Article
Horticulture
Kunyong Huang, Yanrong Liu, Yalan Shi, Jinli Tian, Tianran Shi, Huiru Peng, Xuejun Tian, Wanjun Zhang, Kehua Wang
Summary: The study showed that overexpressing wheat MBF1c in perennial ryegrass improved thermotolerance, with lower leaf electrolyte leakage and lipid peroxidation, better water status, higher chlorophyll content, and net photosynthetic rate under high temperature conditions. This enhancement in stress tolerance was linked to the elevated antioxidative capacity of the transgenic perennial ryegrass, indicating that MBF1c offers a potential strategy for developing cool-season turfgrass and forage plants to cope with the challenges of global warming-induced higher temperatures and more frequent heat waves.
SCIENTIA HORTICULTURAE
(2022)
Article
Plant Sciences
Shuhan Lei, Bingru Huang
Summary: In this study, the effects of alpha-Ketoglutarate (AKG) on heat tolerance in a cool-season grass species were examined by foliar application. AKG enhanced heat tolerance by increasing leaf chlorophyll content, photochemical efficiency, membrane stability, and antioxidant enzyme activities. Metabolic profiling demonstrated that AKG enhanced metabolite accumulation in pathways related to antioxidant metabolism, amino acid metabolism, glycolysis and respiration, and pyrimidine metabolism, contributing to improved heat tolerance.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2022)
Article
Agronomy
Geli Taier, Nan Hang, Tianran Shi, Yanrong Liu, Wenxin Ye, Wanjun Zhang, Kehua Wang
Summary: The study reveals that miR408 plays a key role in plant heat tolerance by regulating the expression levels of target genes and enhancing the antioxidant capacity of plants, thereby enhancing the tolerance of perennial ryegrass to heat stress.
Article
Microbiology
Xiaoning Li, Chuncheng Zhao, Ting Zhang, Guangyang Wang, Erick Amombo, Yan Xie, Jinmin Fu
Summary: Aspergillus aculeatus can enhance drought and heat resistance in perennial ryegrass by promoting plant growth and adjusting physiological markers, including hormone balance, photosynthesis, and gene expression levels. The fungus also reduces antioxidase activities and membrane lipid peroxidation, indicating a protective role in perennial ryegrass response to drought and heat stresses.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Plant Sciences
Shuhan Lei, Stephanie Rossi, Bingru Huang
Summary: Aspartate is a critical amino acid in plant metabolic pathways and enhances plant resistance to abiotic stress. This study found that exogenous aspartate increased chlorophyll content and antioxidant enzyme activity, reduced oxidative damage, and enhanced heat tolerance in perennial ryegrass.
Article
Plant Sciences
Shabnam Safari, Farzad Nazari, Yavar Vafaee, Jaime A. Teixeira da Silva
Summary: The use of rice husk biochar (RHB) can improve soil properties and nutrient uptake, enhancing the growth and drought tolerance of perennial ryegrass.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Plant Sciences
Gang Nie, Jie Zhou, Yiwei Jiang, Jie He, Yang Wang, Zongchao Liao, Charlotte Appiah, Dandan Li, Guangyan Feng, Linkai Huang, Xia Wang, Xinquan Zhang
Summary: This study investigated the transcriptomic mechanisms underlying heat tolerance mediated by exogenous MeJA in perennial ryegrass. The results showed that exogenous MeJA improved the heat tolerance by mediating the expression of genes involved in different pathways, such as chlorophyll biosynthesis and degradation, antioxidant enzyme system, HSF-HSP network, and JAs biosynthesis.
