Article
Plant Sciences
Golnaz Komaei Koma, Merve Sekerli, Jacob W. Snelling, Shawn A. Mehlenbacher
Summary: The commercial production of hazelnut in Oregon's Willamette Valley is threatened by eastern filbert blight (EFB), and genetic resistance is considered the most effective way to control the disease. New SSR markers and resistance sources on LG6 were developed and investigated in this study, providing potential for breeding new cultivars with stacked resistance genes. Further investigation is needed for some resistance sources where SSR marker scores were not correlated with disease response.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Jay W. Pscheidt, Stephanie Heckert
Summary: The study investigated the development of hazelnut kernel mold and found that the longer nuts remained on the ground, the higher the incidence of kernel mold. The initial incidence of kernel mold could serve as a good predictor for disease development, and there was no significant correlation between kernel mold incidence and rainfall totals.
Review
Horticulture
Merce Rovira
Summary: Research on hazelnut rootstocks is limited, but using non-suckering rootstocks can increase orchard cost-effectiveness by reducing pruning needs, facilitating mechanical harvesting, and lowering management costs and environmental impact. Trials in different countries have shown good performance of grafted hazelnuts, leading to increased interest in these cultivar/rootstock combinations and the expectation of more new orchards being planted in the near future.
Article
Agronomy
Orhan Karakaya, Mehmet Yaman, Fikri Balta, Muharrem Yilmaz, Mehmet Fikret Balta
Summary: Turkey is a significant center of origin for hazelnuts and various fruit species. This study examined the phenotypic variation and genetic diversity of hazelnut germplasm resources from the Eastern Black Sea Region in Turkey. The findings contribute to the conservation and preservation of hazelnut genetic resources and suggest potential materials for future hazelnut breeding efforts.
GENETIC RESOURCES AND CROP EVOLUTION
(2023)
Article
Chemistry, Applied
Ahmet Furkan Caglar, Ayse Gulden Goksu, Bilal Cakir, Ibrahim Gulseren
Summary: Cold press technology can produce high quality oil products and stable oilseed cakes, with hazelnut cakes being a potential source of antidiabetic peptides. By extracting and fractionating hazelnut peptides, it was found that some exhibited moderate DPP-IV inhibitory activity, suggesting their potential as antidiabetic agents.
Article
Biochemistry & Molecular Biology
Elanur Dastan, Omer F. Celik, Orhan Bas, Zafer Bulut, Stephen R. Lindemann, Mehmet I. Tugay, Muhammet Degermenci, Beyza Suvarikli-Alan, Mehmet Nizamlioglu, Yunus E. Tuncil
Summary: This study investigated the impact of hazelnut dietary fiber on colonic microbiota composition and short-chain fatty acids. The results showed that hazelnut dietary fiber increased the relative abundances of beneficial bacteria and stimulated the production of beneficial microbial metabolites. Additionally, hazelnut skin was found to have potential for producing functional dietary fiber targeting colonic health.
Article
Plant Sciences
Nihal Oztolan-Erol, Andrew J. Helmstetter, Asuman Inan, Richard J. A. Buggs, Stuart J. Lucas
Summary: European hazelnut (Corylus avellana) is extensively cultivated in Turkey for its nuts, with significant genetic variation among varieties. Clonal propagation of preferred varieties over the years in the Black Sea Region has resulted in mixed sub-populations and high genetic diversity within each variety, hindering the development of true breeding lines.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Plant Sciences
Alberto Pacchiarelli, Cristian Silvestri, Valerio Cristofori
Summary: European hazelnut, a shrub with high demand for its kernels in the confectionery industry, is affected by the competition from suckers, which negatively impacts its growth and yield. Several methods, including manual, mechanical, physical, and chemical control, as well as the use of non-suckering rootstocks and new automatized control techniques, have been proposed and discussed in this review.
Article
Plant Sciences
Maria Carola Fiore, Annalisa Marchese, Antonio Mauceri, Ignazio Digangi, Anna Scialabba
Summary: The characterization of plant genetic resources is crucial for genetic improvement and germplasm management. This study used molecular marker analysis to identify and evaluate the genetic diversity of Sicilian hazelnut accessions. The results showed distinct genetic differences between local and commercial varieties, as well as significant differences between Nebrodi genotypes and genotypes from other regions. The preservation of Nebrodi germplasm is important for its valuable traits in breeding.
Article
Food Science & Technology
Christina Lang, Nico Weber, Maya Moeller, Lisa Schramm, Stefanie Schelm, Oliver Kohlbacher, Markus Fischer
Summary: This study presents two targeted methods for differentiation and grouping different hazelnut cultivars based on polymorphic variations in the chloroplast genome, which show highly effective results for detecting blends of hazelnuts with a limit of detection of 5% and 10% admixture. Furthermore, Georgian hazelnut cultivars can be detected by restriction fragment length polymorphism analysis using one of the identified SNPs. Both methods can be used for differentiation and semi-quantitative estimation of mixtures of hazelnuts from different growing regions in the context of authenticity control and routine analysis.
