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Premise Of The Study: Microsatellite loci were isolated and characterized for a worldwide invasive weed Chromolaena odorata (Asteraceae) to elucidate the population genetic structure and invasive history. •
Methods And Results: A total of 14 microsatellite primer pairs were developed using the Fast Isolation by AFLP of Sequences Containing repeats (FIASCO) protocol, and their polymorphism was assessed in two natural populations of C. odorata from Mexico and Trinidad and Tobago. Eleven loci showed polymorphism and eight of these loci were successfully amplified in Ageratina adenophora, another invasive weed related to C. odorata. •
Conclusions: These microsatellite markers are useful for investigating the population genetic structure and the history of range expansion of these invasive species.
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http://dx.doi.org/10.3732/ajb.1100169 | DOI Listing |
J Toxicol Environ Health A
September 2025
Department of Ecology and Conservation, Natural Sciences Institute, Federal University of Lavras, Lavras, MG, Brazil.
Flumioxazin-based herbicides are frequently used in agriculture to control broadleaf weeds attributed to their high efficacy, rapid action, and residual soil activity, making these compounds a preferred choice over other herbicides in pre-emergence weed control. Due to their beneficial properties, use of these herbicides has significantly increased in recent years, raising concerns regarding potential environmental risks. This study aimed to examine the effects of a commercial flumioxazin-based formulation on different plant models.
View Article and Find Full Text PDFPest Manag Sci
September 2025
AgResearch Ltd, Tuhiraki, Lincoln, New Zealand.
Background: Conventional weed risk assessments (WRAs) are time-consuming and often constrained by species-specific data gaps. We present a validated, algorithmic alternative, the model, that integrates climatic suitability ( ), weed-related publication frequency (P) and global occurrence data ( ), using publicly available databases and artificial intelligence (AI)-assisted text screening with a large language model (LLM).
Results: The model was tested against independent weed hazard classifications for New Zealand and California.
Appl Environ Microbiol
September 2025
Univ Montpellier, IRD, CIRAD, INRAE, Institut Agro, Plant Health Institute of Montpellier, Montpellier, France.
pv. is a pathogen of rice responsible for bacterial leaf streak, a disease that can cause up to 32% yield loss. While it was first reported a century ago in Asia, its first report in Africa was in the 1980s.
View Article and Find Full Text PDFACS Omega
September 2025
Department of Animal and Plant Biology, State University of Londrina (UEL), Londrina, Paraná 86057-970, Brazil.
Previous work has shown that nanoencapsulation of atrazine enhances the herbicidal action of this active ingredient. This increased activity is expected to control weeds and not compromise the tolerance of maize plants to the herbicide. This study aimed to evaluate the tolerance of maize plants to atrazine in postemergence application with different nanoformulations.
View Article and Find Full Text PDFPestic Biochem Physiol
November 2025
Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of Agricultural Functional Molecule Design and Utilization of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China. Electronic address:
Pigment biosynthesis serves as a fundamental physiological process vital for weeds survival. Disruption of this pathway leads to the depletion of critical pigments, ultimately resulting in weeds death. Consequently, pigment biosynthesis has become a valuable target in modern herbicide development.
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