfi,
Jaqueline Mara Dil,
Sabrina Weirich,
Carine Carezia,
Jéssica Mulinari,
Marcio Antônio Mazutti,
Gislaine Fongaro,
Leandro Galon,
Helen Treichel,
Altemir José Mossi
Affiliations
Francisco Wilson Reichert Júnior
Center for Agricultural Sciences, Federal University of Santa Catarina, Admar Gonzaga Highway, Itacorubi, Florianópolis, Brazil
Maurício Albertoni Scariot
Graduate Program in Plant Science, Federal University of Rio Grande do Sul, Bento Gonçalves Avenue, Porto Alegre, Brazil
César Tiago Forte
Graduate Program in Agronomy, Federal University of Santa Maria, Roraima Avenue, Camobi, Santa Maria, Brazil
Leonardo Pandolfi
Laboratory of Agroecology, Federal University of Fronteira Sul, Erechim campus, RS-135, Rural Area, Erechim, Brazil
Jaqueline Mara Dil
Laboratory of Agroecology, Federal University of Fronteira Sul, Erechim campus, RS-135, Rural Area, Erechim, Brazil
Sabrina Weirich
Laboratory of Agroecology, Federal University of Fronteira Sul, Erechim campus, RS-135, Rural Area, Erechim, Brazil
Carine Carezia
Laboratory of Agroecology, Federal University of Fronteira Sul, Erechim campus, RS-135, Rural Area, Erechim, Brazil
Jéssica Mulinari
Department of Chemical Engineering, Federal University of Santa Catarina, João Pio Duarte Silva street, Córrego Grande, Florianópolis, Brazil
Marcio Antônio Mazutti
Department of Chemical Engineering, Federal University of Santa Maria, Roraima Avenue, Camobi, Santa Maria, Brazil
Gislaine Fongaro
Laboratory of Microbiology and Bioprocess, Federal University of Fronteira Sul, Erechim campus, RS-135, Rural Area, Erechim, Brazil
Leandro Galon
Laboratory of Sustainable Management of Agricultural Systems, Department of Environmental Science and Technology, Federal University of Fronteira Sul, Erechim, Brazil
Helen Treichel
Laboratory of Microbiology and Bioprocess, Federal University of Fronteira Sul, Erechim campus, RS-135, Rural Area, Erechim, Brazil; Corresponding author.
Altemir José Mossi
Laboratory of Agroecology, Federal University of Fronteira Sul, Erechim campus, RS-135, Rural Area, Erechim, Brazil
The prospection of bioherbicides has been an alternative to weed control, aiming at mitigating chemical risks to human, animal and environmental health due to extreme use of synthetic herbicides. In the present study, various fungi were isolated from plants with symptoms of fungal diseases for bioherbicide purposes against weeds (Urochloa plantaginea, Euphorbia heterophylla and Bidens pilosa). Fungi isolated were identified by molecular methods and enzymatic products obtained by fungi fermentation (cellulase, lipase, peroxidase, and amylase) were quantified. Bioherbicide selectivity study was performed on crops (soybean and corn), as well as on resistant weeds. Among the isolated fungi, Fusarium oxysporum, Fusarium ploriferatum, and Trichoderma koningiopsis presented bioherbicide potential. T. koningiopsis, in particular, presented the highest effect on Euphorbia heterophylla (popular name - Mexican fire plant), causing up to 60% of foliar damage, without presenting phytotoxicity against corn crop. New perspectives for weeds control and their use in corn crops were prospected, considering the bioherbicide selectivity described in this study.
