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文字电话的液晶显示与实现
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作者 白灵 刘敬浩 梁月 《电子设计工程》 2012年第14期126-128,共3页
文中实现了文字电话通信前等待界面和通信中信息的液晶显示。使用Microchip公司生产的dsPIC33F数字信号控制器与16位开发板,以MPLAB为开发平台,使用C语言编程并通过C30进行编译完成对数字信号控制器的控制,从而实现控制器驱动液晶显示... 文中实现了文字电话通信前等待界面和通信中信息的液晶显示。使用Microchip公司生产的dsPIC33F数字信号控制器与16位开发板,以MPLAB为开发平台,使用C语言编程并通过C30进行编译完成对数字信号控制器的控制,从而实现控制器驱动液晶显示模块实现显示。利用点阵型液晶显示模块TSB1G7000的命令字实现显示界面的小图标设计和滚屏设计,并且实现了通信过程中双方通信数据的显示。实践表明,使用dsPIC33F数字信号控制器与液晶显示模块构成的显示系统可以满足文字电话的显示要求。 展开更多
关键词 dsPIC33F tsb1G7000 MPLAB 液晶显示
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Coordination of plant growth and abiotic stress responses by tryptophan synthase β subunit 1 through modulation of tryptophan and ABA homeostasis in Arabidopsis 被引量:6
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作者 Wen-Cheng Liu Ru-Feng Song +4 位作者 Si-Qiu Zheng Ting-Ting Li Bing-Lei Zhang Xiang Gao Ying-Tang Lu 《Molecular Plant》 SCIE CAS CSCD 2022年第6期973-990,共18页
To adapt to changing environments, plants have evolved elaborate regulatory mechanisms balancing their growth with stress responses. It is currently unclear whether and how the tryptophan (Trp), the growth-related hor... To adapt to changing environments, plants have evolved elaborate regulatory mechanisms balancing their growth with stress responses. It is currently unclear whether and how the tryptophan (Trp), the growth-related hormone auxin, and the stress hormone abscisic acid (ABA) are coordinated in this trade-off. Here, we show that tryptophan synthase β subunit 1 (TSB1) is involved in the coordination of Trp and ABA, thereby affecting plant growth and abiotic stress responses. Plants experiencing high salinity or drought display reduced TSB1 expression, resulting in decreased Trp and auxin accumulation and thus reduced growth. In comparison with the wild type, amiR-TSB1 lines and TSB1 mutants exhibited repressed growth under non-stress conditions but had enhanced ABA accumulation and stress tolerance when subjected to salt or drought stress. Furthermore, we found that TSB1 interacts with and inhibits β-glucosidase 1 (BG1), which hydrolyses glucose-conjugated ABA into active ABA. Mutation of BG1 in the amiR-TSB1 lines compromised their increased ABA accumulation and enhanced stress tolerance. Moreover, stress-induced H2O2 disrupted the interaction between TSB1 and BG1 by sulfenylating cysteine-308 of TSB1, relieving the TSB1-mediated inhibition of BG1 activity. Taken together, we revealed that TSB1 serves as a key coordinator of plant growth and stress responses by balancing Trp and ABA homeostasis. 展开更多
关键词 TRYPTOPHAN AUXIN growth ABA abiotic stress tsb1
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