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| 1 | A novel CCCH-type zinc finger protein SAW1 activates OsGA20ox3 to regulate gibberellin homeostasis and anther development in rice显示文摘Male sterility is a prerequisite for hybrid seed production.The phytohormone gibberellin(GA)is in-volved in regulating male reproductive development,but the mechanism underlying GA homeostasis in anther development remains less understood.Here,we report the isolation and characterization of a new positive regulator of GA homeostasis,swollen anther wall 1(SAW1),for anther development in rice(Oryza sativa L.).Rice plants carrying the recessive mutant allele saw1 produces abnormal anthers with swollen anther wall and aborted pollen.Clustered regularly interspaced short palindromic repeats(CRISPR)/CRIPSR-associated protein 9-mediated knockout of SAW1 in rice generated similar male sterile plants.SAW1 encodes a novel nucleus-localizing CCCH-tandem zinc finger protein,and this protein could directly bind to the promoter region of the GA synthesis gene OsGA20ox3 to induce its anther-specific expression.In the saw1 anther,the significantly decreased OsGA20ox3 expression resulted in lower bio-active GA content,which in turn caused the lower expression of the GA-inducible anther-regulator gene OsGAMYB.Thus,our results disclose the mechanism of the SAW1-GA20ox3-GAMYB pathway in controlling rice anther development,and provide a new target gene for the rapid generation of male sterile lines by genome editing for hybrid breeding. | Bin Wang Ruiqiu Fang Faming Chen Jingluan Han Yao-Guang Liu Letian Chen Qinlong Zhu | 2020 | Journal of Integrative Plant Biology2020,62,10: | 5 |
| 2 | Ecological Environment Conservation and Restoration and Sustainable Development of Minqin Oasis显示文摘Minqin oasis in the lower reaches of the Shiyang River is a main natural barrier for the Wuwei Basin. Due to the combined influence of human activities and natural factors in the past half a century, water quality in the lower reaches of the Shiyang River decreased and ecological environment deteriorated, which influenced sustainable development of this area and surrounding area seriously. This paper analyzed current situation and reasons of the deteriorated ecological environment in the lower reaches of the Shiyang River, and proposed that water environment regulation was the primary task in the eco-environment control of Minqin area, specifically,(a) By using existing policies, accelerating the construction of water-saving agriculture in the middle reaches of the Shiyang River, water quantity in the lower reaches would be guanranted, water shortage for agricultural production and ecological use in Minqin oasis would be relieved;(b) Unreasonable human activities such as overexploitation of underground water should be controlled strictly;(c) Water conservancy project should be developed vigorously to ensure rate of flow. It was expected that the above schemes would contribute to the benign circulation of ecological environment in Minqin oasis. | WANG Lide YAO Tuo XU Feng HAN Fugui GUO Chunxiu WANG Fangling Li Faming | 2016 | Journal of Landscape Research2016,8,1: | 2 |
| 3 | An Organic–Inorganic Hybrid Material Based on Benzo[ghi]perylenetri-imide and Cyclic Titanium-Oxo Cluster for Efficient Perovskite and Organic Solar Cells显示文摘Perovskite and organic solar cells usually require electron-transport interlayers to efficiently transport electrons from the photoactive layer to the metal electrode.In general,pure organic or inorganic materials are applied into the interlayers,but organic–inorganic hybrid materials have been rarely reported for this application.In this work,we report using the first titanium-oxo cluster-based organic–inorganic hybrid as the interlayer material by introducing largeπ-conjugated benzo[ghi]perylenetriimides as an organic part via a simple ligand-exchange reaction.This new hybrid material showed excellent solubility,well-aligned energy levels,and excellent electron mobilities,enabling its great potential application as an interlayer in solar cells such as perovskite and organic solar cells,providing high power conversion efficiencies of>20%and 16%,respectively.Therefore,we claim that our present work introduces a new class of cluster-based organic–inorganic hybrid interlayer materials that exhibit promising application in organic electronics. | Zhou Zhang Faming Han Jie Fang Chaowei Zhao Shuai Li Yonggang Wu Yuefeng Zhang Shengyong You Binghui Wu Weiwei Li | 2022 | CCS Chemistry2022,4,3: | 1 |
| 4 | Research by Online Education for a New Era on the Dependence of Vocational Students on Mobile Phones and Their Loneliness显示文摘More and more problems have been arisen from higher social development level and more and more terminal devices,especially addictive devices have been exposed to the education field during the constant development of cutting-edge techniques,thus making students more and more dependent on mobile phones and other terminal devices.In this process,students tend to more depend on mobile phones,which will make students sort out the exchange and communication with other persons by taking mobile phones as the core and be lonely.It is very important for the current vocational education to research the dependence of students on mobile phones and their loneliness,and break the deadlock.Therefore,in this paper,the online education is researched,and the dependence of vocational students on mobile phones as well as their loneliness are solved based on online education. | Weiwei Zhou Renfang Han Faming Pan | 2021 | Journal of Educational Theory and Management2021,5,2: | 0 |