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  • Open Access

    RETRACTION

    Retraction: Physiological Responses of Pea Plants to Salinity and Gibberellic Acid

    Houneida Attia1,2,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.12, pp. 3371-3371, 2023, DOI:10.32604/phyton.2023.048187

    Abstract This article has no abstract. More >

  • Open Access

    ARTICLE

    Biochemical and Physiological Responses of Arabidopsis thaliana Leaves to Moderate Mechanical Stimulation

    Iva Šutevski1,#, Klara Krmpotić1,#, Sandra Vitko1, Nataša Bauer1, Eva Fancev2, Mario Cifrek2, Željka Vidaković-Cifrek1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.3, pp. 901-920, 2023, DOI:10.32604/phyton.2023.025165

    Abstract Mechanical stimulation of plants can be caused by various abiotic and biotic environmental factors. Apart from the negative consequences, it can also cause positive changes, such as acclimatization of plants to stress conditions. Therefore, it is necessary to study the physiological and biochemical mechanisms underlying the response of plants to mechanical stimulation. Our aim was to evaluate the response of model plant Arabidopsis thaliana to a moderate force of 5 N (newton) for 20 s, which could be compared with the pressure caused by animal movement and weather conditions such as heavy rain. Mechanically stimulated leaves… More >

  • Open Access

    ARTICLE

    Physiological Responses of Pea Plants to Salinity and Gibberellic Acid

    Houneida Attia1,2,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.1, pp. 149-164, 2023, DOI:10.32604/phyton.2022.022363

    Abstract Pea is a seed legume. It is rich in cellulose fibre and protein. It is also a significant source of minerals and vitamins. In this paper, we set out to better characterize the physiological responses of Pisum sativum L. to the combined effects of NaCl, 100 mM and gibberellins (GA3). Our analysis revealed that NaCl caused a decrease in growth resulting in a reduction in root elongation, distribution and density, leaf number and leaf area, and a decrease in dry matter of roots and shoots. However, the contribution of GA3 in the salty environment induced an… More >

  • Open Access

    ARTICLE

    Effects of Different Arbuscular Mycorrhizal Fungi on Physiology of Viola prionantha under Salt Stress

    Yajie Liu, Linlin Fang, Wenna Zhao, Chunxue Yang*

    Phyton-International Journal of Experimental Botany, Vol.92, No.1, pp. 55-69, 2023, DOI:10.32604/phyton.2022.022159

    Abstract Arbuscular mycorrhizal (AM) fungi distribute widely in natural habits and play a variety of ecological functions. In order to test the physiological response to salt stress mediated by different AM fungi, Viola prionantha was selected as the host, the dominant AM fungus in the rhizosphere of V. philippica growing in Songnen saline-alkali grassland, Rhizophagus irregularis, and their mixtures were used as inoculants, and NaCl stress was applied after the roots were colonized. The results showed that V. philippica could be colonized by AM fungi in the field and the colonization rate ranged from 73.33% to 96.67%, and Claroideoglomus etunicatum was… More >

  • Open Access

    ARTICLE

    Growth, ROS Markers, Antioxidant Enzymes, Osmotic Regulators and Metabolic Changes in Tartary Buckwheat Subjected to Short Drought

    Yan Wan1,#, Yuan Liang1,#, Xuxiao Gong1,#, Jianyong Ouyang1, Jingwei Huang2, Xiaoyong Wu1, Qi Wu1, Changying Liu1, Xueling Ye1, Xiaoning Cao3, Gang Zhao1, Liang Zou1,*, Dabing Xiang1,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.1, pp. 35-54, 2023, DOI:10.32604/phyton.2022.021698

    Abstract Tartary buckwheat (Fagopyrum tataricum) is an important pseudocereal feed crop with medicinal and nutritional value. Drought is one of the main causes of reduced growth and yield in these plants. We investigated the growth, physiological, and metabolic responses of the widely promoted Tartary buckwheat variety Chuan Qiao No. 1 to polyethylene glycol (PEG)-mediated drought stress. Drought significantly decreased shoot length, shoot biomass and relative water content. Root length, malondialdehyde content, electrolyte leakage, activities of superoxide dismutase, peroxidase, catalase and amylase, and contents of soluble sugar, soluble protein and proline were increased by PEG-mediated drought. Untargeted metabolomics… More >

  • Open Access

    ARTICLE

    Transcriptome Analysis and Physiological Responses of Economic Macroalga Gracilariopsis lemaneiformis under Sulfate Deficiency

    Haojie Jia1,2, Hong Du1,2,*, Muhmmad Aslam1,2, Tangcheng Li1,2, Canqi Zheng1,2, Xihui Xie1,2, Nan Huang1,2, Honghao Liang1,2, Pengbing Pei1,2, Ping Li1,2, Weizhou Chen1,2, Xiaojuan Liu1,2

