|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | SEUSS and PIF4 Coordinately Regulate Light and Temperature Signaling Pathways to Control Plant Growth显示文摘 | Junling Huai Xinyu Zhang dialong Li Tingting Ma Ping Zha Yanjun Jing Rongcheng Lin | 2018 | Molecular Plant2018，11，7： | 15 |
| 2 | The role of light in regulating seed dormancy and germination^FA显示文摘Seed dormancy is an adaptive trait in plants. Breaking seed dormancy determines the timing of ger-mination and is, thereby essential for ensuring plant sur-vival and agricultural production. Seed dormancy and the subsequent germination are controlled by both internal cues (mainly hormones) and environmental signals. In the past few years, the roles of plant hormones in regulating seed dormancy and germination have been uncovered. However, we are only beginning to understand how light signaling pathways modulate seed dormancy and inter-action with endogenous hormones. In this review, we summarize current views of the molecular mechanisms by which light controls the induction, maintenance and re-lease of seed dormancy, as well as seed germination, by regulating hormone metabolism and signaling pathways. | Liwen Yang Shuangrong Liu Rongcheng Lin | 2020 | Journal of Integrative Plant Biology2020，62，9： | 11 |
| 3 | The SWi2/SNF2 Chromatin-Remodeling ATPase BRAHMA Regulates Chlorophyll Biosynthesis in Arabidopsis显示文摘叶绿素生合成在植物为叶绿体开发和光合作用是批评的。尽管在叶绿素 biosynthetic 小径的反应大部分被知道了,很少对这条小径的规章的机制被知道。在这研究,我们发现象梵天(BRM ) 的 RNA 干扰转基因的幼苗一样的黑暗成年的猛烈、击倒的异种,它编码 SWI2/SNF2 改变染色质的 ATPase,有的更高的 greening 率,积累的更少 protochlorophyllide,和生产更少比 Arabidopsis,野类型的植物在轻暴露之上做了的反应的氧种类。NADPH:protochlorophyllide oxidoreductase A (PORA ) 的表示, PORB,和 PORC,在叶绿素生合成催化关键步,在 brm 异种被增加。我们发现那 BRM 身体上与 bHLH 抄写因素交往 PHYTOCHROME 因素 1 交往了(PIF1 ) 通过它的 N 终端领域。而且,我们证明 BRM 直接被招募到 PORC,然而并非 PORA 和 PORB 的 cis 规章的区域,至少,部分,以一种 PIF1 依赖的方式和 histone H3 离氨酸的水平,在 PORC loci 的 4 tri-methylation (H3K4me3 ) 在 brm 异种被增加。一起拿,我们的数据显示改变染色质的酶 BRM 通过与 PIF1 交往调制 PORC 表示,提供植物在转变期间由调整叶绿素生合成从的新奇规章的机制对自造营养物质的生长不是自养。 | Dong Zhang Yuhong Li Xinyu Zhang Ping Zha Rongcheng Lin | 2017 | Molecular Plant2017，10，1： | 10 |
| 4 | A pair of light signaling factors FHY3 and FAR1 regulates plant immunity by modulating chlorophyll biosynthesis显示文摘Light and chloroplast function is known to affect the plant immune response; however, the underlying mechanism remains elusive. We previously demonstrated that two light signaling factors, FAR-RED ELONGATED HYPOCOTYL 3(FHY3)and FAR-RED IMPAIRED RESPONSE 1(FAR1), regulate chlorophyll biosynthesis and seedling growth via controlling HEMB1 expression in Arabidopsis thaliana. In this study, we reveal that FHY3 and FAR1 are involved in modulating plant immunity. We showed that the fhy3 far1 double null mutant displayed high levels of reactive oxygen species and salicylic acid(SA) and increased resistance to Pseudomonas syringae pathogen infection. Microarray analysis revealed that a large proportion of pathogen-related genes, particularly genes encoding nucleotide-binding and leucine-rich repeat domain resistant proteins, are highly induced in fhy3 far1. Genetic studies indicated that the defects of fhy3 far1 can be largely rescued by reducing SA signaling or blocking SA accumulation, and by overexpression of HEMB1, which encodes a 5-aminolevulinic acid dehydratase in the chlorophyll biosynthetic pathway.Furthermore, we found that transgenic plants with reduced expression of HEMB1 exhibit a phenotype similar to fhy3 far1.Taken together, this study demonstrates an important role of FHY3 and FAR1 in regulating plant immunity, through integrating chlorophyll biosynthesis and the SA signaling pathway. | Wanqing Wang Weijiang Tang Tingting Ma De Niu Jing Bo Jin Haiyang Wang Rongcheng Lin | 2016 | Journal of Integrative Plant Biology2016，58，1： | 8 |
