H2O2 signaling modulates Glycoprotein-1 induced programmed cell death in tobacco suspension cells,Pesticide Biochemistry and Physiology

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H2O2 signaling modulates Glycoprotein-1 induced programmed cell death in tobacco suspension cells
Pesticide Biochemistry and Physiology ( IF 4.2 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.pestbp.2020.104697
Yubo Sun ₁ , Xiangrong Tian ₁ , Hao Wu ₁ , Xinchang Hao ₁ , Baowei Gao ₁ , Hongyan Zhang ₁ , Juntao Feng ₁ , Lirong Han ₁

Affiliation

Glycoprotein (GP)-1 is a glycoprotein elicitor with antiviral activity found in Streptomyces kanasensis zx01. GP-1 can induce programmed cell death (PCD) in vitro; however, the underlying mechanism is unclear. In the present study, we demonstrated that GP-1 induced PCD in tobacco suspension cells, which was modulated by hydrogen peroxide (H2O2). GP-1 participated in and modulated biologically relevant signaling in plant cells. GP-1 induced tobacco cell death in a dose- and time-dependent manner; affected the expression of BRI1-associated receptor kinase 1 (BAK1) and the accumulation of salicylic acid (SA), which are related to PCD; and enzymatic activities and mitochondrial functions. In conclusion, GP-1-induced PCD in tobacco may be mediated by H2O2 which alters BAK1 and SA levels, as well as mitochondrial and gene function. This cell signal cascade played an important role in the process of GP-1 induced plant disease resistance.

中文翻译：

H2O2 信号调节糖蛋白-1 诱导的烟草悬浮细胞程序性细胞死亡

糖蛋白 (GP)-1 是在卡纳链霉菌 zx01 中发现的具有抗病毒活性的糖蛋白引发子。 GP-1可在体外诱导程序性细胞死亡（PCD）；然而，其根本机制尚不清楚。在本研究中，我们证明 GP-1 在烟草悬浮细胞中诱导 PCD，并受到过氧化氢 (H2O2) 的调节。 GP-1 参与并调节植物细胞中的生物学相关信号传导。 GP-1 以剂量和时间依赖性方式诱导烟草细胞死亡；影响与PCD相关的BRI1相关受体激酶1（BAK1）的表达和水杨酸（SA）的积累；以及酶活性和线粒体功能。总之，烟草中 GP-1 诱导的 PCD 可能是由 H2O2 介导的，H2O2 会改变 BAK1 和 SA 水平以及线粒体和基因功能。这种细胞信号级联在GP-1诱导植物抗病过程中发挥了重要作用。

更新日期：2021-01-01

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