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  • Open Access


    Identification and Characterization of ZF-HD Genes in Response to Abscisic Acid and Abiotic Stresses in Maize

    Xiaojie Jing1,2,3,#, Chunyan Li1,2,3,#, Chengjuan Luo1,2,3, Chaonan Yao1,2,3, Jiahao Zhang1,2,3, Tingting Zhu1,2,3, Jiuguang Wang1,2,3, Chaoxian Liu1,2,3,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.3, pp. 707-723, 2023, DOI:10.32604/phyton.2023.024338

    Abstract The zinc finger homeodomain (ZF-HD) genes belong to the homeobox gene family, playing critical roles in flower development and stress response. Despite their importance, however, to date there has been no genome-wide identification and characterization of the ZF-HD genes that are probably involved in stress responses in maize. In this study, 24 ZF-HD genes were identified, and their chromosomal locations, protein properties, duplication patterns, structures, conserved motifs and expression patterns were investigated. The results revealed that the ZF-HD genes are unevenly distributed on nine chromosomes and that most of these genes lack introns. Six and… More >

  • Open Access


    Distribution, Etiology, Molecular Genetics and Management Perspectives of Northern Corn Leaf Blight of Maize (Zea mays L.)

    M. Ashraf Ahangar1, Shabir Hussain Wani1,*, Zahoor A. Dar2, Jan Roohi1, Fayaz Mohiddin1, Monika Bansal3, Mukesh Choudhary4, Sumit K. Aggarwal4, S. A. Waza1, Khursheed Ahmad Dar5, Ayman El Sabagh6,7, Celaleddin Barutcular8, Omer Konuşkan9, Mohammad Anwar Hossain10,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.10, pp. 2111-2133, 2022, DOI:10.32604/phyton.2022.020721

    Abstract Maize is cultivated extensively throughout the world and has the highest production among cereals. However, Northern corn leaf blight (NCLB) disease caused by Exherohilum turcicum, is the most devastating limiting factor of maize production. The disease causes immense losses to corn yield if it develops prior or during the tasseling and silking stages of crop development. It has a worldwide distribution and its development is favoured by cool to moderate temperatures with high relative humidity. The prevalence of the disease has increased in recent years and new races of the pathogen have been reported worldwide. The… More >

  • Open Access


    Effects of Auxin at Different Concentrations on the Growth, Root Morphology and Cadmium Uptake of Maize (Zea mays L.)

    Lingyan Hu, Haiyan Chen, Guangqun Zhang, Zihao Yu, Kai Yan, Fangdong Zhan, Yongmei He*

    Phyton-International Journal of Experimental Botany, Vol.91, No.9, pp. 1933-1944, 2022, DOI:10.32604/phyton.2022.020041

    Abstract Indoleacetic acid (IAA) is an important regulator that plays a crucial role in plant growth and responses to abiotic stresses. In the present study, a sand cultivation experiment was carried out to investigate the effects of IAA at different concentrations (0, 0.01, 0.1, 0.5, 1, and 2.5 mmol/L) on maize growth, root morphology, mineral elements (Ca, Mg) and Cd uptake under 20 mg/kg Cd stress. The results showed that 0.01 mmol/L is the optimal IAA concentration for enhancing the Cd tolerance of maize. Compared with the control treatment, 0.01 mmol/L IAA promoted maize growth, with… More >

  • Open Access


    Development of a New Cold-Tolerant Maize (Zea mays L.) Germplasm Using the ICE1 Gene from Arabidopsis thaliana

    Jing Qu1, Shuang Liu2, Peng Jiao2, Zhenzhong Jiang2, Jianbo Fei2, Shuyan Guan1,*, Yiyong Ma1,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.8, pp. 1709-1719, 2022, DOI:10.32604/phyton.2022.018854

    Abstract To develop cold-tolerant maize germplasms and identify the activation of INDUCER OF CRT/DRE-BINDING FACTOR EXPRESSION (ICE1) expression in response to cold stress, RT-PCR was used to amplify the complete open reading frame sequence of the ICE1 gene and construct the plant expression vector pCAMBIA3301-ICE1-Bar. Immature maize embryos and calli were transformed with the recombinant vector using Agrobacterium tumefaciens-mediated transformations. From the regenerated plantlets, three T1 lines were screened and identified by PCR. A Southern blot analysis showed that a single copy of the ICE1 gene was integrated into the maize (Zea mays L.) genomes of the three T1 generations.… More >

  • Open Access


    Discovering Candidate Chromosomal Regions Linked to Kernel Size-Related Traits via QTL Mapping and Bulked Sample Analysis in Maize