    Phyton-International Journal of Experimental Botany, Vol.92, No.1, pp. 91-110, 2023, DOI:10.32604/phyton.2022.022663

    Abstract Sulfur is an essential macronutrient for the growth of all photosynthetic organisms and plays important roles in different metabolic pathways. However, sulfur metabolism and its related research on macroalgae with important ecological value is rather limited. In this study, marine ecological valued macroalga Gracilariopsis lemaneiformis was used to study the general physiological responses and transcriptome profiling under the sulfate deficiency. The relative growth rate of algae under sulfate deficiency was statistically significantly lower than that of control after 6 days. However, no significant differences were observed in the pigments content and Fv/Fm value, indicating that the… More >

  • Open Access

    ARTICLE

    Polysaccharide Elicitor from the Endophyte Bionectria sp. Fat6 Improves Growth of Tartary Buckwheat under Drought Stress

    Dabing Xiang1, Wei Wei1, Yan Wan1, Xiaoyong Wu1, Xueling Ye1, Lianxin Peng1, Linyun Zhong2, Qi Wu1, Liang Zou1, Gang Zhao1,*, Jianglin Zhao1,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.2, pp. 461-473, 2021, DOI:10.32604/phyton.2021.011724

    Abstract Drought can limit the growth and reduce the yield of crops, but the safe and effective bio-approach to improve the drought resistance of crops is very little. We conducted an experiment in which we monitored the effects of polysaccharide from the endophyte Bionectria sp. Fat6 on the growth of Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn) seedlings under control and drought-stressed conditions by determining gas exchange, photosynthesis parameters, photosynthetic pigment contents, and metabolite accumulation. Results indicated that the polysaccharide from endophyte stimulated plant growth and increased the aboveground biomass, root mass, and root/shoot ratio of Tartary buckwheat. Application… More >

  • Open Access

    ARTICLE

    Effects of Nano-Cerium Oxide on Seed Germination and Seedling Growth of Vitex negundo

    Zi Yang, Shixian Fan, Xuehan Wei, Zhiming Zhang, Xin Gui*, Yong Zhao*

    Phyton-International Journal of Experimental Botany, Vol.89, No.4, pp. 893-903, 2020, DOI:10.32604/phyton.2020.013644

    Abstract Cerium oxide nanoparticles (CeO2NPs) are likely to have dramatic impacts on plant performances, yet the effects of CeO2NPs on seed germination and seedling growth have not been fully explored. In this study, the seed germination and seedling growth of subshrub species Vitex negundo under different concentrations of CeO2NPs (low-1 mg/L, medium-100 mg/L, high-500 mg/L) have been discussed. Results showed that: (1) The seed germination rate reduces by 11.25% and 2.5% under the low and medium concentrations of CeO2NPs, respectively, but increased by 7.08% under the high concentration; (2) CeO2NPs had significant effects on the growth traits (root length, shoot… More >

  • Open Access

    ARTICLE

    Physiological Responses of Dendrobium officinale under Exposure to Cold Stress with Two Cultivars

    Shuaishuai Zhang1, Jin Li1, Yongchang Shen1, Linda Nartey Korkor1, Qian Pu1, Jin Lu1, Balock Shakeela1, Dedong Kong2, Ou Li1, Guohong Zeng1,*, Xiufang Hu1,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 599-617, 2020, DOI:10.32604/phyton.2020.010074

    Abstract This study aimed to explore the cold tolerance of two cultivars of Dendrobium officinale (MG1, MG2) grown in different regions of China. Under -2°C incubation, cultivar MG1 remained active after 3 d, and continued to grow after returning to room temperature. However, MG2 could only maintain its activity after 2 d treatment at −2°C, and the seedlings died with the low temperature treatment time. Investigation of the characteristics of the plants grown in the south (Hangzhou) or north (Zhengzhou) of China indicated that the leaves of MG1 also had reduced stomatal density, the highest thickness, and… More >

  • Open Access

    ARTICLE

    Physiological responses of Allium cepa var. agrogarum L. plants to Cadmium stress

    Wang QL, DH Liu, JY Yue

    Phyton-International Journal of Experimental Botany, Vol.85, pp. 270-282, 2016, DOI:10.32604/phyton.2016.85.270

    Abstract This study aimed to determine the effects of different Cd concentrations (0, 1, 10, 100, and 300 μM CdCl2) on Allium plantlets. To achieve this goal, we examined the (1) dynamics of Cd2+ flux in the rhizosphere, (2) partitioning of Cd between roots and leaves, (3) formation of reactive oxygen species (ROS), (4) levels of H2O2 and chlorophyll, and (5) translocation of several macro- and micronutrients. A strong net Cd2+ influx was observed in the root apex after exposure to 100 μM Cd for 24 h. Exposure to either 1 or 10 μM Cd for 96 h More >

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