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4 results on '"Zhongjuan Sun"'

1. Sgh1, an SR-like Protein, Is Involved in Fungal Development, Plant Infection, and Pre-mRNA Processing in Fusarium graminearum

Author

Guanghui Wang, Peng Sun, Zhongjuan Sun, Jindong Zhu, Dan Yu, Zhe Tang, Zonghua Wang, Chenfang Wang, and Huawei Zheng

Subjects
Fusarium graminearum, wheat scab, SR protein, Gbp2/Hrb1 ortholog, RNA processing, Biology (General), QH301-705.5
Abstract

Serine/arginine (SR) proteins are essential pre-mRNA splicing factors in eukaryotic organisms. Our previous studies have shownthat the unique SR-specific protein kinase Srk1 is important for RNA splicing and gene transcription in Fusarium graminearum, and interacts with two SR proteins, FgSrp1 and FgSrp2. In this study, we have identified an SR-like protein called Sgh1 in F. graminearum, which is orthologous to budding yeast paralogous Gbp2 and Hrb1. Our data have shownthat the Sgh1 is involved in vegetative growth, conidiation, sexual reproduction, DON synthesis, and plant infection. Moreover, the Sgh1 is mainly localized to the nucleus. RNA-seq analysis has shownthat the expression of over 1100 genes and the splicing efficiency in over 300 introns were affected in the Δsgh1 mutant. Although the RS domain and all three of the RRM domains are important for the Sgh1 functions, only the RS domain is responsible for its nuclear localization. Finally, we verified that the Sgh1 interacts with the unique SR-specific kinase Srk1 in F. graminearum by the yeast-two hybrid (Y2H) and bimolecular fluorescence complementation (BiFC) assays. Taken together, our results have revealed that the Sgh1 regulates the fungal development, plant infection, and the pre-mRNA processing, and the RS domain regulates the function of the Sgh1 by modulating its nucleocytoplasmic shuttling.

Published
2022
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3. Reverse knowledge acquisition in emerging market MNEs: The experiences of Huawei and ZTE

Author

Zhongjuan Sun, Xiaolan Fu, Pervez N. Ghauri, Fu, Xiaolan, Sun, Zhongjuan, and Ghauri, Pervez N

Subjects
Marketing, Knowledge management, business.industry, Process (engineering), 05 social sciences, integration, Knowledge acquisition, Knowledge sharing, capability upgrading, Internationalization, knowledge acquisition, Knowledge integration, 0502 economics and business, internationalisation, 050211 marketing, reverse learning, business, Emerging markets, 050203 business & management, Mechanism (sociology), Reverse learning
Abstract

Based on case studies of leading Chinese MNEs' international operations in developed countries, this study develops a reverse knowledge acquisition model of emerging market MNEs through subsidiary-led reverse learning, knowledge sharing and integration processes. It unpacks MNEs' external learning process and contributes to the literature by exploring three mechanisms of learning, sharing and integration. It finds three reverse learning channels, a multi-level hub-spoke type of knowledge acquiring mechanism, and a two-tier three-step integration mechanism. The learning mechanism confirms knowledge acquisition driven by reverse learning behaviours; the sharing mechanism enriches the community perspective of capability building and sharing; the integration mechanism provides an effective way of knowledge integration within the MNEs. Refereed/Peer-reviewed

Published
2018

4. The multifaceted role of information and communication technology (ICT) in innovation: evidence from Chinese manufacturing firms

Author

Jizhen Li, Zhongjuan Sun, and Jun Hou

Subjects
Economics and Econometrics, 05 social sciences, Sample (statistics), Investment (macroeconomics), Moderation, Information and Communications Technology, Management of Technology and Innovation, 0502 economics and business, L100 Economics, Manufacturing firms, Business, 050207 economics, Marketing, China, 050203 business & management, Industrial organization, N200 Management studies
Abstract

Using a sample of 1397 manufacturing firms in China, this study explores how information and communication technology (ICT) stimulates innovation performance through interaction with investment in internal and external knowledge. The results of this study reveal that the adoption of ICT not only contributes to innovation by directly enhancing its output, but also affects the creation of knowledge along two different paths in Chinese manufacturing firms. Specifically, ICT mediates research and development (R&D) to foster innovative sales and it is an effective moderator in leveraging externally acquired knowledge.

Published
2017

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