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  • Open Access

    REVIEW

    Molecular Mechanism Underlying Plant Response to Cold Stress

    Yiwei Cao, Delight Hwarari, Yasmina Radani, Yuanlin Guan, Liming Yang*

    Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2665-2683, 2023, DOI:10.32604/phyton.2023.024929

    Abstract Low temperature stress is one of the most important factors limiting plant growth and geographical distribution. In order to adapt to low temperature, plants have evolved strategies to acquire cold tolerance, known as, cold acclimation. Current molecular and genomic studies have reported that annual herbaceous and perennial woody plants share similar cold acclimation mechanisms. However, woody perennials also require extra resilience to survive cold winters. Thus, trees have acquired complex dynamic processes to control the development of dormancy and cold resistance, ensuring successful tolerance during the coldest winter season. In this review, we systemically described how woody plants perceive and… More >

  • Open Access

    REVIEW

    Breaking Barriers: Selenium and Silicon-Mediated Strategies for Mitigating Abiotic Stress in Plants

    Mojtaba Kordrostami1, Ali Akbar Ghasemi-Soloklui1, Mohammad Anwar Hossain2,*, Mohammad Golam Mostofa3,4,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2713-2736, 2023, DOI:10.32604/phyton.2023.030372

    Abstract Numerous plant species, particularly those that can accumulate selenium (Se) and silicon (Si), benefit from these essential micronutrients. Se and Si accumulation in plants profoundly affects several biochemical reactions in cells. Understanding how plants react to Se/Si enrichment is crucial for ensuring adequate dietary Se/Si intake for humans and animals and increasing plant tolerance to environmental stressors. Several studies have shown that Se/Si-enriched plants are more resistant to salinity, drought, extreme temperatures, UV radiation, and excess metalloids. The interplay between Se/Si in plants is crucial for maintaining growth and development under normal conditions while providing a critical defense mechanism against… More >

  • Open Access

    ARTICLE

    Evaluation of Beta-Lactam Antibiotics on the Regeneration of Peanut Plants and Their Inhibitory Effect on Agrobacterium Growth

    Abraham Lamboro1,3,*, Songnan Yang1, Xueying Li1, Dan Yao2, Jun Zhang1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2489-2501, 2023, DOI:10.32604/phyton.2023.029492

    Abstract The effect of beta-lactam antibiotics on shoot induction and plantlet regeneration from cotyledonary nodes was tested using two peanut cultivars. The culture media contained 4 mg/L 6-benzylaminopurine (BAP) as the main growth regulator. Various concentrations (100–600 mg/L) of cefotaxime, carbenicillin, and timentin were applied in the culture media. In all the tested media, there were no significant differences in the shoot induction as compared to the control. However, little phytotoxic effect was observed at higher concentrations of these antibiotics in the shoot elongation media. Under shoot elongation medium, shoots turned brownish and partly died at higher concentrations where shooting rates… More >

  • Open Access

    ARTICLE

    Retrieval of Winter Wheat Canopy Carotenoid Content with Ground- and Airborne-Based Hyperspectral Data

    Ting Cui, Xianfeng Zhou*, Yufeng Huang, Yanting Guo, Yunrui Lin, Leyi Song, Jingcheng Zhang

    Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2633-2648, 2023, DOI:10.32604/phyton.2023.029259

    Abstract Accurate assessment of canopy carotenoid content (CCx+cC) in crops is central to monitor physiological conditions in plants and vegetation stress, and consequently supporting agronomic decisions. However, due to the overlap of absorption peaks of carotenoid (Cx+c) and chlorophyll (Ca), accurate estimation of carotenoid using reflectance where carotenoid absorb is challenging. The objective of present study was to assess CCx+cC in winter wheat (Triticum aestivum L.) with ground- and aircraft-based hyperspectral measurements in the visible and near-infrared spectrum. In-situ hyperspectral reflectance were measured and airborne hyperspectral data were acquired during major growth stages of winter wheat in five consecutive field experiments.… More >

  • Open Access

    ARTICLE

    A Novel Hybrid Model Based on Machine and Deep Learning Techniques for the Classification of Microalgae

    Volkan Kaya1, İsmail Akgül1, Özge Zencir Tanır2,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2519-2534, 2023, DOI:10.32604/phyton.2023.029811

    Abstract Classification and monitoring of microalgae species in aquatic ecosystems are important for understanding population dynamics. However, manual classification of algae is a time-consuming method and requires a lot of effort with expertise due to the large number of families and genera in its classification. The recognition of microalgae species has become an increasingly important research area in image recognition in recent years. In this study, machine learning and deep learning methods were proposed to classify images of 12 different microalgae species in order to successfully classify algae cells. 8 Different novel models (MobileNetV3Small-Lr, MobileNetV3SmallRf, MobileNetV3Small-Xg, MobileNetV3Large-Lr, MobileNetV3Large-Rf, MobileNetV3Large-Xg, MobileNetV3Small-Improved and… More >

  • Open Access

    ARTICLE

    TCD5 Enhances the Photosynthesis Capacity, Increases the Panicle Number and the Yield in Rice

