Article
Plant Sciences
Amnon Haberman, Arnon Dag, Ran Erel, Isaac Zipori, Nerya Shtern, Alon Ben-Gal, Uri Yermiyahu
Summary: Phosphorus fertilization significantly impacts olive tree reproductive development and fruit production, with deficiency leading to reduced soil P quantity and availability, and long-term impairment of fruit production. Routine P fertilization is necessary in intensive olive cultivation to prevent negative impacts on productivity.
Review
Plant Sciences
Rogerio Melloni, Elke J. B. N. Cardoso
Summary: International research has focused on studying the effects of different management practices in olive cultivation on soil. Both conventional techniques, such as using herbicides and machines to control weeds, inorganic fertilizers, and pesticides, and sustainable techniques, including pruning, the use of disease and climate-tolerant cultivars, organic conditioners, maintaining vegetation cover and using inoculants, have been examined. The impacts on soil quality, crop development, and production are evaluated by studying the presence, activity, and behavior of microorganisms in the soil or directly in the crop.
Article
Plant Sciences
Pablo Diaz-Rueda, Procopio Peinado-Torrubia, Francisco J. Duran-Gutierrez, Pilar Alcantara-Romano, Ana Aguado, Nieves Capote, Jose M. Colmenero-Flores
Summary: Identifying rootstocks with low susceptibility to Verticillium dahliae is crucial for effective control of Verticillium wilt in olive groves. Both resistance and tolerance mechanisms have been found in wild olive genotypes, but resistant rootstocks are more effective than tolerant rootstocks in reducing susceptibility to V. dahliae in grafted plants. The degree of susceptibility to Verticillium wilt in an olive variety does not predict its performance as a rootstock.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Franco Famiani, Nicola Cinosi, Andrea Paoletti, Daniela Farinelli, Adolfo Rosati, Enrico Maria Lodolini
Summary: The study conducted experiments on both intensive and super-high-density young olive trees and found that using 160 ppm of NAA treatment at full bloom can practically eliminate fruit set and production, while greatly increasing vegetative growth. The treatment also showed a progressive increase in trunk growth over two consecutive years, accelerating the growth of young olive trees.
Article
Agronomy
Joao Ilidio Lopes, Margarida Arrobas, Soraia Raimundo, Alexandre Goncalves, Catia Brito, Sandra Martins, Luis Pinto, Jose Moutinho-Pereira, Carlos M. Correia, Manuel Angelo Rodrigues
Summary: Soil conditioners and beneficial microorganisms are important for increasing the sustainability of agro-systems. This study found that biochar and zeolites increased the soil cation exchange capacity, which can benefit the system in the long-term. However, using commercial mycorrhizal fungi in a mature olive orchard showed little benefit.
Article
Agronomy
Pedro Valverde, Carlos Trapero, Octavio Arquero, Nicolas Serrano, Diego Barranco, Concepcion Munoz Diez, Francisco J. Lopez-Escudero
Summary: This study found that grafting susceptible olive cultivars onto resistant rootstocks can delay the onset of disease symptoms, but after 4 years, it was observed that all combinations containing the susceptible cultivar Picual were extensively colonized by V.dahliae and developed severe symptoms of the disease, with plant mortality similar to Picual growing on its own roots. The research highlights the importance of long-term field experiments for evaluating Verticillium wilt of olive (VWO) and suggests that grafting susceptible olive cultivars onto resistant rootstocks may not provide a durable control of VWO under high inoculum potential.
Article
Biochemistry & Molecular Biology
Sergio Cerezo, M. Luisa Hernandez, Elena Palomo-Rios, Naima Gouffi, Lourdes Garcia-Vico, M. Dolores Sicardo, Carlos Sanz, Jose A. Mercado, Fernando Pliego-Alfaro, Jose M. Martinez-Rivas
Summary: The investigation on the functional analysis of the olive 13-HPL gene through overexpression and silencing demonstrated its important role in the biosynthesis of olive volatile compounds, impacting the quality of virgin olive oil. The study revealed that altering the expression levels of 13-HPL gene resulted in significant changes in the volatile profile of the leaves, affecting plant growth and development.
