Article
Genetics & Heredity
Mario Alejandro Mejia-Mendoza, Cristina Garciduenas-Pina, Blanca Estela Barrera-Figueroa, Jose Francisco Morales-Dominguez
Summary: This study constructed, sequenced, and analyzed miRNA libraries from guava fruit at different ripening stages, and identified several miRNA families associated with the ripening process. The predicted target genes of the miRNAs were mainly transcription factors and genes involved in phytohormone metabolism. The findings provide valuable information for further research on the ripening of guava fruit.
Article
Chemistry, Applied
Juan L. Monribot-Villanueva, Alma Altuzar-Molina, Martin Aluja, Jesus Alejandro Zamora-Briseno, Jose M. Elizalde-Contreras, Mirna V. Bautista-Valle, Jiovanny Arellano de los Santos, Daniela E. Sanchez-Martinez, Francisco J. Rivera-Resendiz, Mirna Vazquez-Rosas-Landa, Carolina Camacho-Vazquez, Jose A. Guerrero-Analco, Eliel Ruiz-May
Summary: The study identified the positive roles of ethylene and abscisic acid (ABA) signaling in regulating biochemical changes during guava ripening, and characterized the modulation of various metabolic pathways. It also highlighted the differential accumulation of growth regulators and discussed their potential implications in guava ripening. This integrative approach provided a global overview of metabolic pathway dynamics during guava ripening.
Review
Engineering, Chemical
Jorge E. Angulo-Lopez, Adriana C. Flores-Gallegos, Cristian Torres-Leon, Karen N. Ramirez-Guzman, Gloria A. Martinez, Cristobal N. Aguilar
Summary: Guava is a fruit native to the American tropics, with great economic importance worldwide due to its high production and diverse by-products. These by-products contain valuable components that can help prevent chronic and degenerative diseases.
Review
Plant Sciences
Edna Arevalo-Marin, Alejandro Casas, Leslie Landrum, Myrtle P. Shock, Hernan Alvarado-Sizzo, Eduardo Ruiz-Sanchez, Charles R. Clement
Summary: This study examines ecological, taxonomic, genetic, archeological, and historical evidence of guava to propose hypotheses regarding its evolutionary history and domestication process. The proposed hypotheses suggest the origin of guava ancestor during the Middle or Late Miocene, dispersal by megafauna and humans, and domestication possibly starting in the southwestern Amazonian lowlands during the Holocene. Future research directions are also outlined based on these proposals.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Food Science & Technology
Silin Fan, Tiantian Xiong, Qiumei Lei, Qinqin Tan, Jiahui Cai, Zunyang Song, Meiyan Yang, Weixin Chen, Xueping Li, Xiaoyang Zhu
Summary: Melatonin can effectively delay fruit softening and reduce the incidence of anthracnose on guava fruit. It enhances the antioxidant capacity, reduces oxidative damage, and improves enzymatic and non-enzymatic antioxidants. Melatonin also enhances defense-related enzymatic activities and represses lipase, lipoxygenase, and phospholipase D activities related to lipid metabolism.
Article
Agronomy
Adaniel Sousa dos Santos, Jonathan Candido Thomaz Dalzot, Gustavo Alves Pereira, Jenilton Gomes da Cunha, Thamyres Yara Lima Evangelista, Weverson Lima Fonseca, Murilo de Sousa Almeida, Julian Junior de Jesus Lacerda, Julio Ferreira de Souza Filho, Alan Mario Zuffo, Ricardo Mezzomo, Jorge Gonzalez Aguilera, Luis Morales-Aranibar, Mohammad K. Okla, Ibrahim A. Saleh, Hamada Abdelgawad
Summary: The influence of different intensities of fruit pruning and thinning on guava trees grown under a seasonal tropical climate in Currais, Piaui, Brazil was characterized in this study. The results showed that proper pruning and thinning can improve fruit quality and regulate ascorbic acid, sugar content, total soluble solids, and titratable acidity. Therefore, thinning of 20% is recommended to enhance fruit quality.
Article
Biochemistry & Molecular Biology
Ambreen Bano, Anmol Gupta, Smita Rai, Swati Sharma, Tarun Kumar Upadhyay, Lamya Ahmed Al-Keridis, Nawaf Alshammari, Neelam Pathak, Marcello Iriti, Mohd Saeed
Summary: This study aimed to determine the bioactive compounds, antioxidant activity, and antibacterial potential of Psidium guajava fruits at different ripening stages. The ripe fruits showed the highest content of phenolic, flavonoids, and carotenoids, as well as the highest antioxidant activity. Additionally, the ripe fruits exhibited the strongest antibacterial activity against MDR and food-borne pathogenic strains of Escherichia coli and Staphylococcus aureus. These fruit extracts could be recommended as a novel functional food and antibiotic alternative.