    Hameed Gul1, Mengya Qian1, Mohammad G. Arabzai1,2, Tianhui Huang1, Qiannan Ma1, Fangyu Xing1, Wan Cao1, Tingting Liu1, Hong Duan1, Qianlin Xiao1,*, Zhizhai Liu1,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.7, pp. 1429-1443, 2022, DOI:10.32604/phyton.2022.019842

    Abstract Kernel size-related traits, including kernel length, kernel width, and kernel thickness, are critical components in determining yield and kernel quality in maize (Zea mays L.). Dissecting the phenotypic characteristics of these traits, and discovering the candidate chromosomal regions for these traits, are of potential importance for maize yield and quality improvement. In this study, a total of 139 F2:3 family lines derived from EHel and B73, a distinct line with extremely low ear height (EHel), was used for phenotyping and QTL mapping of three kernel size-related traits, including 10-kernel length (KL), 10-kernel width (KWid), and 10-kernel… More >

  • Open Access


    Yield and quality of forage maize (Zea mays L.) with different levels of subsurface drip irrigation and plant density

    Yescas CP1, MA Segura C1, L Martínez C2, VP Álvarez R1, JA Montemayor T1, JA Orozco V1, JE Frías R1

    Phyton-International Journal of Experimental Botany, Vol.84, No.2, pp. 272-279, 2015, DOI:10.32604/phyton.2015.84.272

    Abstract The scarcity of water in arid and semiarid regions of the world is a problem that every day increases by climate change. The subsurface drip irrigation (SDI) and changes in population density of plants are alternatives that can be used to make a sustainable use of water. Therefore, the objectives of this study were to determine the combination that allows for an increased corn performance and efficient use of water without losing the quality of forage. Three different irrigation levels were applied through a system of a SDI at three different densities of forage maize… More >

  • Open Access


    Statistical models for evaluating the genotype-environment interaction in maize (Zea mays L.)

    Kandus1 M, D Almorza3, R Boggio Ronceros2, JC Salerno1

    Phyton-International Journal of Experimental Botany, Vol.79, pp. 39-46, 2010, DOI:10.32604/phyton.2010.79.039

    Abstract Our objective was to determine the genotype-environment interaction (GxE) in a hybrid integrated by maize lines either carrying or not balanced lethal systems. Experiments were conducted in three locations over a period of two years considering each yearlocation combination as a different environment. Yield data were analysed using the Additive Main Effects and Multiplicative Interaction (AMMI) model and the Sites Regression Analysis (SREG). Results were represented by biplots. The AMMI analysis was the best model for determining the interaction. More >

  • Open Access


    Effect of PEG8000 and NaCl on germination and seedling traits of tropical maize (Zea mays L.)

    Castañón-Nájera G1, L Latorunerie-Moreno2, YA Gálvez Muñoz3

    Phyton-International Journal of Experimental Botany, Vol.86, pp. 290-295, 2017, DOI:10.32604/phyton.2017.86.290

    Abstract Among the different types of abiotic stresses, water is the most damaging for crops. In the current research, the effect of water stress, induced with Polyethylene Glycol 8000 (PEG8000) and Sodium chloride (NaCl) solutions, was studied in maize genotypes. A randomized block design (RBD) with a factorial arrangement and four replications of 25 seeds each was used. The studied maize genotypes were RC2C39, RC2C51 (wild varieties of the State of Tabasco backcrossed with the endogamic line CML247 of the International Center for the Improvement of Maize and Wheat), wild Tamulte, VS536, and Asgrow 7573 hybrid, study… More >

  • Open Access


    Boosting forage yield and quality of maize (Zea mays L.) with multi-species bacterial inoculation in Pakistan

    Iqbal A1, MA Iqbal1, A Iqbal1, Z Aslam1, M Maqsood1, Z Ahmad2, N Akbar1, HZ Khan1, RN Abbas1, RD Khan1, G Abbas1, M Faisal1

    Phyton-International Journal of Experimental Botany, Vol.86, pp. 84-88, 2017, DOI:10.32604/phyton.2017.86.084

    Abstract Seed inoculation with bacterial species has the potential to increase yield and agro-qualitative attributes of forage crops. This study determined the response of forage maize to three plant growth promoting rhizobacteria [PGPR1 (Azotobacter chroococcum), PGPR2 (Pseudomonas flourescens) and PGPR3 (Bacillus megaterium)] inoculated individually and in different combinations (PGPR1+2, PGPR1+3, PGPR2+3 and PGPR1+2+3). A non-inoculated treatment was kept as a control. We used a completely randomized block design with four replicates. The PGPR1+2+3 treatment showed an outstanding performance by improving yield attributes, green forage yield, dry matter biomass, crude protein and total ash. The same treatment gave the lowest More >

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