Home / Advanced Search

  • Title/Keywords

  • Author/Affliations

  • Journal

  • Article Type

  • Start Year

  • End Year

Update SearchingClear
  • Articles
  • Online
Search Results (22,225)
  • Open Access

    ARTICLE

    Forecast of LSTM-XGBoost in Stock Price Based on Bayesian Optimization

    Tian Liwei1,2,*, Feng Li1, Sun Yu3, Guo Yuankai4

    Intelligent Automation & Soft Computing, Vol.29, No.3, pp. 855-868, 2021, DOI:10.32604/iasc.2021.016805

    Abstract The prediction of the “ups and downs” of stock market prices is one of the important undertakings of the financial market. Since accurate prediction helps foster considerable economic benefits, stock market prediction has attracted significant interest by both investors and researchers. Efforts into building an accurate, stable and effective model to predict stock prices’ movements have been proliferating at a fast pace, to meet such a challenge. Firstly, this paper uses a correlation analysis to analyze the attributes of a stock dataset, processing missing values, determining the data attributes to be retained data, then divide it in a training set… More >

  • Open Access

    ARTICLE

    Villin Family Members Associated with Multiple Stress Responses in Cotton

    Fenni Lv1,2,#, Sen Wang3,#, Ruiping Tian1, Peng Wang2, Kang Liu1,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1645-1660, 2021, DOI:10.32604/phyton.2021.016947

    Abstract Villin (VLN) is considered to be one of the most important actin-binding proteins, participates in modulating the actin cytoskeleton dynamics, plays essential role in plant development and resisting adverse environments. However, systematic studies of the VLN gene family have not been reported in cotton (Gossypium). In this study, 14 GhVLNs were identified in G. hirsutum. These GhVLN genes were distributed in 6 A-subgenome chromosomes and 6 D-subgenome chromosomes of the allotetraploid upland cotton and classified into three phylogenetical groups based on the classification model of AtVLNs. In addition, the 14 GhVLN genes have highly conserved gene structure and motif architecture.… More >

  • Open Access

    ARTICLE

    The Spatial-Temporal Heterogeneity of Understory Light Availability in a Temperate Forest of North China

    Jie Li1, Ziyu Zhou2, Yun Chen2, Qiusheng Yang1,*, Carlos Alberto Busso3,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1633-1644, 2021, DOI:10.32604/phyton.2021.016795

    Abstract The spatial-temporal variation of understory light availability has important influences on species diversity and community assembly. However, the distribution characteristics and influencing factors of understory light availability have not been fully elucidated, especially in temperate deciduous, broad-leaved forests. In this study, the understory light availability was monitored monthly (May–October) in a temperate deciduous, broad-leaved forest in Henan Province, China. Differences in the light availability among different months and habitat types were statistically analyzed using Kruskal–Wallis method, respectively. Partial least squares path modeling (PLS-PM) was used to explore the direct and/or indirect effects of stand structure, dominant species and topographic factors… More >

  • Open Access

    REVIEW

    Insights into the Roles of Melatonin in Alleviating Heavy Metal Toxicity in Crop Plants

    Ling Li*,#, Xuyu Yan#

    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1559-1572, 2021, DOI:10.32604/phyton.2021.016692

    Abstract Alleviating heavy metal pollution in farmland soil, and heavy metal toxicity in plants is the focus of global agricultural environmental research. Melatonin is a kind of indoleamine compound that wide exists in organisms; it is currently known as an endogenous free radical scavenger with the strongest antioxidant effect. As a new plant growth regulator and signaling molecule, melatonin plays an important role in plant resistance to biotic or abiotic stress. Recent studies indicate that melatonin can effectively alleviate heavy metal toxicity in crop plants, which provides a new strategy to minimize heavy metal pollution in crop plants. This study summarizes… More >

  • Open Access

    ARTICLE

    Potential Antidiabetic and Anti-Genotoxic Activities of Silver Nanoparticles of Alkaloid Extract of Rhazya stricta in Rat Animal Model

    Mohammed Ali Ashehri*

    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1749-1762, 2021, DOI:10.32604/phyton.2021.016290

    Abstract In most of Arabian courtiers Rhazya stricta is extensively utilized in public medicine for several diseases treatment. In this study, crude alkaloid extract of R. stricta (CAERS) coated with silver nanoparticles (CAERS-AgNPs) as potential treatment against diabetes in DM animal model was evaluated. Swiss albino male rats (n = 80) were injected with STZ to induce Diabetes Mellitus type-2 (DM). DM-rats were injected different doses of CAERS or CAERS-nanoparticles (CAERS-NPs) for 2 months. The results exhibited that mRNA expression of insulin and insulin receptor was down-regulated, activity levels of antioxidant enzymes were decreased, generation of ROS mediated DNA adducts and apoptosis in… More >

  • Open Access

    ARTICLE

    Selection and Analysis of Polymorphisms in Somaclonal Variants of Agave americana Resistant to Fusarium oxysporum via an Ethyl Methanesulphonate Treatment