Review
Agronomy
Rosario Nicoletti, Beata Zimowska
Summary: The results of extensive research conducted worldwide in recent decades have shown that endophytic fungi play a crucial role in enhancing plant fitness by promoting growth and acting as defensive mutualists. These properties have potential applications in crop production, especially for tree species like hazelnuts grown extensively in semi-natural environments throughout temperate zones. This paper reviews the available data on the occurrence, ecological roles, and biotechnological applications of endophytic fungi associated with hazelnuts, aiming to provide a reference for future investigations and projects aimed at harnessing the potential of this component of the plant microbiome.
PLANT PROTECTION SCIENCE
(2023)
Article
Agriculture, Multidisciplinary
Sandra Cabo, Alfredo Aires, Rosa Carvalho, Alice Vilela, Nuria Pascual-Seva, Ana Paula Silva, Berta Goncalves
Summary: The study in a commercial orchard in Portugal examined the effects of spraying kaolin, Ascophyllum nodosum, and salicylic acid on hazelnut quality and sensorial attributes, finding positive impacts on biometric parameters, vitamin E level, antioxidant activity, and various phenolics content. Hazelnut physical properties, chemical and phytochemical composition, and antioxidant activities were all positively correlated. The application of these substances improved hazelnut tree response to climate change, and could be cost-effective tools to mitigate summer stress in rain-fed orchards.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)
Article
Plant Sciences
Anita Solar, Aljaz Medic, Ana Slatnar, Maja Mikulic-Petkovsek, Roberto Botta, Merce Rovira, Jean-Paul Sarraquigne, Ana Paula Silva, Robert Veberic, Franci Stampar, Metka Hudina, Loretta Bacchetta
Summary: Different climatic conditions have an impact on the synthesis of phenolic compounds in hazelnuts, leading to variability in their content depending on the growing area. Flavanols are the major phenolic compounds found in hazelnut kernels, followed by hydroxybenzoic acids, flavonols, and dihydrochalcones. Higher natural irradiation and altitude contribute to higher levels of flavanols and flavonols, while higher annual rainfall is associated with lower levels of dihydrochalcones.
Article
Horticulture
Alane Paradinas, Leyla Ramade, Camille Mulot-Greffeuille, Rachid Hamidi, Maud Thomas, Julien Toillon
Summary: This study converted the alphanumerical codes of hazelnut growth stages to numerical codes using the BBCH scale and created a hazelnut BBCH scale for the 'Barcelona' cultivar. The scale provides detailed descriptions of hazelnut growth stages and can help producers better understand fruit ripening and potential harvest dates.
SCIENTIA HORTICULTURAE
(2022)
Review
Agronomy
Rosario Nicoletti, Beata Zimowska
Summary: Results of extensive research conducted worldwide have shown that endophytic fungi play a crucial role in enhancing plant fitness by promoting growth and acting as defensive mutualists. These properties have potential applications in crop production, particularly for tree species like hazelnut that are extensively cultivated in highland regions. This paper provides a review of the available data on the occurrence, ecological roles, and biotechnological applications of endophytic fungi associated with hazelnuts, aiming to support future investigations and projects focused on harnessing the potential of this component of the plant microbiome.
PLANT PROTECTION SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Gehendra Bhattarai, Wei Yang, Ainong Shi, Chunda Feng, Braham Dhillon, James C. Correll, Beiquan Mou
Summary: In this study, a genomewide association analysis approach was used to map the resistance loci of spinach against the Peronospora effusa race 16, leading to the identification of associated single nucleotide polymorphism (SNP) markers and candidate genes. The discovery of six significant SNPs and the mapping of the resistance locus to a specific region on chromosome 3 provide valuable insights into the genetic basis of downy mildew resistance in spinach. These results could potentially aid in the selection of resistant spinach lines in breeding programs.
Review
Plant Sciences
Ivan Simko, Mengyuan Jia, Jelli Venkatesh, Byoung-Cheorl Kang, Yiqun Weng, Gianni Barcaccia, Sergio Lanteri, Gehendra Bhattarai, Majid R. Foolad
Summary: Vegetables play a crucial role in human diet globally, with traditional breeding methods and modern genetic engineering technologies being extensively used to develop new cultivars with desired traits. Advances in genomics and marker-assisted improvement techniques for various vegetable crops are continually progressing and being applied effectively.