    Jing Yang1,2, Yufeng Wang2, Zhanghua Hu3, Xiaoping Chen4, Yanjun Dong5,*, Sheng Teng1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2649-2663, 2023, DOI:10.32604/phyton.2023.030710

    Abstract Improvement of photosynthetic efficiency is a major approach to increase crop yield potential. Previously, we cloned a gene encoding the chloroplast-located putative monooxygenase TCD5, which is essential in plastid development under low temperature in rice (Oryza sativa L.). In this study, the effects of TCD5 on the photosynthesis and the yields were investigated in rice. Two sets of genetic materials with three levels of TCD5 expression, including tcd5 mutant or TCD5 RNAi transgenic lines and TCD5 over-expression transgenic lines in Jiahua1 and Nipponbare backgrounds, were used in the field trails of multi-locations and multi-years. TCD5 positively affected the panicle number… More >

  • Open Access

    ARTICLE

    Transcriptome and Metabolome Revealed the Mechanism of NtBRL3 Overexpression Tobacco (Nicotiana tabacum L. K326) in Response to Drought Stress

    Jing Yang, Tianxiunan Pu, Ke Wan, Linqi Wang, Yuanshuai Shi, Xu Luo, Jie Tan, Dongmei Wang, Yang Liu*

    Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2555-2576, 2023, DOI:10.32604/phyton.2023.030301

    Abstract Drought has severely affected the yield and quality of commercial crops. The BRI1 family plays an important role in plant response to drought stress, and BRL3 gene plays an important role in the study of drought in Arabidopsis thaliana. In this study, NtBRL3 was constructed as a vector and genetically transformed to obtain ‘N. Tobacco K326’ overexpression of NtBRL3. The enzyme activities of transgenic tobacco and wild-type tobacco were measured and transcriptome and metabolome analyses were performed. The results showed that the antioxidant enzymes of transgenic tobacco were more active under drought conditions, and 85 significantly differentially metabolites and 106… More >

  • Open Access

    ARTICLE

    Comparative Transcriptome Analysis of Seed Germination of a Cotton Variety with High Tolerance to Low Temperature

    Genhai Hu1,*, Maoni Chao1, Xiuren Zhou2, Yuanzhi Fu2

    Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2535-2554, 2023, DOI:10.32604/phyton.2023.030163

    Abstract Gossypium hirsutum L. is an important cash crop native to the subtropics and is widely cultivated around the world. Low temperature is an important stress that seriously affects seed germination and emergence during planting. In this study, transcriptomic profiles of low-temperature- and normal-temperature-germinated seeds of Xinluzao 25, a variety with low-temperature tolerance and high germination rates, were analyzed and compared. The following results were obtained. (1) A total of 81.06 Gb of clean data were obtained after transcriptome sequencing and assembly, and 76,931 non-redundant Unigene sequences were obtained after data consolidation and concatenation; of these, 69,883 Unigene sequences were annotated.… More >

  • Open Access

    ARTICLE

    Genome-Wide Analysis of the F3′5′H Gene Family in Blueberry (Vaccinium corymbosum L.) Provides Insights into the Regulation of Anthocyanin Biosynthesis

    Xiaolan Guo1,2, Jinbin Hu3, Shimei Yang4, Delu Wang2,*, Jianbing Wang1

    Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2683-2697, 2023, DOI:10.32604/phyton.2023.029820

    Abstract The F3′5′H gene family plays an important role in regulating anthocyanin biosynthesis, abiotic stress, and hormone signaling. In this study, 14 F3′5′H genes were identified from the blueberry genome. The chromosomal distribution, physicochemical properties, F3′5′H domain, conserved motifs, cis-acting elements, and intron/exon compositions were analyzed. The functional prediction analysis of these VcF3′5′Hs indicated that their biological functions included light response and other secondary metabolites. The results of qRT-PCR showed that VcF3′5′Hs (especially VcF3′5′H4) were highly expressed at the ripening stage. Subcellular localization revealed that VcF3′5′H4 may be located in the endoplasmic reticulum. Co-expression analysis showed that the VcF3′5′H gene family… More >

  • Open Access

    ARTICLE

    Effects of Plant Extracts and Beauveria bassiana on the Activity of Defense-Related Enzymes in Solanum lycopersicum L. during Interaction with Fusarium oxysporum f. sp. lycopersici

    José Adrian Perez-Robles, Carlos Alberto Lecona-Guzmán*, Víctor Manuel Ruíz-Valdiviezo, Joaquín Adolfo Montes-Molina*

    Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2503-2518, 2023, DOI:10.32604/phyton.2023.029784

    Abstract The objective to this work was to evaluate the enzymatic activity in the culture of Solanum lycopersicum L. infected with Fusarium oxysporum after the combined application of Beauveria bassiana and plant extracts. Solanum lycopersicum plantlets were transplanted 15 days after the emergency. Five days after transplanting, Beauveria bassiana spores were applied at a concentration of 1 × 107 spores mL−1 onto soil (along with A. indica (N) and P. auritum (H) leaf extracts) where S. lycopersicum plants were planted. Eight days after transplanting, spores of F. oxysporum strain were applied at a concentration of 1 × 106 spores mL−1 to… More >

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