Shuaishuai Zhang¹, Jin Li¹, Yongchang Shen¹, Linda Nartey Korkor¹, Qian Pu¹, Jin Lu¹, Balock Shakeela¹, Dedong Kong², Ou Li¹, Guohong Zeng^1,*, Xiufang Hu^1,*

Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 599-617, 2020, DOI:10.32604/phyton.2020.010074 - 22 June 2020

Abstract This study aimed to explore the cold tolerance of two cultivars of Dendrobium officinale (MG1, MG2) grown in different regions of China. Under -2°C incubation, cultivar MG1 remained active after 3 d, and continued to grow after returning to room temperature. However, MG2 could only maintain its activity after 2 d treatment at −2°C, and the seedlings died with the low temperature treatment time. Investigation of the characteristics of the plants grown in the south (Hangzhou) or north (Zhengzhou) of China indicated that the leaves of MG1 also had reduced stomatal density, the highest thickness, and… More >

Jabbari H¹, M Gholamhosseini¹, M Naeemi², A Nasiri³

Phyton-International Journal of Experimental Botany, Vol.87, pp. 133-142, 2018, DOI:10.32604/phyton.2018.87.133

Abstract Two experiments were performed in 2011-2012 to investigate the response of three oilseed rape cultivars to drought stress, grown under two climate conditions in Iran (cold and hot climates). The experiments were conducted using a randomized complete-block design arranged in split-plot with three replicates. The irrigation treatments (FI: full irrigation; WIF: withholding irrigation at flowering stage, and WIS: withholding irrigation at the silique formation stage until physiological maturity) were allocated to main plots, whereas subplots consisted of the oilseed rape cultivars: early maturating (GKH2005), relatively late maturing (Opera) and late maturing (Okapi). Drought caused a… More >

Zhou C^1,2, CA Busso³, YG Yang², Z Zhang⁴, ZW Wang¹, YF Yang⁵, XG Han¹

Phyton-International Journal of Experimental Botany, Vol.86, pp. 205-213, 2017, DOI:10.32604/phyton.2017.86.205

Abstract The mixed salt stress is common in nature. Salt stress always affects plant growth. Different plant species have different adaptive capacity to salty soils. Leymus chinensis is an herbaceous plant with different leaf colors. However, little research was conducted to explore the different tolerance mechanisms to salt stress among the three different leaf colour genotypes of Leymus chinensis (grey green, transitional color, yellow green). Pot experiments for Leymus chinensis in three leaf colors were conducted under mixed salt treatments in 2010. Malondialdehyde (MDA) and protein concentrations, and the activity of various antioxidant enzymes [i.e., superoxide dismutase (SOD), catalase… More >

Wang QL, DH Liu, JY Yue

Phyton-International Journal of Experimental Botany, Vol.85, pp. 270-282, 2016, DOI:10.32604/phyton.2016.85.270

Abstract This study aimed to determine the effects of different Cd concentrations (0, 1, 10, 100, and 300 μM CdCl₂) on Allium plantlets. To achieve this goal, we examined the (1) dynamics of Cd²⁺ flux in the rhizosphere, (2) partitioning of Cd between roots and leaves, (3) formation of reactive oxygen species (ROS), (4) levels of H₂O₂ and chlorophyll, and (5) translocation of several macro- and micronutrients. A strong net Cd²⁺ influx was observed in the root apex after exposure to 100 μM Cd for 24 h. Exposure to either 1 or 10 μM Cd for 96 h More >