Longhua Zhou^1,2,#, Ting He^1,2,#, Jing Li^1,2,3, Guimei Guo^1,2, Yingbo Li^1,2, Hongwei Xu^1,2, Runhong Gao^1,2, Linli Huang^1,2, Yifei Wang^1,2, Ruiju Lu^1,2, Zhiwei Chen^1,2,*, Chenghong Liu^1,2,*

Phyton-International Journal of Experimental Botany, Vol.91, No.7, pp. 1419-1428, 2022, DOI:10.32604/phyton.2022.019912

Abstract Phytohormones play important roles in plant growth and development, and polyploids are thought to be an important method for plant breeding. However, the relationship between ploidy and phytohormone is still unclear. In this study, barley at three ploidy levels were produced by microspore culture. Therefore, we further analyzed the phytohormone content in the shoots and roots of the three kinds of barley materials to study the effect of ploidy on phytohormones accumulation and distribution. The results showed that Abscisic acid (ABA), gibberellin (GA), jasmonic acid (JA), auxin (IAA), salicylic acid (SA) and cytokinin (CTK) were successfully determined in shoots and… More >

Tuan Nguyen Kim^1,*, Duy Ho Ngoc², Nikolay A. Moldovyan³

CMC-Computers, Materials & Continua, Vol.72, No.1, pp. 1105-1122, 2022, DOI:10.32604/cmc.2022.025653

Abstract Digital signature schemes are often built based on the difficulty of the discrete logarithm problems, of the problem of factor analysis, of the problem of finding the roots modulo of large primes or a combination of the difficult problems mentioned above. In this paper, we use the new difficult problem, which is to find the root in the finite ground field to build representative collective signature schemes, but the chosen modulo p has a special structure distinct , where is an even number and are prime numbers of equal magnitude, about . The characteristics of the proposed scheme are: i)… More >

SAUD BAWAZER¹, ASGHAR KHAN², ABDUR RAUF^3,*, TAIBI BEN HADDA⁴, YAHYA S. AL-AWTHAN^5,6, OMAR BAHATTAB⁵, UMER RASHID⁷, INAMULLAH KHAN⁸, MUHAMMAD ASIF NAWAZ⁹, MD SAHAB UDDIN^10,11, OLATUNDE AHMED¹², MOHAMMAD ALI SHARIATI¹³

BIOCELL, Vol.45, No.3, pp. 751-759, 2021, DOI:10.32604/biocell.2021.014004

Abstract Protein tyrosine phosphatase 1B (PTP1B) inhibition is considered as a potential therapeutic for the treatment of cancer, type 2 diabetes, and obesity. In our present work, we investigated the anti-diabetic potential of 8-hydroxydiospyrin (8-HDN) from D. lotus against the PTP1B enzyme. It showed significant inhibitory activity of PTP1B with an IC₅₀ value of 18.37 ± 0.02 μM. A detailed molecular docking study was carried out to analyze the binding orientation, binding energy, and mechanism of inhibition. A comparative investigation of 8-HDN in the catalytic, as well as the allosteric site of PTP1B, was performed. Binding energy data showed that compound… More >

Anna Stepanova^1,*, Maria Malunova¹, Svetlana Salamaikina¹, Renat Selimov², Aleksandra Solov’eva¹

Phyton-International Journal of Experimental Botany, Vol.90, No.2, pp. 543-552, 2021, DOI:10.32604/phyton.2021.013223

Abstract Rhodiola quadrifida is a rare mountain medicinal plant whose root extracts are used in traditional Chinese medicine as a hemostatic, antitussive, and tonic in the treatment of gynecological diseases. The aim of the study was to obtain R. quadrifida cultures at different degrees of differentiation in vitro and compare their growth characteristics and the content of salidroside and rosavin. Hairy roots were obtained by incubating cotyledons and hypocotyls in a suspension of Agrobacterium rhizogenes strain A4. The presence of the rolB and rolC genes was proven by polymerase chain reaction. The obtained roots were cultivated in Murashige-Skoog medium (MS). Calluses… More >

Dazhuang Qi^1,2,4,#, Meixia Liang^1,2,4,#, Fudong Jiang³, Jianzhao Li^1,2,4, Xuqiang Qiao^1,2,4,*, Hongxia Zhang^1,2,4,*

Phyton-International Journal of Experimental Botany, Vol.89, No.4, pp. 943-955, 2020, DOI:10.32604/phyton.2020.013801

Abstract Manganese (Mn) is one of the essential microelements in all organisms. However, high level of Mn is deleterious to plants. In this study, the effects of exogenous manganese application on mineral element, polyamine (PA) and antioxidant accumulation, as well as polyamine metabolic and antioxidant enzyme activities, were investigated in Malus robusta Rehd., a widely grown apple rootstock. High level of Mn treatments decreased endogenous Mg, Na, K and Ca contents, but increased Zn content, in a Mn-concentration-dependent manner. Polyamine metabolic assays revealed that, except the content of perchloric acid insoluble bound (PIS-bound) spermine, which increased significantly, the contents of putrescine… More >