CRITICAL REVIEWS IN PLANT SCIENCES
(2021)
Article
Agronomy
Waltram Ravelombola, Lingdi Dong, T. Casey Barickman, Haizheng Xiong, Dotum Olaoye, Gehendra Bhattarai, Bazgha Zia, Huda Alshaya, Ibtisam Alatawi, Ainong Shi
Summary: In this study, 331 cowpea genotypes from over 32 countries were screened for salt tolerance, revealing significant variation in salt tolerance among the genotypes. Several salt-tolerant genotypes were identified, and correlations were found among traits such as leaf injury score, leaf SPAD chlorophyll, and fresh leaf biomass. This study provides valuable information for cowpea breeding programs and cultivation in saline soils.
Article
Biotechnology & Applied Microbiology
Waltram Ravelombola, Ainong Shi, Bao-Lam Huynh, Jun Qin, Haizheng Xiong, Aurora Manley, Lingdi Dong, Dotun Olaoye, Gehendra Bhattarai, Bazgha Zia, Huda Alshaya, Ibtisam Alatawi
Summary: This study evaluated salt tolerance in a cowpea population and identified SNP markers and candidate genes associated with salt tolerance. The results showed large variation in salt tolerance among cowpea lines and identified epistatic interactions. These findings have direct applications in breeding programs aiming to improve salt tolerance in cowpea through marker-assisted selection.
Correction
Multidisciplinary Sciences
Gehendra Bhattarai, Ainong Shi, Devi R. Kandel, Nora Solis-Gracia, Jorge Alberto da Silva, Carlos A. Avila
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Gehendra Bhattarai, Dotun Olaoye, Beiquan Mou, James C. Correll, Ainong Shi
Summary: This study aimed to map the downy mildew resistance locus in spinach and identify associated SNP markers and candidate genes using multiple genomic prediction methods. The results provide valuable resources and insights for breeding resistant spinach varieties.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Gehendra Bhattarai, Ainong Shi, Beiquan Mou, James C. Correll
Summary: This study evaluated the resistance of worldwide spinach germplasm collections and commercial cultivars to downy mildew pathogens and identified resistance-associated genomic regions and markers. The results suggest the suitability of genomic selection to improve field resistance to downy mildew, providing new information for spinach breeding to accumulate beneficial alleles for durable disease resistance.
HORTICULTURE RESEARCH
(2022)
Meeting Abstract
Horticulture
Gehendra Bhattarai, Ainong Shi, Beiquan Mou, James C. Correll
Meeting Abstract
Horticulture
Yilin Chen, Haizheng Xiong, Gehendra Bhattarai, Waltram Ravelombola, T. Casey Barickman, Ibtisam Alatawi, Theresa Makawa Phiri, Kenani Chiwina, Beiquan Mou, Ainong Shi
Meeting Abstract
Horticulture
Kenani Chiwina, Gehendra Bhattarai, Haizheng Xiong, Theresa Makawa Phiri, Yilin Chen, Ibtisam Alatawi, Burt Bluhm, Neelendra Joshi, Ryan Dickson, Ainong Shi
Meeting Abstract
Horticulture
Theresa Makawa Phiri, Gehendra Bhattarai, Ainong Shi, Yong-Bao Pan
Meeting Abstract
Horticulture
Haizheng Xiong, Ainong Shi, Yilin Chen, Waltram Ravelombola, Gehendra Bhattarai, T. Casey Barickman, Ibtisam Alatawi, Theresa Makawa Phiri, Kenani Chiwina, Beiquan Mou, Qun Luo
Meeting Abstract
Horticulture
Ibtisam Alatawi, Gehendra Bhattarai, Haizheng Xiong, Waltram Ravelombola, Theresa Makawa Phiri, Kenani Chiwina, Yilin Chen, Burt Bluhm, Neelendra Joshi, Dilip Panthee, Ainong Shi
Meeting Abstract
Horticulture
Ibtisam Alatawi, Gehendra Bhattarai, Haizheng Xiong, Theresa Makawa Phiri, Kenani Chiwina, Yilin Chen, Burt Bluhm, Neelendra Joshi, Dilip Panthee, Ainong Shi
Article
Plant Sciences
Ainong Shi, Gehendra Bhattarai, Haizheng Xiong, Carlos A. Avila, Chunda Feng, Bo Liu, Vijay Joshi, Larry Stein, Beiquan Mou, Lindsey J. du Toit, James C. Correll
Summary: This study identified 9 SNP markers associated with white rust resistance in spinach through genome-wide associating study and performed genomic prediction with high prediction accuracy of 0.84. These markers and the high prediction accuracy are valuable for improving spinach through marker-assisted selection and genomic selection.
HORTICULTURE RESEARCH
(2022)