Open Access
ARTICLE
Flavia Angélica Pérez-Flores1, José Orlando Jiménez-Zurita2,*, Pedro Ulises Bautista-Rosales3,*, Rosendo Balois-Morales2, Graciela Guadalupe López-Guzmán2, Andrés Eloy León-Fernández4, Juan Esteban Bello-Lara4, Carlos Azhael Rodríguez-Guzmán4, Guillermo Berumen-Varela3
Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2026.077078
（This article belongs to the Special Issue: Advances in the Physiological, Biochemical and Molecular Mechanisms Regulating Fruit Ripening in Tropical Fruits)
Abstract The custard apple fruit (Annona reticulata L.) is distinguished not only by its pleasant flavor and high nutritional value, but also by the presence of bioactive compounds in its pulp, particularly antioxidants, which may provide health benefits when consumed. However, in Nayarit this plant material is found in the wild, without agronomic management or conservation programs. Therefore, the purpose of this research was to evaluate several antioxidants in the pulp of custard apple fruits. Fruits were collected from four localities in Tepic, Nayarit (Jicote, Trapichillo, 14 de Marzo, and Tepic). Total phenolics, flavonoids, vitamin C, carotenoids,… More >
Open Access
ARTICLE
Tingting Yuan1,#, Mutong Li1,#, Zhishun Yu1, Jiangyun Huang1, Qingqin Zhang1, Suqin Zhang1,2,*, Guangdong Geng1,*
Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2026.075984
（This article belongs to the Special Issue: Plant Responses to Abiotic Stress)
Abstract HVA22 is a gene induced by abscisic acid (ABA) and abiotic stress. Previous transcriptome data of salt-tolerant Tritipyrum “Y1805” revealed that HVA22 was significantly upregulated under salt stress. Gene TtHVA22 was successfully amplified from “Y1805”, with an open reading frame of 468 bp and encoding a protein of 156 amino acids. Gene TtHVA22 was transformed into bread wheat “1718” via coleoptile method. The relative expression level of TtHVA22 in roots was remarkably higher than in stems and leaves under salt stress. During the seedling stage, the TtHVA22 overexpression (OE) line exhibited less leaf wilting under salt stress than wild-type… More >
Open Access
ARTICLE
Fen Liu1,2, Cheng Qu1,3,*, Hongliang Yuan3, Xinpeng Xiang3, Yingbo Chen3, Yuxuan Cai3, Yue Wang4,*
Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2026.077734
（This article belongs to the Special Issue: Plant Responses to Abiotic Stress Mechanisms)
Abstract To explore the physiological mechanism of rice seeds’ tolerance to cold damage stress, the hybrid rice variety H-You 518 and the conventional rice variety Zhongjiazao 17 were used as experimental materials. A low-temperature cold damage treatment (4°C) and a normal germination treatment (25°C) were used to measure seed vitality, antioxidant enzyme activity, soluble sugar content, soluble protein content, α-amylase activity, endopeptidase, and related gene expression levels. The results showed that low temperature inhibited seed vitality and germination ability, and after restoring normal growth conditions, the activities of POD and CAT, as well as the content… More >
Open Access
ARTICLE
Bo Li*, Yuying Liang, Muqing He, Xiuhe Fan, Honghong Jiao
Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2026.076367
Abstract This study aims to clarify the codon usage bias and influencing factors of protein-coding genes in the chloroplast genome of the medicinal plant Corydalis yanhusuo. The chloroplast genome sequence of C. yanhusuo was obtained by resequencing, approximately 50 protein-coding genes were screened, and the nucleotide composition and codon usage patterns were calculated and analyzed using CodonW 1.4.2 and EMBOSS software. The results showed that the total guanine and cytosine (GC) content of codons in the chloroplast genome of C. yanhusuo was 40.06%, and the GC contents at the third, second, and first codon positions (GC3, GC2, and GC1) were 32.12%,… More >
Open Access
ARTICLE
Xiao Wang*, E Liang, Xiaohui Song, Deyan Li
Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2026.075656
（This article belongs to the Special Issue: Plant Responses and Adaptations to Environmental Stresses)
Abstract Three-year-old Panax japonicus was exposed to elevated CO2 concentrations using open-top chambers: ambient CO2 (aCO2), moderately elevated (e1CO2, 550 μmol/mol), and highly elevated (e2CO2, 750 μmol/mol). Gas exchange parameters, photosynthetic pigments, sugar accumulation, and total saponin content were measured to assess the effects of CO2 enrichment on photosynthesis, sugar metabolism, and saponin biosynthesis. The e1CO2 treatment significantly increased net photosynthetic rate (by 17.22% at 36 days and 69.62% at 92 days), chlorophyll a content, and soluble sugar, sucrose, and starch accumulation. Key sugar metabolism enzymes, including sucrose phosphate synthase (SPS), also showed enhanced activity. Consequently, underground rhizome total saponins rose More >
Open Access
REVIEW
Muhammad Nazim1,2,*, Abdul Ghafoor3,*, Abida Hussain4, Mehwish Tabassum5, Aamir Nawaz6, Muhammad Ahmad7, Murad Muhammad1,2, Muqarrab Ali4
Phyton-International Journal of Experimental Botany, DOI:10.32604/phyton.2024.058970
（This article belongs to the Special Issue: Soil Microbe-Plant Interactions: Unveiling Mechanisms of Biostimulants in Stress Tolerance)
Abstract In recent years, the world has faced rising global temperatures, accumulative pollution, and energy crises, stimulating scientists worldwide to strive for eco-friendly and cost-effective solutions. Biochar has materialized as a
favorable tool for environmental remediation, indicating efficacy as an efficient sorbent substance for both
inorganic and organic pollutants in environmental field. These unique properties exclude improved surface
functionality, porous morphology, large specific surface area (SSA), cation exchange capacity (CEC), robust
adsorption capabilities, environmental stability, and embedded micronutrients. Biochar exhibited potential
characteristics for environmental oversight, greenhouse gas (GHG) emission reduction, and soil fertility improvement. This review… More >
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