Article
Microbiology
Jenna C. M. Dale, Jonathan A. Newman
Summary: This study used next-generation sequencing to describe the foliar fungal communities of field-grown tall fescue and investigated the impact of Epichloe coenophiala on these communities. The results showed that fungal communities did not differ strongly between Epichloe treatments, but varied significantly between different years.
Article
Agronomy
Randy D. Dinkins, Brenda L. Coe, Timothy D. Phillips, Huihua Ji
Summary: Tall fescue (Lolium arundinaceum) is a widely grown grass that owes its adaptability and productivity to the presence of an endophytic fungus called Epichloe coenophiala. This fungus produces alkaloid compounds that can repel insects or be toxic to animals. The study aimed to determine the contribution of plant genotype to alkaloid concentrations in tall fescue plants. The results showed that while alkaloid concentrations varied among plant genotypes over three years, the overall levels remained relatively constant, indicating that plant genotype is responsible for determining alkaloid levels.
Article
Horticulture
Andrew R. Muntz, T. Karl Danneberger, John R. Street, David S. Gardner
Summary: The objective of this experiment was to find an acceptable method for spring turfgrass establishment without the use of pesticides. The results showed that using leaf compost as a soil amendment resulted in denser and higher percentage of turfgrass cover compared to other treatments.
Article
Plant Sciences
Maria Tartaglia, Daniela Zuzolo, Alessia Postiglione, Antonello Prigioniero, Pierpaolo Scarano, Rosaria Sciarrillo, Carmine Guarino
Summary: This study validates the potential of a microbial consortium combined with a plant for in-situ remediation of polluted soil. Through enzymatic activity analysis and chemical analyses, the study found that this method can significantly reduce the main pollutants in the soil. The metatranscriptomic approach used to analyze enzymatic activity in the rhizosphere revealed an increased abundance of enzymes involved in rhizospheric activities and pollutant removal. The findings of this study are important for the advancement of rhizosphere engineering.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Danuta Martyniak, Kamil Prokopiuk, Grzegorz Zurek, Krystyna Rybka
Summary: This paper investigates the physiological reactions of the main cool-season grass species used for turf in a temperate climate to a twice-a-year trinexapac-ethyl (TE) application. The results show that high concentrations of TE are harmful to Kentucky bluegrass, while perennial ryegrass and tall fescue exhibit different physiological responses to different concentrations and seasons of TE treatment.
Article
Plant Sciences
Maryamsadat Vaziriyeganeh, Shanjida Khan, Janusz J. J. Zwiazek
Summary: In this study, the expression of aquaporins in several northern grasses with different salt tolerance was analyzed. It was found that the aquaporin PnuPIP2;2 was significantly upregulated in the halophytic grass Puccinellia nuttalliana after NaCl treatment. Functional analysis showed that PnuPIP2;2 not only facilitated water transport, but also increased Na+ uptake in yeast cells. Structural analysis revealed the unique pore characteristics of PnuPIP2;2, which may contribute to its transport properties.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Agronomy
Jinqing Zhang, Huiling Ma
Summary: This study examined the cyto-embryological characteristics of wild Kentucky bluegrass germplasm from Gannan and Longnan in Gansu Province. The research found no significant differences in pollen characteristics and viability between the two germplasm materials. The main apomixis observed was apospory, resulting in the coexistence of multiple embryo sacs, and polyembryonic seeds were frequently observed in Kentucky bluegrass.
Article
Plant Sciences
Jinqing Zhang, Huiling Ma
Summary: Investigating the natural apomixis mechanisms in Kentucky bluegrass can provide insights into plant reproduction, sexual reproduction variations, and adaptations to different environments. Through cytoembryological observation, endogenous hormone analysis, and global gene expression analysis, it was found that Kentucky bluegrass predominantly exhibited facultative apospory and the occurrence of apomixis was related to changes in gene expression associated with sexual reproduction.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Green & Sustainable Science & Technology
Daniel A. Potter, Carl T. Redmond, Timothy D. McNamara, Gregg C. Munshaw
Summary: The addition of white clover to lawns can help create a more sustainable environment and benefit insect pest resistance and pollinator resources. Studies have shown that dwarf clovers and DWC do not significantly impact insect communities, and can increase the foliar nitrogen content of tall fescue in mixtures.
Article
Plant Sciences
Yujuan Zhang, Wenke Dong, Chunxu Zhao, Huiling Ma
Summary: This study investigates the molecular mechanism underlying the response of Poa pratensis to powdery mildew infection. The results reveal the key metabolic pathways and differences in physiological characteristics and key genes related to sugar metabolism pathways under powdery mildew stress.
Article
Agronomy
Amanda J. Folck, Cale A. Bigelow, Yiwei Jiang, Aaron J. Patton
Summary: The germination rate, seedling vigor, and seed phenotype of Kentucky bluegrass cultivars were studied. It was found that the experimental genotype PST-T15-44 and the commercial cultivar After Midnight had the fastest germination, reaching 50% germination in only 7.9-8.0 or 8.8 days, respectively. Different cultivars showed variations in seed phenotype, including length, width, area, circularity, and thousand seed weights. Seed phenotyping could be useful for breeding for improved germination rate.