MOLECULAR BIOTECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Debashis Kumar Dutta Roy, Md. Asaduzzaman, Tanny Saha, Mst. Nazma Khatun
Summary: This study found that aloe vera coating can extend the shelf life of guavas and reduce weight loss and color changes during storage. 100% aloe vera coating was the most effective in protecting fresh guavas.
Article
Agronomy
Adaniel Sousa dos Santos, Gustavo Alves Pereira, Weverson Lima Fonseca, Alan Mario Zuffo, Jenilton Gomes da Cunha, Nemilda Pereira Soares, Estefenson Marques Morais, Antonio Afonso Sousa do Nascimento, Djavan Pinheiro Santos, Murilo de Sousa Almeida, Jorge Gonzalez Aguilera, Luis Morales-Aranibar, Eliseo Pumacallahui Salcedo, Richar Marlon Mollinedo Chura, Wilberth Caviedes Contreras, Roger Ccama Alejo
Summary: This study aimed to characterize the photosynthetic dynamics of guava plants influenced by different pruning and fruit thinning intensities. Through cluster analysis, the two pruning seasons were split into five different groups. The highest assimilation values were observed in the first pruning season and especially in plants that received short pruning with 0% fruit thinning, medium pruning with 10% and 20% fruit thinning, and long pruning with 10% fruit thinning. The highest means of ambient PAR, transpiration, leaf temperature, internal carbon, and ambient temperature were observed in the second pruning season and in plants that received short pruning with 10% and 20% fruit thinning, medium pruning with 0% and 20% fruit thinning, and long pruning with 0%, 10%, and 20% fruit thinning favors a higher photosynthetic accumulation in guava plants. We observed a multiplicity of responses; however, short pruning with 10% thinning should be considered for both seasons.
Article
Biotechnology & Applied Microbiology
Chen Feng, Chao Feng, Xinggu Lin, Shenghui Liu, Yingzhi Li, Ming Kang
Summary: Guava is a significant fleshy-fruited tree with a genome assembly size of 443.8 Mb, including 25601 genes and 193.2 Mb of repetitive sequences. Research indicates that guava has undergone a recent whole-genome duplication event and the L-galactose pathway plays a crucial role in ascorbic acid biosynthesis.
PLANT BIOTECHNOLOGY JOURNAL
(2021)
Article
Plant Sciences
Sukhjinder Singh Maan, Jaswinder Singh Brar, Amandeep Mittal, Manav Indra Singh Gill, Naresh Kumar Arora, Harjot Singh Sohi, Parveen Chhuneja, Guriqbal Singh Dhillon, Navdeep Singh, Sujata Thakur
Summary: This study aimed to construct a genetic linkage map in guava to identify genomic regions responsible for important fruit quality traits. The results showed that these traits can be improved through phenotypic selection methods and a genetic linkage map was successfully constructed, with 58 quantitative trait loci identified. These loci showed stable effects across multiple environments, indicating their potential utility in future breeding programs.
FRONTIERS IN PLANT SCIENCE
(2023)
Review
Biology
Bronwyn Lok, Dinesh Babu, Yasser Tabana, Saad Sabbar Dahham, Mowaffaq Adam Ahmed Adam, Khaled Barakat, Doblin Sandai
Summary: The guava tree has long been used in traditional medicine to treat various ailments. Recent studies have shown that it exhibits anticancer activity, making it a potential alternative or adjuvant treatment for human cancers. In vitro and in vivo studies have demonstrated that extracts from the guava plant selectively suppress the growth of human cancer cells without harming normal cells. The availability of the plant also makes it a viable option for cancer treatment in developing countries.
Article
Biochemistry & Molecular Biology
Jiwu Huang, Chuangjun Li, Jie Ma, Kailing Xu, Xinyi Chen, Jiandong Jiang, Dongming Zhang
Summary: Seven previously undescribed compounds were isolated and chirally separated from Psidium guajava leaves, showcasing diverse chemical structures and antibacterial activity. The discovery paves the way for potential future applications of P. guajava.
Review
Chemistry, Applied
Hongxin Liu, Shanshan Wei, Lili Shi, Haibo Tan
Summary: This review comprehensively summarizes the recent research advances of Psidium guajava L. polysaccharides (PGPs), including extraction and purification methods, structural features, biological activities, and potential pharmacological mechanism. PGPs exhibit various biofunctionalities such as anti-inflammatory, antidiarrheic, antihypertensive, and antidiabetic properties, making their further understanding crucial.
Article
Food Science & Technology
Kamrul Hasan, Rakibul Islam, Mehedi Hasan, Sazzat Hossain Sarker, Mehedi Hasan Biswas
Summary: This study investigated the influence of alginate edible coatings enriched with black cumin extract on the quality of guava fruits. It was found that these coatings could delay the ripening and decay of the fruits, enhance their antioxidant and antidiabetic activities, and increase the content of vitamin C, total phenolics, and total flavonoid. The results suggest that black cumin extract-based alginate coatings are an efficient way to improve the quality and prolong the shelf life of guava fruits.
FOOD AND BIOPROCESS TECHNOLOGY
(2022)