Article
Geography, Physical
Andrea Miebach, Mitchell J. Power, Tim R. Resag, Timon Netzel, Daniele Colombaroli, Thomas Litt
Summary: This research examines the relationship between fire, vegetation, and early agricultural practices in the southern Levant region. By studying the Sea of Galilee, the researchers found that fire regimes changed with the expansion of olive cultivation, with an increase in fire frequency prior to and during the expansion. This was likely due to the anthropogenic use of fire for clearing the landscape and promoting fertile soils. Once olive orchards were established, low intensity, controlled burnings became common. The findings provide insights into the dynamic role of fire in early horticulture practices.
GLOBAL AND PLANETARY CHANGE
(2022)
Article
Plant Sciences
Li Wang, Jianguo Zhang, Dan Peng, Yang Tian, Dandan Zhao, Wanning Ni, Jinhua Long, Jinhua Li, Yanfei Zeng, Zhiqiang Wu, Yiyun Tang, Zhaoshan Wang
Summary: This study focuses on the high-quality genome of Olea europaea L. subsp. cuspidata in China, which has smaller fruit size, lower oil content, and higher resistance compared to other subspecies. A positively selected gene related to disease resistance and a pathogenic fungus causing leaf spot disease were identified.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Yi Wu, Fangbin Cao, Lupeng Xie, Feibo Wu, Shenlong Zhu, Chengwei Qiu
Summary: Aluminum toxicity is a major constraint to crop production in acidic soils. This study investigated the changes in miRNA expression in the roots of two olive genotypes with contrasting aluminum tolerance. A total of 352 miRNAs were discovered, and 11 miRNAs showed significantly different expression patterns between the tolerant and sensitive genotypes under aluminum stress. In silico prediction identified potential target genes involved in transcriptional regulation, hormone signaling, transportation, and metabolism. These findings provide new insights into the regulatory roles of miRNAs in enhancing aluminum tolerance in olives.
Review
Plant Sciences
Martina Cardoni, Jesus Mercado-Blanco
Summary: The holobiont concept has greatly advanced our understanding of plant-associated microbiomes and their importance for plant development, growth, and resilience. This comprehensive review consolidates the existing knowledge of stress factors affecting olive cultivation and the microbiota associated with olive tissues and organs. The review emphasizes the need for a holistic approach and the consideration of the holobiont conceptual framework in future research to enhance olive health and productivity.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agriculture, Multidisciplinary
M. Luisa Hernandez, Cristina Munoz-Ocana, Pilar Posada, M. Dolores Sicardo, Damaso Hornero-Mendez, Raquel B. Gomez-Coca, Angjelina Belaj, Wenceslao Moreda, Jose M. Martinez-Rivas
Summary: The study investigates the variability of squalene content in a collection of 36 olive cultivars and identifies two cultivars with extremely high and low squalene content. The researchers also clone cDNA sequences encoding squalene synthases from olive and determine the gene mainly involved in squalene biosynthesis. The study highlights the transcriptional regulation of squalene biosynthesis in water-stressed olive mesocarp.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Qingqing Liu, Chenhe Wang, Qizhen Cui, Yutong Fan, Jianguo Zhang, Guodong Rao
Summary: This study identified 18 OePPO genes in olive fruit and performed bioinformatic analysis on them. The research found a positive correlation between the browning degree of the fruit and PPO activity. Additionally, two key genes associated with fruit browning and metabolite synthesis were identified.