Article
Ecology
Edward J. Raynor, Heidi L. Hillhouse, Diane M. Debinski, James R. Miller, Walter H. Schacht
Summary: The study examined the impact of grazing pressure and time since fire on patch utilization and production in experimental grassland pastures dominated by the invasive grass tall fescue. It was found that recently burned patches showed greater initial patch-scale utilization, leading to reduced tall fescue production, especially under high grazing pressure. Although increased grazing promoted native grass production in the invaded grassland landscape, the dominance of tall fescue mediated the lack of structural heterogeneity induced by patch-level prescribed fire and grazing.
Article
Biochemistry & Molecular Biology
Mohammad A. Ghanbari, Hassan Salehi, Abolfazl Jowkar
Summary: This study analyzes the morphological characteristics and DNA content of Poa pratensis L. resources from different geographical regions in Iran, revealing the diversity of chromosomal numbers and sexual and apomictic reproduction in this plant. The findings are valuable for identifying and studying wild Kentucky bluegrass genotypes and understanding the plant's evolution in the context of Iran's climatic variety.
MOLECULAR BIOTECHNOLOGY
(2023)
Article
Mycology
Bitty A. Roy, Daniel C. Thomas, Hannah C. Soukup, Ian A. B. Peterson
Summary: The study found that the Mycena fungus is closely associated with Festuca roemeri tussocks and may be endophytic or biotrophic, not simply saprotrophic. This suggests that Mycena species are often found as endophytes in grass roots, warranting further research into this ecological association.
Article
Biochemistry & Molecular Biology
Mohammad A. Ghanbari, Hassan Salehi, Ali Moghadam
Summary: This research investigated the genetic diversity of Poa pratensis L. within and between ecoregions of Iran, and examined the impact of climatic variables and elevation on genotype distribution. Habitat suitability modeling was used to project potential ecoregions for this plant. The results showed significant genetic distance between genotypes from different ecoregions, with the highest levels of diversity and genetic diversity found in the Center accessions. Rainfall was identified as the most influential factor on the genotype distribution of P. pratensis L.
MOLECULAR BIOTECHNOLOGY
(2022)
Article
Ecology
Devan Allen McGranahan, Torre J. Hovick, R. Dwayne Elmore, David M. Engle, Samuel D. Fuhlendorf, Stephen L. Winter, James R. Miller, Diane M. Debinski
Article
Ecology
John Derek Scasta, Courtney Duchardt, David M. Engle, James R. Miller, Diane M. Debinski, Ryan N. Harr
ECOLOGICAL ENGINEERING
(2016)
Article
Ecology
Courtney J. Duchardt, James R. Miller, Diane M. Debinski, David M. Engle
RANGELAND ECOLOGY & MANAGEMENT
(2016)
Article
Biodiversity Conservation
Kimberly E. Szcodronski, Diane M. Debinski, Robert W. Klaver
JOURNAL OF INSECT CONSERVATION
(2018)
Article
Ecology
Victoria M. Pocius, Diane M. Debinski, John M. Pleasants, Keith G. Bidne, Richard L. Hellmich
Article
Ecology
Scott B. Maresh Nelson, Jaime J. Coon, Courtney J. Duchardt, James R. Miller, Diane M. Debinski, Walter H. Schacht
Article
Ecology
E. J. Raynor, C. D. Griffith, D. Twidwell, W. H. Schacht, C. L. Wonkka, C. P. Roberts, C. L. Bielski, D. M. Debinski, J. R. Miller
Article
Ecology
Jane F. Capozzelli, James R. Miller, Diane M. Debinski, Walter H. Schacht
Article
Entomology
D. S. Stein, D. M. Debinski, J. M. Pleasants, A. L. Toth
ENVIRONMENTAL ENTOMOLOGY
(2020)
Article
Ecology
Audrey L. McCombs, Diane Debinski, Keith Reinhardt, Matthew J. Germino, Petrutza Caragea
Summary: This study evaluated the nectar response of two native forbs to warming and found that it reduced nectar volume, increased sugar concentration, and increased the number of flowers produced. These findings suggest that warming can induce changes in nectar characteristics and impact the nectar-feeding community.
Article
Ecology
J. Simone Durney, Arden Engel, Diane M. Debinski, Laura A. Burkle
Summary: Climate change is altering species' response to environmental cues, potentially leading to phenological mismatches. This research shows that a combination of warming and earlier snowmelt can advance and extend flower blooming, providing more resources for pollinators. Short-term studies may underestimate the effects of climate change on plant phenology.
Article
Environmental Studies
Edward J. Raynor, Devan Allen McGranahan, James R. Miller, Diane M. Debinski, Walter H. Schacht, David M. Engle
Summary: Spatially patchy fire creates landscape-level diversity that stabilizes rangeland ecosystem services, but invasive species and grazing intensity can impact the effectiveness of fire regimes. A study in southern Iowa showed that moderate grazing intensity resulted in the least temporal variability in aboveground plant biomass and supported a portfolio effect among plant functional groups to stabilize communities. Beta diversity among plant functional groups was greatest during the moderate grazer density period, suggesting that diversity and stability were enhanced under moderate grazing.
Article
Ecology
Nicholas J. Lyon, Diane M. Debinski, Imtiaz Rangwala
FRONTIERS IN ECOLOGY AND EVOLUTION
(2019)
Article
Ecology
Victoria Marie Pocius, John M. Pleasants, Diane M. Debinski, Keith G. Bidne, Richard L. Hellmich, Steven P. Bradbury, Sue L. Blodgett
FRONTIERS IN ECOLOGY AND EVOLUTION
(2018)