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  • Open Access


    AM Fungi and Piriformospora indica Improve Plant Growth of Pinus elliottii Seedlings

    Taoze Sun, Wei Tan, Yujie Yang, Hongna Mu*

    Phyton-International Journal of Experimental Botany, Vol.90, No.1, pp. 171-178, 2021, DOI:10.32604/phyton.2020.013668

    Abstract Pinus elliottii is an exotic afforestation pine extensively distributed in southern parts of China. In order to understand whether endophytic fungi can affect seedling growth of P. elliottii, Piriformospora indica (Pi), Funnelifcrmis mosseae (Fm), and Diversispora tortuosa (Dt) were inoculated respectively, and the non-inoculated group was set as control. The growth indexes, the contents of soluble sugar and soluble protein, and plant endogenous hormone levels in the leaves of P. elliottii, were analyzed. The results showed that Fm, Dt and Pi colonized the P. elliottii roots to form mycorrhizal structure and chlamydospores arranged in beads respectively. Three fungal inoculants exhibited… More >

  • Open Access


    Exogenous Spermidine Promotes Somatic Embryogenesis of Cunninghamia lanceolata by Altering the Endogenous Phytohormone Content

    Dandan Wang1,#, Yulin Guo1,#, Xiaofei Long1, Yan Pan1, Dingjie Yang1, Rui Li1, Ye Lu1, Ying Chen1,2, Jisen Shi1, Jinhui Chen1,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.1, pp. 27-34, 2020, DOI:10.32604/phyton.2020.08971

    Abstract In order to study how exogenous hormones in C. lanceolata (gymnosperm) regulate somatic embryogenesis, we measured the endogenous phytohormones of two genotypes with different somatic embryogenesis efficiency and found that an increase in endogenous concentrations of IAA and ABA may be correlated to more efficient somatic embryogenesis. By applying exogenous spermidine, we found that exogenous hormones may affect somatic embryogenesis efficiency through affecting the endogenous phytohormone content. Based on these results, further studies can be conducted whereby the concentration of exogenous hormones or the levels of endogenous phytohormones by molecular methods are regulated to promote somatic embryogenesis. Our research may… More >

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