Article
Plant Sciences
Narendra Singh, Radha Mohan Sharma, Anil Kumar Dubey, Om Prakash Awasthi, Ron Porat, Supradip Saha, Chellapilla Bharadwaj, Amitha Mithra Sevanthi, Amrender Kumar, Nimisha Sharma, Nir Carmi
Summary: The study identified the optimum harvesting stage for citrus fruits and found that titratable acidity and ascorbic acid reached their peak levels in the early harvesting stage, then decreased over time; while total soluble solids, TSS/TA ratio, and BrimA values showed an increasing trend in most hybrids. Juice content increased initially, stabilized, and then decreased. BrimA was found to be a better predictor of consumer acceptability compared to traditional maturity indexes, indicating the importance of specific values in determining the optimum harvest stage for citrus genotypes.
Article
Horticulture
Wenling Zhang, Dan Liu, Xun Fu, Chunmei Xiong, Qingyu Nie
Summary: This study compares the differences in metabolites of orange and mandarin peels through metabolome analysis. The results show that both peels contain a large number of compounds, with terpenoids being the most accumulated class. Mandarin peels have higher compound diversity, while orange peels have lower compound content. Furthermore, the peel extracts of both fruits show antibacterial effects against various bacteria.
Article
Cell Biology
Barbara Tomasello, Giuseppe Antonio Malfa, Rosaria Acquaviva, Alfonsina La Mantia, Claudia Di Giacomo
Summary: This study investigated the photoprotective activity of a phytocomplex derived from red oranges on human skin cells. The extract showed strong antioxidant properties, protecting cells from oxidative stress and DNA damage caused by UVA-B exposure. It also downregulated proinflammatory markers and MMPs, promoting the remodeling of the extracellular matrix through collagen and elastin expression. The red orange extract represents a safe and effective option for preventing photoaging.
Article
Plant Sciences
Alissar Cheaib, Lamiaa M. Mahmoud, Christopher Vincent, Nabil Killiny, Manjul Dutt
Summary: This study investigates the impact of introducing Vitis vinifera mybA1 (VvmybA1) in 'Hamlin' sweet orange trees. Results show that the transgenic plants display intense purple color due to the accumulation of anthocyanins in leaf epidermal cells. Although there is a slight reduction in photosynthetic performance, other parameters remain unaffected.
Article
Agriculture, Multidisciplinary
Jin Chen, Yanru Zhang, Feifei Liu, Jianle Chen, Yujing Sun, Xingqian Ye, Donghong Liu, Huan Cheng
Summary: This study demonstrates that ultrasound treatment has positive effects on fruit quality and anthocyanin content, while pulsed light and magnetic energy treatments have negative effects.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Plant Sciences
Angelo Sicilia, Vittoria Catara, Emanuele Scialo, Angela Roberta Lo Piero
Summary: Fungal infection can induce the production of anthocyanins in sweet oranges by activating the expression of multiple genes in the biosynthetic pathway. High levels of methylation at the DFR and RUBY promoters are maintained in inoculated fruits under biotic stress, suggesting that DNA methylation is not a repressive mark of anthocyanin related gene expression. The expression levels of Citrus DNA demethylase genes are not up-regulated in response to fungal infection, consistent with the observed maintenance of high-level methylation at the DFR and Ruby promoter regions.
