A. C. Michel-Aceves¹, J. F. Díaz-Nájera¹, R. Ariza-Flores², M. A. Otero-Sánchez¹, R. Escobar-Martínez¹ and C. H. Avendaño-Arrazate^3,*

Phyton-International Journal of Experimental Botany, Vol.88, No.3, pp. 325-333, 2019, DOI:10.32604/phyton.2019.06777

Abstract In two tomato genotypes, we assessed control alternatives for damping-off with combinations of chemical fungicides and native/commercial strains of biological agents. Forty treatments consisting of 19 levels of mixing products, chemical fungicides, native strains and commercial products from biological control agents, and untreated treatment were used onto Ramsés and Toro hybrids. They were distributed on an incomplete block design in divided plots arrangement, where genotypes constitute the larger ones and the 8-repetition mixed products, the smaller ones. Putting 180 mL of fungal complexes, made of spores and mycellium Fusarium-solani (2 × 106 UFC), Rhizoctonia-solani (1 × 106 UFC), Phytophthora-capsici (1… More >

Xiaoqin Zhang, Tao Tong, Bin Tian, Yunxia Fang, Jiangjie Pan, Junjun Zheng and Dawei Xue*

Phyton-International Journal of Experimental Botany, Vol.88, No.3, pp. 253-260, 2019, DOI:10.32604/phyton.2019.06143

Abstract Barley (Hordeum vulgare L.) is one of the most Aluminum (Al) sensitive cereal species. In this study, the physiological, biochemical, and molecular response of barley seedlings to Al treatment was examined to gain insight into Al response and tolerance mechanisms. The results showed that superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) activity were inhibited to different degrees following Al exposure. The MDA content also significantly increased with increasing Al concentrations. SRAP results indicated significant differences between Al treatments and controls in terms of SRAP profile, and the genomic template stability (GTS) decreased with increasing Al concentration and duration. These… More >

Xiachen Lv^1,#, Yunxia Fang^1,#, Lantian Zhang¹, Weiyi Zhang¹, Ling Xu¹, Jingjin Han¹, Bailing Jin², Xian Zhang¹, Xiaoqin Zhang^1,*, Dawei Xue^1,*

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 >