Biodegradation of polyethylene terephthalate microplastics by Paenibacillus naphthalenovorans PETKKU2: Response surface optimization and genomic evidence for an alternative degradation mechanism - Aophat Choonut; Nantharat Wongfaed; Auraiwan Poolpol; Sophon Boonlue; Kitirote Wantala; Onruthai Pinyakong; Pensri Plangklang; Alissara Reungsang (PLoS ONE, 2026)