Open Access
REVIEW
Ibrahim M. Abdelsalam1, Mostafa Elshobary1,3,*, Mohamed M. Eladawy1, Mohammed Nagah2
Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 69-90, 2019, DOI:10.32604/phyton.2019.06831
Abstract Heavy metal contamination of land and freshwater resources is a serious concern worldwide. It adversely affects the health of animals, plants and humans. Therefore, remediation of toxic heavy metals must be highly considered. Unlike other techniques, phytoremediation is a holistic technology and can be used in large scale for soil remediation as it is costless, novel, environmentally-safe and solar-driven technology. Utilization of non-edible plants in phytoremediation is an ingenious technique as they are used to generate new bioenergy resources along with the remediation of contaminated soils. Some nonfood bioenergy crops such as Salix species, Miscanthus species, Populus species, Eucalyptus species,… More >
Open Access
ARTICLE
Xiachen Lv1,#, Yunxia Fang1,#, Lantian Zhang1, Weiyi Zhang1, Ling Xu1, Jingjin Han1, Bailing Jin2, Xian Zhang1, Xiaoqin Zhang1,*, Dawei Xue1,*
Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 91-100, 2019, DOI:10.32604/phyton.2019.06622
Abstract Melatonin (MLT) is a hormonal substance found in many organisms and can improve plant stress resistance. In this study, the japonica rice variety Y32 and indica rice variety NJ6 were cultivated in hydroponics under different concentrations of CdCl2 at the two-leaf stage. The growth, physiological and biochemical responses of the seedlings and the expression of cadmium (Cd)-related genes under exogenous melatonin (MLT) treatment were assessed. The results indicated that Cd stress destroyed the dynamic balance between reactive oxygen species (ROS) production and removal, resulting in ROS accumulation, membrane lipid peroxidation, and impaired growth and development. Following the application of exogenous… More >
Open Access
ARTICLE
Min Huang*, Hengdong Zhang, Chunrong Zhao, Guanghui Chen and Yingbin Zou
Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 101-107, 2019, DOI:10.32604/phyton.2019.06694
Abstract Improving grain amino acid content of rice (Oryza sativa L.) is essential for the health of consumers. This study was conducted to identify the physiological processes that contribute to the higher grain amino acid content in hybrid rice cultivar Lingliangyou 268 compared to Luliangyou 996. The results showed that total amino acid content in grains was 9% higher in Lingliangyou 268 than in Luliangyou 996. There was no significant difference in grain nitrogen (N) content between Lingliangyou 268 and Luliangyou 996, while ratio of amino acid to N was 6% higher in Lingliangyou 268 compared to Luliangyou 996. A total… More >
Open Access
ARTICLE
Qunqun Hao1,#, Bo Lyu2,#, Yuhan Tang1,#, Deya Wang1, Yuanyuan Li1, Qingliang Li1, Yuhai Wang1,* and Wenqiang Wang1,*
Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 109-117, 2019, DOI:10.32604/phyton.2019.06734
Abstract A barley mutant, 194, was observed to exhibit a leaf spot phenotype over the whole course of its growing period. In this study, the phenotype and antioxidant competence were studied in the lesion mimic mutant 194. Plant height was slightly higher in mutant 194 than in the wild type (WT). In addition, leaf spot per plant in mutant 194 was significantly higher than in WT. Antioxidant competence, as indicated by reactive oxygen species (ROS) accumulation, antioxidant enzyme activity, and the expression of antioxidant enzyme-encoding genes was also assessed in mutant 194. Compared to the WT, mutant 194 displayed a relatively… More >
Open Access
ARTICLE
Muhammad Zafar-ul-Hye1,*, Tariq Shahzad Bhutta1, Muhammad Shaaban1, Shahid Hussain1, Muhammad Farooq Qayyum1, Umar Aslam1 and Zahir Ahmad Zahir2
Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 119-129, 2019, DOI:10.32604/phyton.2019.06570
Abstract Soil salinity affects the growth and yield of crops. The stress of soil salinity on plants can be mitigated by inoculation of plant growth promoting bacteria (PGPR). The influence of PGPR inoculation on wheat (Triticum aestivum L.) crop productivity under salinity stress has not been properly addressed so far. Therefore, the present study was conducted to investigate the effects of various PGPR strains (W14, W10 and 6K; alone and combined) at several growth attributes of wheat plant under different soil salinity gradients (3, 6 and 9 dS m-1). The growth attributes of wheat (height, roots, shoots, spikes, grains quality, biological… More >
Open Access
ARTICLE