Article
Plant Sciences
Cibeles Contreras, Pierluigi Pierantozzi, Damian Maestri, Martin Tivani, Peter Searles, Magdalena Brizuela, Fabricio Fernandez, Alejandro Toro, Carlos Puertas, Eduardo R. Trentacoste, Juan Kiessling, Roberto Mariotti, Luciana Baldoni, Soraya Mousavi, Paula Fernandez, Sebastian Moschen, Mariela Torres
Summary: A major concern in olive cultivation outside of the Mediterranean region is the adaptation of introduced cultivars to different environmental conditions. This study evaluated the effects of thermal regime on fatty acid desaturase gene expression and unsaturated fatty acid contents in two olive cultivars (Arbequina and Coratina) across a latitudinal gradient in Argentina. The results showed that thermal regime influenced gene expression and fatty acid composition, with Arbequina being more sensitive to temperature than Coratina. These findings could guide future strategies for olive cultivation in diverse thermal environments and aid in evaluating olive varietal diversity.
Article
Plant Sciences
Aureliano Bombarely, Andreas G. Doulis, Katerina K. Lambrou, Christos Zioutis, Evi Margaritis, Georgios Koubouris
Summary: The study investigated the genetic relation of the ancient olive tree of Vouves in Crete with other olive cultivars, finding different genetic origins for samples from the bottom and top of the tree. The sample from the top showed relation to the modern Greek cultivar 'Mastoidis', while the bottom sample clustered with the 'Megaritiki' Greek cultivar. The study also identified an enrichment of genes associated with carbohydrate and amino acid metabolism in the tree's gene space, suggesting potential for domestication studies.
Review
Agriculture, Multidisciplinary
Cristian Silvestri, Loretta Bacchetta, Andrea Bellincontro, Valerio Cristofori
Summary: The main objective of the study is to systematize published information regarding recent findings about cultural operations that directly influence nut and kernel quality, support varietal choice for new plantations, and list recent advances in nut storage and quality and safety evaluation.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)
Article
Plant Sciences
Muhammad Ajmal Bashir, Cristian Silvestri, Eleonora Coppa, Elena Brunori, Valerio Cristofori, Eddo Rugini, Touqeer Ahmad, Ishfaq Ahmad Hafiz, Nadeem Akhtar Abbasi, Muhammad Kausar Nawaz Shah, Stefania Astolfi
Summary: Global warming can lead to drought and soil salinization in agriculture. Olive trees are considered moderately resistant to soil salinity compared to other fruit trees. The study shows that transgenic olive lines overexpressing osmotin gene cope better with salt stress by inducing sulfur metabolism, demonstrating the key role of the sulfur assimilation pathway in the adaptive response of olive plants under salt stress conditions.
Article
Plant Sciences
Muhammad Ajmal Bashir, Cristian Silvestri, Amelia Salimonti, Eddo Rugini, Valerio Cristofori, Samanta Zelasco
Summary: This study reports on the effects of ethylene inhibitors on somatic embryogenesis in olive. Silver nitrate showed the strongest stimulatory effect, significantly enhancing somatic embryogenesis.
Article
Agronomy
Aniello Luca Pica, Cristian Silvestri, Valerio Cristofori
Summary: In trial A, medium-late flowering cultivars 'Genco', 'Supernova' and 'Tuono' were found to be at moderate risk of cold damage, with the clonal rootstock 'GF677' leading to earlier flowering and higher yields per plant compared to peach seedling rootstocks. In trial B, the flowering of cultivar 'Guara' was affected by the rootstock, with 'Rootpac(R) 20' delaying full bloom by about one week compared to other rootstocks, while 'GF677' imparted more vigor to the cultivar.
Article
Agronomy
Agusti Romero-Aroca, Merce Rovira, Valerio Cristofori, Cristian Silvestri
Summary: This study aims to identify the relationships between industrial suitability and kernel size in hazelnuts, as well as to enhance the commercial value of hazelnuts through qualitative nut and kernel traits. The results show that some key hazelnut traits change significantly with kernel size.
Article
Agronomy
Riccardo Massantini, Valerio Cristofori, Maria Teresa Frangipane
Summary: This research studied different types of almond storage to maintain the quality and sensory attributes of almond kernels. The results showed that using a modified atmosphere of 100 kPa N-2 at +4 degrees C was the most suitable method for preserving the chemical, physical, and sensorial qualities of fresh almond kernels for nearly two weeks.
