Article
Food Science & Technology
Silvia Leticia Rivero Meza, Eric de Castro Tobaruela, Grazieli Benedetti Pascoal, Isabel Louro Massaretto, Eduardo Purgatto
Summary: The application of exogenous jasmonate can stimulate ethylene production and improve fruit quality, but over-ripening leads to fruit crop losses. However, using 1-methylcyclopropene can suppress fruit ripening. In this study, it was found that exogenous jasmonate had the most impact on lipid metabolism in tomatoes.
Article
Plant Sciences
Mengjie Fu, Fenfen Li, Shengen Zhou, Pengyu Guo, Yanan Chen, Qiaoli Xie, Guoping Chen, Zongli Hu
Summary: The transcription factor SlGT31 positively regulates fruit ripening by binding to the promoters of ethylene biosynthesis genes ACO1 and ACS4. This study provides insight into the involvement of trihelix proteins in fruit ripening and transcriptional regulation, highlighting the role of SlGT31 as a positive modulator.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Ruochen Wang, Kaidong Liu, Bei Tang, Dan Su, Xiaoqing He, Heng Deng, Mengbo Wu, Mondher Bouzayen, Don Grierson, Mingchun Liu
Summary: In this study, a ripening-associated gene, SlDQD/SDH2, was identified in tomato fruit and found to play a key role in shikimate and flavonoid metabolism. Overexpression of this gene increased the content of shikimate and flavonoids, while knockout of this gene resulted in a significant decrease in shikimate and flavonoid content. Furthermore, SlDQD/SDH2 was shown to confer resistance against Botrytis cinerea attack in post-harvest tomato fruit.
Article
Horticulture
Thaline M. Pimenta, Genaina A. Souza, Lubia S. Teixeira, Agustin Zsogon, Dimas M. Ribeiro
Summary: Elevated carbon dioxide concentration has the potential to modify tomato fruit size and ripeness. It increases fruit yield and mineral concentration, enhances fruit expansion rate and accelerates maturation by increasing ethylene and carotenoid concentrations.
SCIENTIA HORTICULTURAE
(2022)
Article
Plant Sciences
Frederico Rocha Rodrigues Alves, Filipe Christian Pikart, Ricardo Ernesto Bianchetti, Magdalena Rossi, Luciano Freschi
Summary: The practices of ripe and pre-ripe harvesting have significant effects on fruit quality. The synthesis and accumulation of health-promoting bioactive compounds in fleshy fruits are influenced by light quality and intensity. Phytochromes and their signaling networks play crucial roles in connecting light perception and the accumulation of antioxidants. In tomato, a mutation in PHYTOCHROME 2 (SlPhyB2) can confer light-independent activation. Overexpressing native SlPhyB2 or the constitutively active allele SlYHB2 in tomato fruits delays on-vine ripening and sustains high carotenoid and tocopherol synthesis even under dark conditions. These findings demonstrate the importance of adjusting PHY properties to minimize penalties in carotenoid and tocopherol accumulation in tomato fruits due to suboptimal harvesting and storage conditions.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Biochemistry & Molecular Biology
Charlotte Steelheart, Matias L. Alegre, Pierre Baldet, Christophe Rothan, Cecile Bres, Daniel Just, Yoshihiro Okabe, Hiroshi Ezura, Inti M. Ganganelli, Gustavo E. Gergoff Grozeff, Carlos G. Bartoli
Summary: This study investigated the role of H2O2 in tomato ripening and found that H2O2 participates in this process through its association with the ethylene signaling pathway. The experiments showed that high irradiance treatment enhanced H2O2 production and accelerated fruit ripening. These results may be attributed to changes in the expression of H2O2-related genes and ethylene-related genes.
Article
Biochemistry & Molecular Biology
Zhi-Kun Geng, Lin Ma, Yu-Lei Rong, Wan-Jie Li, Gai-Fang Yao, Hua Zhang, Kang-Di Hu
Summary: In this study, a tomato methionine synthase named SlMS1 was found to play a positive regulatory role in tomato fruit ripening. Further investigation showed that SlMS1 could up-regulate the expression of genes related to carotenoid synthesis, chlorophyll degradation, cell wall metabolism, and ethylene synthesis pathway, thereby promoting fruit ripening. These findings provide important insights into the molecular mechanism of tomato fruit ripening.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Green & Sustainable Science & Technology
Leander D. Melomey, Mathieu A. T. Ayenan, George Marechera, Pearl Abu, Agyemang Danquah, David Tarus, Eric Y. Danquah
Summary: Tomato production in Ghana is mainly conducted by male smallholder farmers. The major challenges faced include diseases, pests, and poor access to water for irrigation. Key criteria for farmer and market preferences include high yield, large fruit size, red color, time to maturity, and disease resistance.
