Article
Plant Sciences
Muhammad Ahsan Altaf, Yuanyuan Hao, Chengyao He, Muhammad Ali Mumtaz, Huangying Shu, Huizhen Fu, Zhiwei Wang
Summary: Globally, heavy metal pollution of soil has remained a problem for food security and human health. This study characterized the toxicity symptoms of different concentrations of nickel (Ni) on pepper seedlings. The results showed that excess Ni reduced growth and biomass production, affected gas exchange elements and pigment molecules, and disrupted photosystem function. Higher Ni concentrations increased antioxidant enzyme activity and metabolites, but decreased nitrogen, potassium, and phosphorus levels. The uptake of Ni was higher in roots than shoots. Ni concentrations equal to or greater than 30 mg L-1 had a detrimental impact on pepper seedlings.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Monika Vidak, Boris Lazarevic, Marko Petek, Jerko Gunjaca, Zlatko Satovic, Ivica Budor, Klaudija Carovic-Stanko
Summary: The study investigated the effect of commercial calcite nanoparticles on sweet pepper fruits and found that it can reduce yield and increase fruit firmness, with different effects observed depending on the cultivar.
Article
Horticulture
Sijia Chen, Leo F. M. Marcelis, Ep Heuvelink
Summary: Fruit set is a critical process in plant development, especially for pepper crops which typically have low fruit set. The role of light spectrum in fruit set has not been well studied. This study investigated the effects of additional far-red light on fruit set of sweet pepper using narrow-band LED lighting.
SCIENTIA HORTICULTURAE
(2022)
Article
Agronomy
Junzheng Wang, Zixing Gao, Tao Sun, Wenxian Huang, Yuanjie Jia, Xiaojing Li, Zhi Zhang, Xiaohui Hu
Summary: Optimizing fertilization is crucial for maximizing vegetable yield and quality while minimizing environmental hazards. This study found that reducing fertilizer application by 20-40% before each harvest can increase nutrient accumulation, stabilize yield, and improve quality in greenhouse pepper cultivation.
Article
Horticulture
Yuxin Zheng, Qilong Ma, Lianzhen Mao, Zhuoxuan Wu, Zhoubin Liu, Xuexiao Zou, Bozhi Yang
Summary: This study analyzed the transcriptome of two pepper recombinant lines with different fruit weights, revealing differentially expressed genes and mechanisms controlling fruit weight. The findings showed that certain genes, such as Boron transporter 4 and genes in the Auxin signal transduction pathway, were highly expressed in the large-fruited pepper but reduced in the small-fruited pepper. Transcription factors, including CaMADS3, were also found to be highly differentially expressed in the large-fruited pepper. Weighted gene co-expression network analysis identified a module highly correlated with fruit weight. Overall, the study suggests that interactions between transcription factors and phytohormones may regulate the development of fruit size in peppers.
Article
Horticulture
Yan-Li Liu, Si-Yu Chen, Gui-Ting Liu, Xin-Yi Jia, Saeed ul Haq, Zhong-Jiao Deng, De-Xu Luo, Rui Li, Zhen-Hui Gong
Summary: This study investigated the role of the CaEXP4 gene in the cracking of pepper fruits. The results showed that fruit cracking was associated with changes in the levels of pectin, cellulose, lignin, and enzymatic activity. The analysis of differentially expressed genes during the fruit cracking process identified several pathways related to cell wall metabolism and lignin biosynthesis.
SCIENTIA HORTICULTURAE
(2022)
Article
Biochemistry & Molecular Biology
Yeonhwa Jo, Hoseong Choi, Jeong Hun Lee, Sang Hyun Moh, Won Kyong Cho
Summary: This study provides a comprehensive overview of viromes in 15 major pepper cultivars through RNA sequencing. Bean broad wilt virus 2 (BBWV2) and cucumber mosaic virus (CMV) were identified as the major viruses infecting pepper plants, with different cultivars showing variations in virus infection and symptoms.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Horticulture
Alexander Balamurugan, Aundy Kumar
Summary: A severe fruit rot symptom was observed on green bell pepper in the local vegetable market in New Delhi, India. The pathogen causing the fruit rot was identified as Alternaria alternata and was found to be able to infect tomatoes and eggplant as well. These findings are important for developing suitable strategies for fruit rot management and postharvest handling.
SCIENTIA HORTICULTURAE
(2023)
Article
Multidisciplinary Sciences
Muhammad Waqas, Dildar Ahmed, Muhammad Tariq Qamar
Summary: The study found that ethyl acetate was the best solvent for extracting capsaicin, and Tween-80 had a significant positive effect on the extraction efficiency of dichloromethane and acetone.
Article
Biochemistry & Molecular Biology
Muhammad Ali, Anthony Tumbeh Lamin-Samu, Izhar Muhammad, Mohamed Farghal, Abdul Mateen Khattak, Ibadullah Jan, Saeed ul Haq, Abid Khan, Zhen-Hui Gong, Gang Lu
Summary: Melatonin treatment can activate the chitinase gene CaChiIII2, enhancing plant resistance to pathogens and increasing antioxidant enzyme activity, thereby improving disease resistance.
Article
Plant Sciences
Evelia Fajardo-Rebollar, Karel Estrada, Ricardo Grande, Maria Julissa Ek Ramos, Gerardo Ruiz Vargas, Oscar Gabriel Villegas-Torres, A. M. Juarez, Alejandro Sanchez-Flores, Claudia Diaz-Camino
Summary: This study explored the microbiome of chilhuacle negro chili fruit, finding that the seedborne fungus Alternaria alternata is activated during fruit maturation, leading to an imbalance in the microbiome that may facilitate the establishment of opportunistic pathogenic fungi during fruit decay.
Article
Plant Sciences
Yelena Borovsky, Amit Raz, Adi Doron-Faigenboim, Hanita Zemach, Eldad Karavani, Ilan Paran
Summary: Fruit shape is a crucial quality trait in peppers, and a major QTL on chromosome 10, named fs10, controlling fruit shape has been identified. The candidate gene CaOFP20 has been found to function as a suppressor of fruit elongation in peppers, affecting cell expansion and replication.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Chemistry, Applied
Valentina Usenik
Summary: This study evaluated the influence of organic and integrated production systems on the composition of sugars, organic acids, and phenolics in 'Caeanska lepotica' and 'President' plums. The results showed a significant impact of cultivar and production system on fruit composition, with organic fruits having higher levels of certain components.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2021)
Article
Biochemistry & Molecular Biology
Yan Zhou, Muhammad Ali Mumtaz, Yonghao Zhang, Huangying Shu, Yuanyuan Hao, Xu Lu, Shanhan Cheng, Guopeng Zhu, Zhiwei Wang
Summary: This study identified key genes involved in anthocyanin synthesis through experiments with purple pepper fruit under different light conditions, providing a reference for further research on the regulatory mechanism of anthocyanin biosynthesis in peppers.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agriculture, Multidisciplinary
Dionis Borras, Mariola Plazas, Andrea Moglia, Sergio Lanteri
Summary: This study assessed the effect of acute water stress on the production and biochemical composition of sweet pepper fruits at different stages of plant development, finding that water stress at different stages can delay fruit ripening or reduce production, and impact the accumulation of bioactive compounds in fruits.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)