Article
Agronomy
Rosa Pires, Rui Guerra, Sandra P. Cruz, M. Dulce Antunes, Antonio Brazio, Andreia M. Afonso, Mariana Daniel, Thomas Panagopoulos, Isabel Goncalves, Ana M. Cavaco
Summary: This study aimed to assess the ripening of 'Ortanique' citrus using SW-NIRS technology, with calibration models for internal quality attributes showing better performance in internal validation than external validation. The models predicted pH, SSC, TA, and MI accurately internally, with TA and MI also showing good external validation results. Additional strategies were explored to improve model accuracy, resulting in clear improvements.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2022)
Article
Agriculture, Multidisciplinary
Maisa Lamounier Magalhaes, Raimundo Vicente de Sousa, Jose Rafael Miranda, Isaac Filipe Moreira Konig, Flademir Wouters, Fernanda Rezende Souza, Sergio Domingos Simao, Allan da Silva Lunguinho, David Lee Nelson, Maria das Gracas Cardoso
Summary: The study found that intake of Moro orange juice could improve metabolic abnormalities in rats, including reducing body weight and improving biochemical profile. However, the weight loss in diabetic animals and obese and diabetic animals was not due to juice intake, but to type I diabetes mellitus.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)
Article
Biochemistry & Molecular Biology
Xiuping Zou, Ke Zhao, Yunuo Liu, Meixia Du, Lin Zheng, Shuai Wang, Lanzhen Xu, Aihong Peng, Yongrui He, Qin Long, Shanchun Chen
Summary: The overexpression of CsSAMT1 gene enhances citrus fruits' resistance to the HLB pathogen Las by increasing the levels of SA and MeSA, inhibiting pathogen growth, and alleviating symptom expression. Additionally, overexpression of CsSAMT1 significantly boosts citrus plant defense responses by enhancing the transcription of disease resistance genes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Multidisciplinary Sciences
Dinesh Kumar, M. S. Ladaniya, Manju Gurjar, Sunil Kumar
Summary: This study aimed to quantify antioxidants, flavonoids, and phenols from citrus fruits using different drying techniques. The results showed that freeze drying preserved and extracted higher levels of bioactive compounds compared to hot-air oven drying. The study also found a significant correlation between antioxidant capacity, total phenols, and flavonoids.
SCIENTIFIC REPORTS
(2022)
Article
Food Science & Technology
Qi Lu, De Yang, Shujing Xue
Summary: Gamma irradiation effectively eliminates pathogenic microorganisms in citrus production. The study found that irradiated Cara Cara fruit showed increased respiration rate and higher decay rate during early shelf life, but lower decay rates with 0.3 and 0.6 kGy irradiation in later shelf life. Irradiation at 0.6 kGy reduced free sugar content and increased total phenolic content and antioxidant values, making it an appropriate radiation dose for maintaining the shelf-life quality of Cara Cara fruit.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Horticulture
Yuri Guerreiro Ramos, Izabela Moura Duin, Michele Regina Lopes da Silva, Rui Pereira Leite Junior
Summary: Resistance to citrus canker infection and development can be induced by treatments with chemical and biological products. This study showed that treatments with Bs and BioCu products were effective for controlling citrus canker in young citrus trees during orchard establishment, and BioCu product can enhance the systemic acquired resistance in plants.
SCIENTIA HORTICULTURAE
(2022)
Article
Plant Sciences
Paco Romero, Maria Teresa Lafuente, Fernando Alferez
Summary: Water stress is a crucial environmental factor affecting crop productivity and quality globally, with citrus trees being particularly impacted by water stress leading to fruit peel disorders. Non-chilling peel pitting (NCPP) is a common post-harvest peel disorder, with an increasing incidence due to abrupt increases in humidity. The study investigates the transcriptomic responses of mature citrus fruit to water stress using gene expression profiling and highlights the unique molecular features associated with NCPP, such as membrane disorganization and proteolysis.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Horticulture
Songwei Wu, Changming Zhang, Ming Li, Qiling Tan, Xuecheng Sun, Zhiyong Pan, Xiuxin Deng, Chengxiao Hu
Summary: This study demonstrates that an appropriate amount of potassium fertilizer can enhance the fruit quality of Cara Cara navel oranges by increasing the concentrations of sucrose, fructose, glucose, and citrate. Additionally, potassium fertilizer plays different roles in sucrose degradation and synthesis at different stages of fruit development, leading to increased citrate accumulation.
SCIENTIA HORTICULTURAE
(2021)
Article
Agricultural Engineering
Franciele Pereira Camargo, Isabel Kimiko Sakamoto, Iolanda Cristina Silveira Duarte, Edson Luiz Silva, Maria Bernadete Amancio Varesche
Summary: The study utilized citrus peel waste to produce H2, volatile fatty acids, and CH4, identifying bacteria and archaea involved in different stages of the reaction through high throughput sequencing. The results revealed cellulolytic enzymes producers like Escherichia and Clostridium in Stage I, as well as acetoclastic methanogenesis pathway potentially lead by Acetyl-CoA synthetase in Stage II.
BIOMASS & BIOENERGY
(2021)