Article
Plant Sciences
Kapil Sharma, Soni Gupta, Supriya Sarma, Meenakshi Rai, Yellamaraju Sreelakshmi, Rameshwar Sharma
Summary: This study reveals the role of ethylene in the development of tomato plants, not only in ripening but also in vegetative and reproductive processes. Mutants acs2-1 and acs2-2 exhibit contrasting ethylene emission levels and responses, impacting physiological and metabolic profiles of tomatoes.
Article
Agriculture, Multidisciplinary
Ki-Nam Yoon, Yeong-Seok Yoon, Hae-Jung Hong, Jong-Heum Park, Beom-Seok Song, Jong-Bang Eun, Jae-Kyung Kim
Summary: Tomato has a short shelf life, but gamma irradiation can effectively delay its ripening and extend its storage period, as shown in this study. Gamma irradiation reduced microbial growth and decay of tomatoes, while also affecting their color and lycopene content. The underlying mechanism involves the upregulation of genes related to DNA and chloroplast repairs, as well as the downregulation of genes associated with ripening and carotenoid production.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Plant Sciences
Kangqi Sang, Junjie Li, Xiangjie Qian, Jingquan Yu, Yanhong Zhou, Xiaojian Xia
Summary: Brassinosteroids play critical roles in fruit ripening, and ethylene signaling regulates BR synthesis and signaling through AP2a mediation.
Article
Plant Sciences
Martine Lemaire-Chamley, Claude Koutouan, Joana Jorly, Julien Assali, Takuya Yoshida, Marilise Nogueira, Takayuki Tohge, Carine Ferrand, Lazaro E. P. Peres, Erika Asamizu, Hiroshi Ezura, Paul D. Fraser, Mohammad-Reza Hajirezaei, Alisdair R. Fernie, Christophe Rothan
Summary: The bZIP transcription factor SlTGA2.2 plays an important role in the growth and maturation of tomato fruits. By targeting the expression of a chimeric repressor, the study found that the repressor affects fruit development and metabolism, prolongs the time to reach maturity, and slows down fruit ripening. This research provides a useful tool for studying the molecular bases of tomato fruit transition to ripening.
PLANT AND CELL PHYSIOLOGY
(2022)
Article
Plant Sciences
Vitor L. Nascimento, Auderlan M. Pereira, Aurelio S. Pereira, Victor F. Silva, Lucas C. Costa, Carla E. A. Bastos, Dimas M. Ribeiro, Camila Caldana, Ronan Sulpice, Adriano Nunes-Nesi, Agustin Zsogon, Wagner L. Araujo
Summary: The tomato mutant Never ripe (Nr) with a loss-of-function for the ethylene receptor SlETR3 shows enhanced growth and rewiring of central metabolism. It exhibits changes in carbon assimilation, carbohydrates turnover, and reprogramming of metabolite levels, impacting the whole central metabolism at vegetative stage and leading to increased growth rates.
PLANT CELL REPORTS
(2021)
Article
Plant Sciences
Jianwen Song, Lele Shang, Xin Wang, Yali Xing, Wei Xu, Yuyang Zhang, Taotao Wang, Hanxia Li, Junhong Zhang, Zhibiao Ye
Summary: This study identified a novel gene, MAPK11, which plays a critical role in seed germination of tomato by regulating ABA signaling and SnRKs phosphorylation. Understanding this mechanism provides a new perspective on seed germination and has implications for agricultural production efficiency.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Biochemistry & Molecular Biology
Qiaoli Xie, Yanling Tian, Zongli Hu, Lincheng Zhang, Boyan Tang, Yunshu Wang, Jing Li, Guoping Chen
Summary: This study investigated the proteome and phosphoproteome of tomato fruits using TMT and LC-MS, revealing the translation and post-translational regulation mechanisms of tomato fruit-ripening. The affected protein levels were found to be correlated with their corresponding gene transcript levels, and diverse metabolic pathways were regulated by phosphorylation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)