Article
Agriculture, Multidisciplinary
Gustavo Togeirode Alckmin, Arko Lucieer, Richard Rawnsley, Lammert Kooistra
Summary: Frequent biomass measurement is important for optimal perennial ryegrass management in dairy operations. Development of accurate and automated technological solutions for biomass assessment is vital. UAVs with multispectral cameras can help deploy machine learning algorithms for real-time biomass mapping, but radiometric calibration and generalization of models need improvement.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2022)
Article
Plant Sciences
Daniel Grogg, Marius Rohner, Steven Yates, Chloe Manzanares, Simon E. Bull, Sue Dalton, Maurice Bosch, Bruno Studer, Giovanni A. L. Broggini
Summary: This study reported the induction of callus from various genotypes and explants of perennial ryegrass, and achieved gene silencing and gene knockout through plasmid transformation. This research is of great significance for expanding the range of transformable genotypes and improving forage and turf grass crops.
Article
Agriculture, Multidisciplinary
Shona Baker, Mary B. Lynch, Fionnuala Godwin, Tommy M. Boland, Alan K. Kelly, Alexander C. O. Evans, Paul N. C. Murphy, Helen Sheridan
Summary: Reducing dependence on fertiliser Nitrogen (N) is crucial for improving the sustainability of pasture-based agricultural systems. This study investigates the impact of different sward types on annual and seasonal herbage dry-matter (DM) production potential and the contribution of sown and unsown species in an intensive dairy-calf to beef system. The results show that a multispecies sward with reduced N application produces more herbage DM compared to monocultures and mixed swards, without increasing the weed burden.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Agronomy
Leonard Bonilha Piveta, Nilda Roma-Burgos, Jose Alberto Noldin, Vivian Ebeling Viana, Claudia de Oliveira, Fabiane Pinto Lamego, Luis Antonio de Avila
Summary: Rice, the staple food for many people worldwide, is affected by climatic changes impacting its yield and quality. Weedy rice, with high genetic diversity, is crucial for rice crop improvement. This study analyzed the physiological and molecular profiles of rice cultivars and weedy rice under heat and drought stress, revealing genotype-specific responses to stress conditions. Research suggests that certain genotypes perform well under stress conditions and can be used as a source of genetic diversity for rice breeding.
Article
Multidisciplinary Sciences
Wagdi S. Soliman, Ahmed M. Abbas, Stephen J. Novak, Masahiro Fujimori, Kazuhiro Tase, Shu-ichi Sugiyama
Summary: The study identified considerable additive genetic variation for heat tolerance among the 72 progeny arrays generated from crosses in perennial ryegrass, highlighting the potential for using such diversity to improve heat tolerance in plant cultivars. Furthermore, combining physiological measurements within a genetic framework was found beneficial in assessing the inheritance of heat tolerance, a complex plant response.
Article
Plant Sciences
Rowan Herridge, Samarth, Lynette Brownfield, Richard Macknight
Summary: The flowering of perennial ryegrass is crucial for both farmers and seed producers, as it affects metabolizable energy content and seed yield. Gene studies on flowering time regulation can provide insights into the growth and flowering processes of ryegrass.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biotechnology & Applied Microbiology
Istvan Nagy, Elisabeth Veeckman, Chang Liu, Michiel Van Bel, Klaas Vandepoele, Christian Sig Jensen, Tom Ruttink, Torben Asp
Summary: In this study, a chromosome-scale genome sequence assembly of perennial ryegrass was reported, which will serve as valuable resources for evolutionary and comparative genomics as well as breeding applications.
Review
Agronomy
Mary-Jane Rogers, Alister Lawson, Christie Ho, Kevin Kelly, William Wales, Joseph Jacobs
Summary: This review summarizes research on perennial ryegrass in the dairy region of northern Victoria, Australia over the past decade. The study reveals that the performance of perennial ryegrass is poor in the hot, dry summers due to high temperatures and limited water availability. As extreme heat events and low water availability are increasing in this region, the dairy industry is focusing on finding new farming systems and alternative species that can adapt to the changing climate conditions.
