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| 1 | Cytological analysis and genetic control of rice anther development显示文摘Microsporogenesis and male gametogenesis are essential for the alternating life cycle of flowering plants between diploid sporophyte and haploid gametophyte generations.Rice(Oryza saliva) is the world's major staple food,and manipulation of pollen fertility is particularly important for the demands to increase rice grain yield.Towards a better understanding of the mechanisms controlling rice male reproductive development,we describe here the cytological changes of anther development through 14 stages,including cell division,differentiation and degeneration of somatic tissues consisting of four concentric cell layers surrounding and supporting reproductive cells as they form mature pollen grains through meiosis and mitosis.Furthermore,we compare the morphological difference of anthers and pollen grains in both monocot rice and eudicot Arabidopsis thaliana.Additionally,we describe the key genes identified to date critical for rice anther development and pollen formation. | Dabing Zhang Xue Luo Lu Zhu | 2011 | Journal of Genetics and Genomics2011，38，9： | 56 |
| 2 | Rice CYP703A3, a cytochrome P450 hydroxylase, is essential for development of anther cuticle and pollen exine显示文摘Anther cuticle and pollen exine act as protective envelopes for the male gametophyte or pollen grain, but the mechanism underlying the synthesis of these lipidic polymers remains unclear. Previously, a tapetum‐expressed CYP703A3, a putative cytochrome P450 fatty acid hydroxylase, was shown to be essential for male fertility in rice(Oryza sativa L.). However,the biochemical and biological roles of CYP703A3 has not been characterized. Here, we observed that cyp703a3‐2 caused by one base insertion in CYP703A3 displays defective pollen exine and anther epicuticular layer, which differs from Arabidopsis cyp703a2 in which only defective pollen exine occurs. Consistently, chemical composition assay showed that levels of cutin monomers and wax components were dramatically reduced in cyp703a3‐2 anthers. Unlike the wide range of substrates of Arabidopsis CYP703A2, CYP703A3 functions as an in‐chain hydroxylase only for a specific substrate, lauric acid, preferably generating 7‐hydroxylated lauric acid. Moreover, chromatin immunoprecipitation and expression analyses revealed that the expression of CYP703A3 is directly regulated by Tapetum Degeneration Retardation, a known regulator of tapetum PCD and pollen exine formation. Collectively, our results suggest that CYP703A3 represents a conserved and diversified biochemical pathway for in‐chain hydroxylation of lauric acid required for the development of male organ in higher plants. | Xijia Yang Di Wu Jianxin Shi Yi He Franck Pinot Bernard Grausem Changsong Yin Lu Zhu Mingjiao Chen Zhijing Luo Wanqi Liang Dabing Zhang | 2014 | Journal of Integrative Plant Biology2014，56，10： | 21 |
| 3 | Interactions of OsMADS1 with Floral Homeotic Genes in Rice Flower Development显示文摘在繁殖开发期间,米饭植物开发决定最后的谷物收益的唯一的花器官。OsMADS1,象 SEPALLATA 一样疯盒子的基因之一,被解开了玩关键角色 inrice 花的机关身份说明和花的分裂组织确定性。然而,在调整花开发与另外的花的 homeotic 基因位于 OsMADS1 的相互作用下面的分子的机制 remainslargely 逃犯。在这个工作,我们在他们的蛋白质之中与物理相互作用一起与 B- , C- ,和 D 班基因学习了 OsMADS1 的基因相互作用。我们证明在 OsMADS1 和 OsMADS3 之间的物理、基因的相互作用为花的分裂组织活动维护和机关身份说明是必要的;当 OsMADS1 身体上并且遗传上在调整花的分裂组织确定性和 suppressingspikelet 分裂组织回复与 OsMADS58 交往时。我们提供了重要基因证据在花开发期间支持二米饭 C 班基因(OsMADS3 和 OsMADS58 ) 的 neofunctionalization。基因表示介绍和量的 RT-PCR 分析进一步表明 OsMADS1 影响涉及发信号的花的身份和荷尔蒙的许多基因的表达式,并且染色质 immunoprecipitation (芯片)-PCR 试金进一步证明 OsMADS17 是 OsMADS1 的直接目标基因。一起拿,这些结果表明 OsMADS1 在指定米饭有多样化的规章的功能花的机关和分裂组织身份,可能通过它和不同花的 homeotic 管理者的基因、物理的相互作用。 | Yun Hu Wanqi Liang Changsong Yin Xuelian Yang Baozhe Ping Anxue Li Ru Jia Mingjiao Chen Zhijing Luo Qiang Cai Xiangxiang Zhao Dabing Zhang Zheng Yuan | 2015 | Molecular Plant2015，8，9： | 10 |