Yuming Chu¹, Naila Rafiq², Mudassir Shams^3,*, Saima Akram⁴, Nazir Ahmad Mir³, Humaira Kalsoom⁵

CMC-Computers, Materials & Continua, Vol.66, No.1, pp. 275-290, 2021, DOI:10.32604/cmc.2020.011907

Abstract In this article, we construct the most powerful family of simultaneous iterative method with global convergence behavior among all the existing methods in literature for finding all roots of non-linear equations. Convergence analysis proved that the order of convergence of the family of derivative free simultaneous iterative method is nine. Our main aim is to check out the most regularly used simultaneous iterative methods for finding all roots of non-linear equations by studying their dynamical planes, numerical experiments and CPU time-methodology. Dynamical planes of iterative methods are drawn by using MATLAB for the comparison of global convergence properties of simultaneous… More >

Dingbang Zhang¹, Yi Zhang^2,*, Zhiguo Cao³, Tao Cheng¹

Journal of Renewable Materials, Vol.8, No.11, pp. 1391-1409, 2020, DOI:10.32604/jrm.2020.012695

Abstract In this paper, roots and copper slag were used to overcome the weak- ness and reinforce the mechanical property of soft soil. The experiments were designed by the Response Surface Method (RSM), the content optimizing of the root permeated copper slag mixed soil for achieving appropriate values of shear strength and the final results evaluating were also conducted by RSM. Four independent variables including moisture content (12–21% by dry weight of the mixture), slag content (10–20% by dry weight of the mixture), roots content (0–1.1% by dry weight of the mixture), and aspect ratio of roots L/d (5–40) were studied… More >

Aarón Giovanni Munguía-Rodríguez^1,2, José López-Bucio¹, Gerardo Rangel Sánchez^1,2, León Francisco Ruiz-Herrera¹, Yazmín Carreón-Abud², Miguel Martínez-Trujillo^2,*

Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 35-43, 2020, DOI:10.32604/phyton.2020.07835

Abstract The post-embryonic growth of the Arabidopsis thaliana root system can be modified by different types of stress, such as sublethal concentrations of metals, which may induce the production of reactive oxygen species (ROS). In this study, the effects of different concentrations of potassium chromate (K_₂CrO₄) on the distribution and relative quantity of hydrogen peroxide (H₂O₂) were determined in primary and adventitious roots in A. thaliana HyPer line seedlings. This line has a biosensor that specifically reports H₂O₂ levels within tissues as fluorescence. Primary root growth was inhibited at 100 μM Cr (VI); in contrast, adventitious root formation was induced over… More >

LUIS A. CARO¹, NATALIA SANTECCHIA¹, PABLO A. MARINANGELI¹, NÉSTOR R. CURVETTO^1,2, LUIS F. HERNÁNDEZ^1,3

BIOCELL, Vol.27, No.3, pp. 311-318, 2003, DOI:10.32604/biocell.2003.27.311

Abstract The induction and improvement of in vitro rhizogenesis of microshoots of Prosopis chilensis (Mol.) Stuntz and Nothofagus alpina (Poep. et Endl. Oerst.) were compared using Agrobacterium rhizogenes (Ar) versus indole-3-butyric acid (IBA) in the culture media. Microshoots of P. chilensis (1-2 cm length), coming from in vitro grown seedlings, were cultivated in a modified Broadleaved Tree Medium (BTMm) containing half salt concentration of macronutrients and 0.05 mg.L^-1 benzilaminopurine (BAP). After 30 days, microshoots with 2-4 leaves were selected and cultured in BTMm-agar in presence or abscense of Ar and in combination with IBA. For N. alpina, the apical shoots with… More >

GABRIEL CÉCCOLI^*1, JULIO C. RAMOS¹, LEANDRO I. ORTEGA² , JUAN M. ACOSTA¹, MARIEL G. PERRETA¹

BIOCELL, Vol.35, No.1, pp. 9-17, 2011, DOI:10.32604/biocell.2011.35.009

Abstract Chloris gayana Kunth is a grass species valuable as forage which was introduced into Argentina to be used as pasture in saline soils of subtropical and warm-temperate zones, given its good adaptability to drought, salinity and mild freezing. However, its tolerance varies according to the cultivar. In tetraploid cultivars, important reductions in yield have been observed. Here, a study of the variations produced on the root and stem system by salinity at different NaCl concentrations (0, 150 y 250 mM) was performed in the Boma cultivar, with the aim of determining the anatomical and morphological alterations produced by the salt… More >