Junhui Yan¹, Yawen Wang¹, Qiong Li¹, Yu Zhou², Xu Wang^2,*, Li Luo^1,*

Phyton-International Journal of Experimental Botany, Vol.93, No.6, pp. 1237-1248, 2024, DOI:10.32604/phyton.2024.051517

Abstract Rhizobia induces nitrogen-fixing nodules in legumes used in agricultural production, providing a direct source of combined nitrogen to leguminous crops. Small peptides, such as CLAVATA3/EMBRYO SURROUNDING REGION peptides (CLE), are known to regulate the formation and development of nitrogen-fixing nodules in legumes. Root meristem growth factor (RGF) peptides from Medicago truncatula not only regulate root development but also modulate nodulation symbiosis with Sinorhizobium meliloti. However, the impact of RGF peptides from one leguminous species on the others remains unclear. In this study, we investigate the effects of the RGF family peptide MtRGF6p from M. truncatula on nodulation symbiosis… More >

Yuying Jiang^1,#, Renhua Huang^1,#, Lei Jiang¹, Ke Chen^1,*, Wenkun Zhu^2,*

Phyton-International Journal of Experimental Botany, Vol.90, No.2, pp. 403-415, 2021, DOI:10.32604/phyton.2021.014376

Abstract Arbuscular mycorrhizal fungi (AMF) can improve plant tolerance to several abiotic stresses, including heavy metals, drought or salinity exposure. However, the role of AMF in alleviation of soil cadmium (Cd)-induced toxicity to plants is still largely unknown. In this study, Cd speciation in soil and subcellular distribution of Cd were used to characterize the roles of application AM fungi in the alleviation of Cd toxicity in alfalfa plants. Our results showed that the addition of Glomus mosseae in Cd contaminated soil (10 mg/Kg) significantly increased soil pH, cation exchange capacity (CEC) and organic matter in rhizosphere… More >

Liangliang Yu^*, Wenjun Zhou, Danping Zhang, Junhui Yan, Li Luo

Phyton-International Journal of Experimental Botany, Vol.89, No.4, pp. 873-881, 2020, DOI:10.32604/phyton.2020.011882

Abstract Phytosulfokine-α (PSK-α), a sulfated pentapeptide with the sequence YIYTQ, is encoded by a small precursor gene family in Arabidopsis. PSK-α regulates multiple growth and developmental processes as a novel peptide hormone. Despite its importance, functions of PSK-α in M. truncatula growth remains unknown. In this study, we identified five genes to encode PSK-α precursors in M. truncatula. All of these precursors possess conserved PSK-α signature motif. Expression pattern analysis of these MtPSK genes revealed that each gene was expressed in a tissue-specific or ubiquitous pattern and three of them were remarkably expressed in root. Treatment of M. truncatula seedlings More >