    Sheila Jazmín Reyes-Zambrano1,*, Carlos Alberto Lecona-Guzmán1, Federico Antonio Gutiérrez-Miceli1, Víctor Manuel Ruiz-Valdiviezo1, Arely Anayansi Vargas-Díaz2

    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1727-1739, 2021, DOI:10.32604/phyton.2021.016171

    Abstract Agave americana L. callus were exposed to different concentrations of ethyl methanesulphonate (EMS) 0, 15, 30, 45 and 60 mM and to different times of exposure (2 and 4 h). The viability and capacity of shoot formation were shown to be affected when the callus were exposed to high concentrations (30–60 mM). Only the callus exposed to 15 mM EMS presented shoot formation; the exposure time of two hours produced the largest quantity of shoots regenerated per callus (21 shoots/callus). In order to generate somaclonal variants resistant to Fusarium oxysporum, a selection pressure was applied through of a culture filtrate… More >

  • Open Access

    ARTICLE

    Identification, Isolation and Characterization of GaCyPI Gene in Gossypium arboreum under Cotton Leaf Curl Virus Disease Stress

    Zunaira Sher1, Muhammad Umair Majid1, Sameera Hassan1, Fatima Batool1, Beenish Aftab1,2, Bushra Rashid1,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1613-1632, 2021, DOI:10.32604/phyton.2021.016154

    Abstract Pakistan is facing the threat of Cotton Leaf Curl Virus (CLCuV) which is transmitted through whitefly to cotton crop. Molecular mechanism of leaf epicuticular wax protects the plants from different pathogens including insect attack and disease transmission. Objective of current study is the isolation and characterization of a wax related gene GaCyPI from Gossypium arboreum under CLCuV infection. A fragment of 475 bp was isolated from the total RNA and 3’ and 5’ RACE-PCR products were arranged by overlapping the extended sequences at both the ends. Deduced protein sequence of GaCyPI showed homology with Cyclophilin cis-trans isomerase gene of Gossypium… More >

  • Open Access

    ARTICLE

    Encapsulation of Immature Somatic Embryos of Coffea arabica L. for in Vitro Preservation

    Eliana Arias-Pérez1, Carlos Alberto Lecona-Guzmán1, Federico Antonio Gutiérrez-Miceli1, Joaquín Adolfo Montes-Molina1, Nancy Ruiz-Lau1,2,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1741-1748, 2021, DOI:10.32604/phyton.2021.016004

    Abstract The present study aimed to develop a protocol for somatic embryogenesis and encapsulation of coffee embryos (Coffea arabica L.), for the conservation of genotypes with characteristics of commercial interest. Somatic embryos were induced from leaf explants in Murashige and Skoog medium (MS) supplemented with 1 mg · L−1 of 2,4-dichlorophenoxiacetic acid (2,4-D) combined with 2 mg · L−1 of benzyladenine (BA). Somatic embryos (SE) at the globular stage were encapsulated in a sodium alginate matrix; two treatments were tested: MS + 5 mg · L−1 BA + 1 mg · L−1 NAA + 3% (w/v) alginate, and MS + 7 mg · L−1 BA + 5.7 mg · L−1 indoleacetic acid (IAA) + 3% (w/v) alginate. Alginate was… More >

  • Open Access

    ARTICLE

    Effects of Piriformospora indica on the Respiration of Taxus chinensis var. mairei under Water Stress

    Longsheng Hu, Xinru He, Pujie Wei, Bing Sun, Yongjun Fei, Die Hu*

    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1661-1672, 2021, DOI:10.32604/phyton.2021.015871

    Abstract Seedlings of Taxus chinensis var. mairei were used as experimental materials to study the adaptation of Piriformospora indica to this plant under water stress. The materials were divided into two groups, namely, with or without inoculation with P. indica. Each group was subjected to four different levels of water stress. Vitality and physiological and biochemical indexes of the roots of T. chinensis var. mairei were regularly measured. Under water stress, T. chinensis var. mairei had significantly decreased root vitality; root vitality was higher in inoculated roots than in uninoculated roots. Under intense water stress, the inoculated roots had a higher… More >

  • Open Access

    ARTICLE

    Expression and Interaction Analysis of FAZ1 Protein in Brassica oleracea

    Hecui Zhang1,#, Xiaoping Lian2,#, Yizhong Zhang1, Tonghong Zuo1, Chongmo Yuan1, Qinqin Xie1, Liquan Zhu1,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.6, pp. 1599-1612, 2021, DOI:10.32604/phyton.2021.015852

    Abstract To identify and characterize genes involved in reproductive tissue abscission in Brassica oleracea, the transcript data of pollinated pistil was analyzed. A differentially expressed gene, named BoFAZ1(FLOWER ABSCISSION ZONE1) was identified, which contains one exon and encompass a 139aa. Furthermore, a T-DNA insertion mutant (SALK_302_G01) (faz1 mutant) was obtained from Arabidopsis thaliana mutant library. Floral organ shedding from mutants was delayed and a V-shaped structure in the boundary region between the stalk and torus of the sepal abscission zone was obtained in faz1 mutant. The cell density of this structure was lower than that of the corresponding region in the… More >

Displaying 11611-11620 on page 1162 of 22225. Per Page