| 4 | Investigation of CRISPR/Cas9-induced SD1 rice mutants highlights the importance of molecular characterization in plant molecular breeding显示文摘Although Clustered Regularly Interspaced Short Palindromic Repeats(CRISPR)/CRISPR-associated 9(Cas9)system has been widely used for basic research in model plants,its application for applied breeding in crops has faced strong regulatory obstacles,due mainly to a poor understanding of the authentic output of this system,particularly in higher generations.In this study,different from any previous studies,we investigated in detail the molecular characteristics and production performance of CRISPR/Cas9-generated SD1(semi-dwarf 1)mutants from T2 to T4 generations,of which the selection of T1 and T2 was done only by visual phenotyping for semidwarf plants.Our data revealed not only on-and off-target mutations with small or lager indels but also exogenous elements in T2 plants.All indel mutants passed stably to T3 or T4 without additional modifications independent on the presence of Cas9,while some lines displayed unexpected hereditary patterns of Cas9 or some exogenous elements.In addition,effects of various SD1 alleles on rice height and yield differed depending on genetic backgrounds.Taken together,our data showed that the CRISPR/Cas9 system is effective in producing homozygous mutants for functional analysis,but it may be not as precise as expected in rice,and that early and accurate molecular characterization and screening must be carried out for generations before transitioning of the CRISPR/Cas9 system from laboratory to field. | Sukumar Biswas Jiaqi Tian Rong Li Xiaofei Chen Zhijing Luo Mingjiao Chen Xiangxiang Zhao Dabing Zhang Staffan Persson Zheng Yuan Jianxin Shi | 2020 | Journal of Genetics and Genomics2020，47，5： | 4 |
| 5 | Catalytic Removal of PM by Li-Co Delafossite Catalysts显示文摘By using solution combustion synthesis method, several Li-Co delafossite catalysts were prepared via a highly exothermic and self-sustaining reaction. The prepared catalysts were characterized by XRD, SEM and the catalytic activities of the catalysts were evaluated by small sample experiment. It is shown that under loose contact conditions this catalyst can catalyze soot combustion at 360 ℃, and the best prepared catalyst Li Co0.9O2 can ignite soot combustion below 300 ℃. In the incompletely synthesized catalysts the Co cations shift to higher electrovalence, so the number of the surface adsorbed oxygen(O-) of the prepared delafossite catalysts increase and Li Co0.9O2 has the optimum catalytic activity. | 王伟 ZHANG Jichen 肖静 LUO Dabing | 2015 | Journal of Wuhan University of Technology(Materials Science)2015，30，2： | 2 |
| 6 | OsMADS32 interacts with PI-like proteins and regulates rice flower development显示文摘OsMADS32 is a monocot specific MIKC^c type MADS-box gene that plays an important role in regulating rice floral meristem and organs identity, a crucial process for reproductive success and rice yield. However, its underlying mechanism of action remains to be clari fied. Here, we characterized a hypomorphic mutant allele of OsMADS32/CFO1, cfo1-3 and identi fied its function in controlling rice flower development by bioinformatics and protein-protein interaction analysis. The cfo1-3 mutant produces defective flowers,including loss of lodicule identity, formation of ectopic lodicule or hull-like organs and decreased stamen number,mimicking phenotypes related to the mutation of B class genes. Molecular characterization indicated that mis-splicing of OsMADS32 transcripts in the cfo1-3 mutant resulted in an extra eight amino acids in the K-domain of OsMADS32 protein.By yeast two hybrid and bimolecular fluorescence complementation assays, we revealed that the insertion of eight amino acids or deletion of the internal region in the K1 subdomain of Os MADS32 affects the interaction between OsMADS32 with PISTILLATA(PI)-like proteins OsMADS2 and OsMADS4. This work provides new insight into the mechanism by which Os MADS32 regulates rice lodicule and stamen identity, by interaction with two PI-like proteins via its K domain. | Huanhuan Wang Liang Zhang Qiang Cai Yun Hu Zhenming Jin Xiangxiang Zhao Wei Fan Qianming Huang Zhijing Luo Mingjiao Chen Dabing Zhang Zheng Yuan | 2015 | Journal of Integrative Plant Biology2015，57，5： | 2 |
| 7 | Dielectric properties of CaCu 3 Ti 4 O 12 ceramics modified by SrTiO 3显示文摘 | Hongtao Yu Hanxing Liu Hua Hao Dabing Luo Minghe Cao | 2007 | Materials Letters2007，，8： | 1 |
| 8 | Microwave synthesis of high dielectric constant Ca- Cu3Ti4O12显示文摘 | YU Hongtao LIU Hanxing LUO Dabing | 2008 | J Mater Proe Tech2008，208，： | 1 |
| 9 | The microstructures and dielectric properties of xSrZrO3–(1?x)SrTiO3 ceramics显示文摘 | Zhaohui Wu Minghe Cao Hongtao Yu Zhonghua Yao Dabing Luo Hanxing Liu | 2008 | Journal of Electroceramics (-)2008，，1： | 1 |
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