Article
Agronomy
Michela Lupo, Muhammad Ajmal Bashir, Cristian Silvestri, Elena Brunori, Aniello Luca Pica, Valerio Cristofori
Summary: This study investigates the possibility of using LED as the primary light source for micropropagation of Pyrus communis L. The results show that LED lamps have a significant impact on the growth and physiological traits of the plants, but they have a negative effect on chlorophyll and carotenoid contents. The study emphasizes the importance of light source selection in plant growth.
Article
Plant Sciences
Federico Marangelli, Vera Pavese, Giuseppe Vaia, Michela Lupo, Muhammad Ajmal Bashir, Valerio Cristofori, Cristian Silvestri
Summary: Polyploid induction is important for the development of new varieties in horticultural plants. In this study, a protocol for in vitro polyploid induction of highbush blueberry leaf tissues was studied. Different concentrations of colchicine and oryzalin were used, and it was found that colchicine can induce polyploidization. The resulting polyploids showed morphological differences compared to diploids.
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
Horticulture
Aniello Luca Pica, Cristian Silvestri, Valerio Cristofori
Summary: Mediterranean almond growing is increasing in Italy. The knowledge of eco-physiological behavior in new almond orchard areas is still poor. The study found a positive correlation between leaf nitrogen content and Nitrogen Balance Index, which can help develop environmentally friendly fertilization strategies.
Review
Biotechnology & Applied Microbiology
Zhi-Min Zhao, Zhi-Hua Liu, Tongtong Zhang, Rongqian Meng, Zhiqun Gong, Yibing Li, Jing Hu, Arthur J. Ragauskas, Bing-Zhi Li, Ying-Jin Yuan
Summary: Bioconversion of bioresources/wastes using Rhodococcus is a promising approach for producing lipid-derived bioproducts. However, bioconversion involves living cells and is a complex system that requires further understanding. This review highlights the potential of Rhodococcus for producing lipids from various wastes and presents genetic modifications using emerging tools for promoting bioconversion. Additionally, strategies for enhancing the bioaccessibility of lignin and its derived aromatics and synthesizing biodiesel and aviation fuels from lignin and lipids are discussed. The synergistic modification of microbial strains, substrates, and fermentation processes is proposed for sustainable biological lignin valorization.
BIOTECHNOLOGY ADVANCES
(2024)
Review
Biotechnology & Applied Microbiology
Maddy L. Newby, Joel D. Allen, Max Crispin
Summary: A key aspect of successful viral vaccine design is the elicitation of neutralizing antibodies targeting viral attachment and fusion glycoproteins. Glycosylation can influence the antigenicity and immunogenicity of vaccines, with native-like glycosylation potentially enhancing immunogenicity. Understanding viral glycosylation can guide the development of future vaccines in various enveloped viruses.
BIOTECHNOLOGY ADVANCES
(2024)
Review
Biotechnology & Applied Microbiology
Uganeeswary Suparmaniam, Man Kee Lam, Jun Wei Lim, Inn Shi Tan, Bridgid Lai Fui Chin, Siew Hoong Shuit, Steven Lim, Yean Ling Pang, Peck Loo Kiew
Summary: Microalgae have the ability to synthesize high-value phytochemicals, and subjecting them to abiotic stress can enhance the accumulation of valuable metabolites within their cells. This study explores the effects of manipulating abiotic stress on microalgae yields and discusses approaches to increase HVPCs production using abiotic stress.
BIOTECHNOLOGY ADVANCES
(2024)
Review
Biotechnology & Applied Microbiology
Pei Zhou, Cong Gao, Wei Song, Wanqing Wei, Jing Wu, Liming Liu, Xiulai Chen
Summary: The engineering status of protein is crucial for the efficient bioproduction in microbial cell factories. Strategies such as protein engineering, protein modification, and protein assembly can effectively modify the protein status and enhance production efficiency.
BIOTECHNOLOGY ADVANCES
(2024)