Grisel Fierros-Romero1,*, M. Elena Mellado-Rojas2, Reynaldo C. Pless3, Juan Ignacio Valiente-Banuet1, Ashutosh Sharma1 and Elda M. Beltrán-Peña2
Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 131-137, 2019, DOI:10.32604/phyton.2019.05036
Abstract Torin 1 is an ATP-competitive TOR inhibitor which inhibits the signaling of TOR and S6K kinase in mammals and plants. The objective of this research is to determine the effect of Torin 1 in a relatively simple and homogeneous plant system such as the NT-1 tobacco suspension cell cultures. Cultures of NT-1 cells were tested with 5, 50, 150 and 250 nM of Torin 1. During kinetics growth of NT-1 tobacco suspension cell cultures, 150 and 250 nM Torin 1 inhibits the early growth and later enhanced the cellular proliferation during exponential growth by means of an increased expression of… More >
Open Access
ARTICLE
M. Y. Ovando-Domínguez1, M. C. Luján-Hidalgo1, D. González-Mendoza2, A. A. Vargas-Díaz3, N. Ruiz-Lau1,4, F. A. Gutiérrez-Miceli1, C. A. Lecona-Guzmán1,*
Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 139-147, 2019, DOI:10.32604/phyton.2019.06546
Abstract Callus cultures of Annona muricata and Annona purpurea were induced in Murashige and Skoog (MS) medium supplemented with different concentrations of 1-naphthylacetic acid (NAA), 6-benzyladenine (BA) and 2,4-dichlorophenoxyacetic acid (2,4-D) utilized hypocotyls with explant. The highest percentage of callus formation was the treatment supplemented with 3 mg L-1 NAA for A. muricata (100%) while for A. purpurea in lower percentage (75%). BA stimulated the formation of shoots in all the evaluated concentrations, being the concentration of 2 mg L-1 the one that induced the greater formation of shoots for A. muricata (23 shoots/explant) and A. purpurea (28 shoots/explant). The content… More >
Open Access
ARTICLE
Maryam Monazzah1, Sattar Tahmasebi Enferadi1,*, Zohre Rabiei1 and Alessandro Mattiello2
Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 149-159, 2019, DOI:10.32604/phyton.2019.05053
Abstract Helianthus annuus L. as an oil seed crop is widely grown throughout the world. One of the most destructive diseases of sunflower is stem rot caused by Sclerotinia sclerotiorum. Oxalic acid is the major virulence factor of this necrotrophic pathogen. It is important to further investigate plant responses to this non-specific toxin. Therefore, in the present study, we compared the patterns of total soluble proteins and xylem morphology of partially resistant and susceptible sunflower lines after treatment with Sclerotinia culture filtrate. The basal stems of both lines were treated with 40 mM oxalic acid (pH 3.7) of fungus culture filtrate… More >
Open Access
ARTICLE
A. Cruz-Estrada1,2, E. Ruiz-Sánchez2, I.L. Medina Baizabal1, E. Balam-Uc1 and M. Gamboa-Angulo1,*
Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 161-170, 2019, DOI:10.32604/phyton.2019.05809
Abstract The development of plant-derived products to control Bemisia tabaci Genn. (Hemiptera: Aleyrodidae) is an urgent need for production of horticultural crops. Plant extracts and essential oils of several species of the genus Eugenia (Myrtaceae) have shown insecticidal activity. In southern Mexico, leaf extracts from Eugenia winzerlingii showed nematicidal effect but its insecticidal properties have not been explored. Therefore, the objective of this study was to evaluate the insecticidal effect of aqueous and organic extracts from E. winzerlingii leaves on B. tabaci egg, nymph and adult stages, and else to explore its nursery propagation. Then, extracts of this species were obtained… More >
Open Access
ARTICLE
Ramzi Bchir1,2,*, Aslam Sami Djellouli1, Nadia Zitouna3, Didier Aurelle4, Gerard Pergent2, Christine Pergent-Martini2 and Habib Langar1
Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 171-184, 2019, DOI:10.32604/phyton.2019.05261
Abstract Specimens of Cymodocea (Viridiplantae, Magnoliophyta) collected on the Tunisian coasts showed a particular morphological and anatomical difference with the classical descriptions of Cymodocea nodosa (Ucria) Asch. the only species of this genus reported in the Mediterranean Sea. In order to precise the taxonomic identity of the new specimens we aimed in this work (i) to verify the identity of the new forms, (ii) to evaluate the genetic diversity of the population, (iii) to test the validity of the existing identification keys of the Tunisian Cymodocea populations. Four stations located in two regions of the Tunisian coasts were sampled. Leaf morphological… More >
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