Article
Biochemistry & Molecular Biology
Akifumi Azuma, Shozo Kobayashi
Summary: The difference in skin and flesh color between the black-skinned and red-fleshed grape varieties 'Brazil' and 'Benitaka' cannot be explained by genomic alteration at the VvMYBA loci. The decrease in DNA methylation levels in the 3’ LTR of the VvMYBA1BEN allele in 'Brazil' leads to increased expression levels of VvMYBA1 and anthocyanin accumulation in the skin and flesh. Additionally, the skin and flesh colors are inherited together and vary depending on the presence or absence of the VvMYBA1BEN allele.
Article
Agronomy
Gabriele Valentini, Chiara Pastore, Gianluca Allegro, Riccardo Mazzoleni, Fabio Chinnici, Ilaria Filippetti
Summary: This study evaluated the impact of water stress and climate change on European grapes, indicating that a combination of temperature and water stress could have significant effects on vine physiology and fruit ripening, particularly under moderate to severe stress. Canopy shape and irrigation regimes also influenced the growth and fruit quality.
Article
Horticulture
Hui Li, Yaxin Yang, Qianlan Wang, Haoran Li, Wu Wang, Huan Zheng, Jianmin Tao
Summary: In this study, a total of 146 VvABC genes were identified and characterized in grape berries, revealing their gene structure, chromosomal location, conserved domains, phylogenetic relationships, and collinearity analysis. The VvABC family was divided into eight subfamilies, and the ABCC subfamily was found to be closely related to genes involved in anthocyanin transport in other species. Analysis of the promoter elements and protein interactions of the VvABCC genes provided insights into their role in grape anthocyanin transport.
Article
Agronomy
Yunting Zhang, Shanlin Li, Xianjie Gu, Diya Lei, Bing Zhao, Honglan Tang, Yuanxiu Lin, Yan Wang, Mengyao Li, Qing Chen, Ya Luo, Xiaorong Wang, Haoru Tang, Yong Zhang
Summary: Red-skinned pear is a promising commercial fruit due to its attractive appearance and nutritious value, with anthocyanin being the determinant of its red coloration. Differences in anthocyanin accumulation exist among red pear cultivars with different genetic backgrounds, and the expression profiles of critical anthocyanin biosynthetic genes show a tendency towards decreased anthocyanin content during fruit development.
Article
Food Science & Technology
Jiovan Campbell, Ali Sarkhosh, Fariborz Habibi, Pranavkumar Gajjar, Ahmed Ismail, Violeta Tsolova, Islam El-Sharkawy
Summary: The study evaluated the biochemical juice attributes and color-related traits of 90 muscadine grape genotypes, showing modest diversity in biochemical properties and significant variation in color-related traits. The genotypes were mainly classified into colored and non-colored groups based on luminosity index and hue angle, with further sub-clustering based on chroma index, total anthocyanin content, and total soluble solids levels. Principal component analysis revealed a negative correlation between color characteristics (L* and C*) and total anthocyanin content, suggesting the influence of acidity in enhancing nutraceutical components.
Article
Biochemistry & Molecular Biology
Yongyan Zhang, Dingquan Huang, Bin Wang, Xuelian Yang, Huan Wu, Pengyan Qu, Li Yan, Tao Li, Chunzhen Cheng, Dongliang Qiu
Summary: In this study, fifteen candidate anthocyanin biosynthesis related MYB (ABRM) proteins were identified from highbush blueberry, including twelve R2R3-MYBs and three 1R-MYBs. The subcellular localization prediction results showed that most of the blueberry ABRMs were nucleus-localized, except for VcRVE8. The gene structure analysis revealed a wide range of exon numbers in the blueberry ABRM genes. The promoters of the blueberry ABRM genes contained various responsive elements related to light, phytohormones, abiotic stress, and plant growth and development. Additionally, the expression analysis showed that VcMYB, VcMYB6, VcMYB23, VcMYBL2, and VcPH4 were abundantly expressed in blueberry fruits, with VcMYB being the highest in red, purple, and blue fruits. The study provides valuable information for future research on anthocyanin biosynthesis related MYBs in blueberry.