GRASS AND FORAGE SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Jianli Lu, Leichen Zhang, Ramsey S. Lewis, Lucien Bovet, Simon Goepfert, Anne M. Jack, James D. Crutchfield, Huihua Ji, Ralph E. Dewey
PLANT BIOTECHNOLOGY JOURNAL
(2016)
Article
Biotechnology & Applied Microbiology
Kurtis L. Dluge, Zhongbang Song, Bingwu Wang, W. Tyler Steede, Bingguang Xiao, Yong Liu, Ralph E. Dewey
Article
Biochemistry & Molecular Biology
Bin Cai, Balazs Siminszky, Joseph Chappell, Ralph E. Dewey, Lowell P. Bush
JOURNAL OF BIOLOGICAL CHEMISTRY
(2012)
Article
Biochemistry & Molecular Biology
Bin Cai, Anne M. Jack, Ramsey S. Lewis, Ralph E. Dewey, Lowell P. Bush
Review
Biochemistry & Molecular Biology
Ralph E. Dewey, Jiahua Xie
Article
Biotechnology & Applied Microbiology
Minesh Patel, Susana Milla-Lewis, Wanjun Zhang, Kerry Templeton, William C. Reynolds, Kim Richardson, Margaret Biswas, Maria C. Zuleta, Ralph E. Dewey, Rongda Qu, Puthigae Sathish
PLANT BIOTECHNOLOGY JOURNAL
(2015)
Article
Biochemistry & Molecular Biology
Wan-Jun Zhang, Ralph E. Dewey, Wendy Boss, Brian Q. Phillippy, Rongda Qu
PLANT MOLECULAR BIOLOGY
(2013)
Article
Multidisciplinary Sciences
Ramsey S. Lewis, Harry O. Lopez, Steve W. Bowen, Karen R. Andres, William T. Steede, Ralph E. Dewey
Article
Agronomy
Andrea J. Cardinal, Rebecca Whetten, Sanbao Wang, Jerome Auclair, David Hyten, Perry Cregan, Eleni Bachlava, Jason Gillman, Martha Ramirez, Ralph Dewey, Greg Upchurch, Lilian Miranda, Joseph W. Burton
THEORETICAL AND APPLIED GENETICS
(2014)
Article
Multidisciplinary Sciences
Qian Wu, Christophe La Hovary, Han-Yi Chen, Xu Li, Hayde Eng, Veronica Vallejo, Rongda Qu, Ralph E. Dewey
SCIENTIFIC REPORTS
(2020)
Article
Plant Sciences
Ramsey S. Lewis, Katherine E. Drake-Stowe, Crystal Heim, Tyler Steede, William Smith, Ralph E. Dewey
FRONTIERS IN PLANT SCIENCE
(2020)
Article
Multidisciplinary Sciences
Jianli Lu, Niharika N. Chandrakanth, Ramsey S. Lewis, Karen Andres, Lucien Bovet, Simon Goepfert, Ralph E. Dewey
Summary: Pyridine alkaloids in tobacco can react with nitrosating agents to form tobacco-specific nitrosamines, toxicants found in tobacco smoke. Expressing a constitutively activated nitrate reductase enzyme in tobacco can decrease nitrate levels and reduce TSNA without changing the alkaloid profile. Crossbreeding these modified tobacco plants with late-flowering burley cultivars can restore biomass levels and maintain low nitrate/TSNA traits, with different mechanisms observed in different crossbreeds.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Lucien Bovet, Prisca Campanoni, Jian Lu, Aurore Hilfiker, Samuel Kleinhans, Helene Laparra, Joanne Schwaar, Ramsey S. Lewis, Yuki Matsuba, Hong Ma, Ralph E. Dewey, Simon Goepfert
Summary: This study found that suppressing expression or knocking-out the CLCNt2 gene can directly impact the reduction of leaf nitrate and TSNAs, without altering biomass. This provides a possibility for breeding new commercial tobacco varieties with reduced TSNA levels.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biology
William A. Smith, Yuki Matsuba, Ralph E. Dewey
Summary: The study demonstrates that knocking out the QPT2 gene in tobacco can lead to low alkaloid plant production, but transplanting these plants to field environments severely inhibits growth and development.
BMC RESEARCH NOTES
(2022)