| 5 | Arabidopsis FHY3 and FAR1 Regulate Light-Induced myo-Inositol Biosynthesis and Oxidative Stress Responses by Transcriptional Activation of MIPS1显示文摘myo-Inositol-1-phosphate synthase (MIPS ) 催化肌醇生合成的限制的步并且在植物生长和开发有关键角色。响应应力, MIPS1 的抄写被导致,肌醇或肌醇衍生物的生合成被未知机制支持。这里,我们发现轻发信号蛋白质 FAR-RED 伸长了 HYPOCOTYL3 (FHY3 ) 和它的相当或相同的事物 FAR-RED 损害了 RESPONSE1 (FAR1 ) 由激活 MIPS1 的抄写调整导致光的肌醇生合成和氧化压力回答。FHY3 和 FAR1 的混乱在黑暗光的转变,早熟的叶老朽,和增加的敏感以后引起了导致光的细胞死亡到氧化应力。房间死亡 phenotypeof fhy3 far1 异种种的由水杨酸酸 3-HYDROXYLASE 的 overexpression 的累积大部分压制了的水杨酸酸(SA ) 的减小,建议那调停 FHY3 、调停 FAR1 的房间死亡依赖于 SA。而且,定序的染色质 immunoprecipitation 的比较分析和 microarray 结果表明 FHY3 和 FAR1 直接指向 MIPS1 和 MIPS2。fhy3 far1 异种种显示出的严重地减少的 MIPS1/2 抄本层次和减少的肌醇层次。相反地, MIPS1 的组成的表示部分救了肌醇内容,引起了 SA 生合成基因的减少的抄本层次,并且阻止了在 fhy3 far1 的氧化应力。一起拿,我们的结果显示轻发信号蛋白质 FHY3 和 FAR1 直接绑 MIPS1 的倡导者激活它的表示并且从而支持肌醇生合成阻止导致光的氧化应力和 SA 依赖的房间死亡。 | Lin Ma Tian Tian Rongcheng Lin Xing-Wang Deng Haiyang Wang Gang Li | 2016 | Molecular Plant2016，9，4： | 7 |
| 6 | PIF1 and RVE1 form a transcriptional feedback loop to control light-mediated seed germination in Arabidopsis^FA显示文摘The phytochrome B (phyB) photoreceptor plays a major role that inputs light signals to regulate seed dormancy and germination. PHYTOCHROME-INTERACTING FACTOR1 (PIF1) is a key transcription factor repressing phyB-mediated seed germination, while REVEILLE1 (RVE1) factor functions as a curial regulator in controlling both seed dormancy and ger-mination. However, the relationship between the PIF1-and RVE1-modulated signaling pathways remains mostly unknown. Here, we find that PIF1 physically interacts with RVE1. Genetic analysis indicates that RVE1 inhibition on seed germination requires PIF1;re-ciprocally, the repressive effect of PIF1 is partially de-pendent on RVE1. Strikingly, PIF1 and RVE1 directly bind to the promoter and activate the expression of each other. Furthermore, PIF1 and RVE1 coordinately regulate the transcription of many downstream genes involved in abscisic acid and gibberellin pathways. Moreover, PIF1 enhances the DNA-binding ability and transcriptional repression activity of RVE1 in regulating GIBBERELLIN 3-OXIDASE2, and RVE1 promotes PIF1's DNA-binding ability in modulating ABSCISIC ACID-INSENSITIVE3 expression. Thus, this study demon-strates that PIF1 and RVE1 form a transcriptional feedback loop that coordinately inhibits seed germi-nation, providing a mechanistic understanding of how phyB-mediated light signal is transduced to the seeds. | Liwen Yang Zhimin Jiang Yanjun Jing Rongcheng Lin | 2020 | Journal of Integrative Plant Biology2020，62，9： | 7 |
| 7 | Performance of ecological restoration in an impaired coral reef in the Wuzhizhou Island, Sanya, China显示文摘Coral restoration is becoming popular to help restoring degraded coral reefs.However,few studies have tried to monitor the long-term recovery of coral reefs,which makes it diffi cult to assess the performance of the restoration.We monitored the growth of three transplanted Acropora corals and naturally-attached Pocillopora damicornis on artifi cial reefs(ARs)from October 2014 to September 2018 during which there were several attacks of typhoons.Results show that two staghorn Acropora species had the highest growth rates(11.0–12.1 cm/a),followed by table coral A.divaricate(5.6 cm/a)and P.damicornis(4.8 cm/a).A linear growth pattern was found for the three Acropora species;the pattern gradually slowed in P.damicornis.There was a strong interspecifi c competition for space among the corals on ARs,and it led to the sharply declined