Teosinte (Zea mays ssp parviglumis) growth and transcriptomic response to weed stress identifies similarities and differences between varieties and with modern maize varieties

Bruggeman, Stephanie A.; Horvath, David P.; Fennell, Anne; Gonzalez-Hernandez, Jose L.; Clay, Sharon A.

doi:10.1371/journal.pone.0237715

Cited by 6 publications

(2 citation statements)

References 38 publications

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“…For example, plants exposed to high levels of far-red light grow taller with more fragile stems (increase lodging), flower earlier (less accumulation of resources for seed production), and produce fewer leaves (limited uptake of nutrients and water) (Huber et al 2021). There have been numerous studies designed to identify gene expression differences in crops and model plants in response to weed pressure (Bowsher et al 2017;Bruggeman et al 2020;Horvath et al 2015Horvath et al , 2018Horvath et al , 2019.…”

Section: Role Of Plant Physiology In Weed-crop Competitionmentioning

confidence: 99%

Agricultural Research Service Weed Science Research: Past, Present, and Future

Young¹,

Anderson²,

Baerson

et al. 2023

Weed Sci

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The U.S. Department of Agriculture–Agricultural Research Service (USDA-ARS) has been a leader in weed science research covering topics ranging from the development and use of integrated weed management (IWM) tactics to basic mechanistic studies, including biotic resistance of desirable plant communities and herbicide resistance. ARS weed scientists have worked in agricultural and natural ecosystems, including agronomic and horticultural crops, pastures, forests, wild lands, aquatic habitats, wetlands, and riparian areas. Through strong partnerships with academia, state agencies, private industry, and numerous federal programs, ARS weed scientists have made contributions to discoveries in the newest fields of robotics and genetics, as well as the traditional and fundamental subjects of weed–crop competition and physiology and integration of weed control tactics and practices. Weed science at ARS is often overshadowed by other research topics; thus, few are aware of the long history of ARS weed science and its important contributions. This review is the result of a symposium held at the Weed Science Society of America’s 62nd Annual Meeting in 2022 that included 10 separate presentations in a virtual Weed Science Webinar Series. The overarching themes of management tactics (IWM, biological control, and automation), basic mechanisms (competition, invasive plant genetics, and herbicide resistance), and ecosystem impacts (invasive plant spread, climate change, conservation, and restoration) represent core ARS weed science research that is dynamic and efficacious and has been a significant component of the agency’s national and international efforts. This review highlights current studies and future directions that exemplify the science and collaborative relationships both within and outside ARS. Given the constraints of weeds and invasive plants on all aspects of food, feed, and fiber systems, there is an acknowledged need to face new challenges, including agriculture and natural resources sustainability, economic resilience and reliability, and societal health and well-being.

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Section: Role Of Plant Physiology In Weed-crop Competitionmentioning

confidence: 99%

Agricultural Research Service Weed Science Research: Past, Present, and Future

Young¹,

Anderson²,

Baerson

et al. 2023

Weed Sci

Self Cite

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“…parviglumis). These two plants are closely related phylogenetically, likely sharing a common ancestor ( Bruggeman et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Vacuolar proteases and autophagy in phytopathogenic fungi: A review

Juárez-Montiel

Clark-Flores²,

Tesillo-Moreno³

et al. 2022

Front. Fungal Biol.

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Autophagy (macroautophagy) is a survival and virulence mechanism of different eukaryotic pathogens. Autophagosomes sequester cytosolic material and organelles, then fuse with or enter into the vacuole or lysosome (the lytic compartment of most fungal/plant cells and many animal cells, respectively). Subsequent degradation of cargoes delivered to the vacuole via autophagy and endocytosis maintains cellular homeostasis and survival in conditions of stress, cellular differentiation, and development. PrA and PrB are vacuolar aspartyl and serine endoproteases, respectively, that participate in the autophagy of fungi and contribute to the pathogenicity of phytopathogens. Whereas the levels of vacuolar proteases are regulated by the expression of the genes encoding them (e.g., PEP4 for PrA and PRB1 for PrB), their activity is governed by endogenous inhibitors. The aim of the current contribution is to review the main characteristics, regulation, and role of vacuolar soluble endoproteases and Atg proteins in the process of autophagy and the pathogenesis of three fungal phytopathogens: Ustilago maydis, Magnaporthe oryzae, and Alternaria alternata. Aspartyl and serine proteases are known to participate in autophagy in these fungi by degrading autophagic bodies. However, the gene responsible for encoding the vacuolar serine protease of U. maydis has yet to be identified. Based on in silico analysis, this U. maydis gene is proposed to be orthologous to the Saccharomyces cerevisiae genes PRB1 and PBI2, known to encode the principal protease involved in the degradation of autophagic bodies and its inhibitor, respectively. In fungi that interact with plants, whether phytopathogenic or mycorrhizal, autophagy is a conserved cellular degradation process regulated through the TOR, PKA, and SNF1 pathways by ATG proteins and vacuolar proteases. Autophagy plays a preponderant role in the recycling of cell components as well as in the fungus-plant interaction.

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