CURRENT ISSUES IN MOLECULAR BIOLOGY
(2023)
Article
Plant Sciences
Mingtao Zhu, Jun Yu, Yanshuai Xu, Guoshun Yang
Summary: Girdling treatment can promote anthocyanin and soluble sugar accumulation in spine grape berries by regulating the transcription levels of related genes, thereby improving fruit quality.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Article
Biochemistry & Molecular Biology
Yongyan Zhang, Fan Liu, Bin Wang, Huan Wu, Junwei Wu, Jiapeng Liu, Yueting Sun, Chunzhen Cheng, Dongliang Qiu
Summary: This study identified six anthocyanin biosynthesis-related bHLHs in blueberry, which were nucleus-located and exhibited G-box binding protein characteristics. These proteins showed differential expression levels and patterns in different tissues, indicating certain spatiotemporal specificity in their regulatory functions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biotechnology & Applied Microbiology
Menglong Liu, Yichao Song, Hongyong Liu, Meiling Tang, Yuxin Yao, Heng Zhai, Zhen Gao, Yuanpeng Du
Summary: The cluster tip removal (CTR) thinning technique shows potential in improving grape growth environment, increasing phenolic compound content in berries, enhancing antioxidant activity, and promoting wine quality.
AMERICAN JOURNAL OF ENOLOGY AND VITICULTURE
(2021)
Article
Agriculture, Multidisciplinary
James R. Campbell, Will Thomas, Andrew L. Waterhouse, James A. Kennedy
Summary: This study investigates the impact of grape vine shading on flavonoids, and finds that shading alters berry pigmentation, tannin composition, and activity, potentially changing the astringency and mouthfeel characteristics of wine.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Horticulture
Xiaonan Dai, Qingyu Li, Fudong Jiang, Zhizhong Song, Xiaoli Tang, Shuqi Su, Ruotong Yao, Haiying Yang, Yanqing Yang, Hongxia Zhang, Jianzhao Li
Summary: This study clarified the mechanism of anthocyanin accumulation in "Red Bartlett" pear through transcriptome analysis, and identified the genes and transcription factors associated with anthocyanin biosynthesis and regulation.
SCIENTIA HORTICULTURAE
(2022)
Article
Horticulture
Choonseok Lee, Jihyun Lee, Jinwook Lee
Summary: The study compared the responses of fruit quality, anthocyanin content, and gene expression in 'Seolhyang' and 'Jukhyang' strawberry cultivars at different maturity stages and during postharvest shelf life. Fruit dimensions increased then decreased during shelf life, with 'Jukhyang' showing higher soluble solids content and titratable acidity. Different phenotypic responses were observed between the two cultivars in terms of fruit color, phenolic compounds, anthocyanins, and gene expression.
SCIENTIA HORTICULTURAE
(2022)
Article
Chemistry, Organic
Zhi Kai Guo, Yong Chao Wang, Ying Zi Tan, Ailiman Abulaizi, Zi Jun Xiong, Shi Qing Zhang, Yang Yang, La Ying Yang, Jing Shi
Summary: Chemical investigation of Streptomyces sp. NA07423 led to the discovery of two unreported macrolactams, nagimycins A(1) and B (2). Their structures were elucidated by NMR, HRESIMS, X-ray crystallography, and comparison of experimental and theoretical ECD spectra. The nagimycins have a unique butenolide moiety rarely found in ansamycin antibiotics. Genome analysis revealed the putative biosynthetic gene cluster for nagimycins, and a likely biosynthetic pathway was proposed. Notably, compounds 1 and 2 exhibited potent antibacterial activity against two pathogenic Xanthomonas bacteria.
Article
Biotechnology & Applied Microbiology
Haiyang Wang, Lulu Zhai, Shouwen Wang, Botian Zheng, Honglu Hu, Xuyan Li, Shaomin Bian
Summary: In this study, the roles of MYB family in blueberry in response to anthocyanin biosynthesis were explored. A total of 437 unique MYB sequences were identified and characterized in blueberry, and their transcriptional patterns during fruit development and fruit tissues related to anthocyanin biosynthesis were investigated. The results provide valuable insights into the functional roles of VcMYBs and their regulatory mechanisms for anthocyanin production and accumulation in blueberry.
Article
Plant Sciences
Yaolei Mi, Ruikun He, Huihua Wan, Xiangxiao Meng, Di Liu, Wenjun Huang, Yanjun Zhang, Zubaida Yousaf, Hongwen Huang, Shilin Chen, Ying Wang, Wei Sun
Summary: In this study, the anthocyanidins of eight different Epimedium species with different floral pigmentation phenotypes were analyzed. The expression levels of catalytic enzyme genes DFR and ANS were significantly decreased in four species showing loss of floral pigmentation. Complementation and overexpression experiments confirmed the functional role of these genes at the protein level.
FRONTIERS IN PLANT SCIENCE
(2023)