occurrence of slow-growing P.darmicornis colonies in 2017.Coral recovery was successful at the Wuzhizhou Island and quickly increased AR complexity.However,the ARs made of metal frames fail to resist the direct attack from a catastrophic typhoon.Therefore,concrete and environmentalfriendly materials should be used in future restoration.This study is the fi rst report on long-term monitoring and assessment of coral reef restoration in China.The results off er future guide of reef restoration for impaired coral reefs in regions easily aff ected by typhoons. | Xinqing ZHENG Yuanchao LI Jilin LIANG Rongcheng LIN Daoru WANG | 2021 | Journal of Oceanology and Limnology2021，39，1： | 6 |
| 8 | The central circadian clock proteins CCA_1 and LHY regulate iron homeostasis in Arabidopsis显示文摘Circadian clock is the endogenous timekeeping machinery that synchronizes an organism's metabolism, behavior, and physiology to the daily lightdark circles, thereby contributing to organismal fitness.Iron(Fe) is an essential micronutrient for all organisms and it plays important roles in diverse processes of plant growth and development. Here, we show that, in Arabidopsis thaliana, loss of the central clock genes,CIRCADIAN CLOCK ASSOCIATED 1(CCA_1) and LATE ELONGATED HYPOCOTYL(LHY), results in both reduced Fe uptake and photosynthetic efficiency, whereas CCA_1 overexpression confers the opposite effects. We show that root Fe(III) reduction activity, and expression of FERRIC REDUCTION OXIDASE 2(FRO_2) and IRON-REGULATED TRANSPORTER 1(IRT_1) exhibit circadian oscillations, which are disrupted in the cca_1 lhy double mutant. Furthermore,CCA_1 directly binds to the specific regulatory regions of multiple Fe homeostasis genes and activates their expression. Thus, this study established that, in plants,CCA_1 and LHY function as master regulators that maintain cyclic Fe homeostasis. | Gang Xu Zhimin Jiang Haiyang Wang Rongcheng Lin | 2019 | Journal of Integrative Plant Biology2019，61，2： | 6 |
| 9 | Targeting Proteins for Degradation by Arabidopsis COP1: Teamwork Is What Matters显示文摘Arabidopsis COP1 (组成的 Photomorphogenic 1 ) 由在原子核充当 E3 ubiquitin 连接酶在黑暗定义关键 represser ofphotomorphogenesis,并且为很多个支持 photomorphogenesis 因素的指向的降级负责,包括 phyA, HY5, LAF1,和 HFR1。光敏电阻器的多重班的轻激活(包括 phytochromes 和秘密成员铬) 使 COP1 失去活性并且减少它的原子丰富,允许表明中介到 promotephotomorphogenic 开发的这些断然代理的光的累积。最近的研究建议 Arabidopsis COP1 联合矿泉蛋白质(SPA1-SPA4 ) 的一个家庭形成生理的联盟者活跃 COP1 矿泉 E3 ubiquitin 连接酶建筑群。重叠的这些 COP1 矿泉建筑群戏和在在不同轻条件和成年人下面调整 seedlingphotomorphogenesis 的不同功能种生长。进一步,在在有 CDD 的生物化学的水平的音乐会的 COP1-SPAcomplexes 幕(COP10, DET1, andDDB1 ) 建筑群和 COP9signalosome (CSN ) 到安排相片形态发生的压抑。 | Rongcheng Lin Haiyang Wang | 2007 | Journal of Integrative Plant Biology2007，49，1： | 5 |
| 10 | Seasonal abundance and distribution of pelagic tunicates (Chordata: Thaliacea) in the central South China Sea显示文摘 | LIN Mao LIN Rongcheng | 2006 | Acta Oceanologica Sinica2006，25，3： | 4 |
| 11 | The Evening Complex and the Chromatin-Remodeling Factor PICKLE Coordinately Control Seed Dormancy by Directly Repressing DOG1 in Arabidopsis显示文摘Primary seed dormancy is acquired during seed development and maturation,which is important for plant fitness and survival.DELAY OF GERMINATION1(DOG1)plays a critical role in inducing seed dormancy.DOG1 expression increases rapidly during seed development,but the precise mechanism underlying this process remains elusive.In this study,we showed that mutants with a loss or reduced function of the chromatin-remodeling factor PICKLE(PKL)exhibit increased seed dormancy.PKL associates with DOG1 chromatin and inhibits its transcription.We found that PKL physically interacts with LUX ARRHYTHMO(LUX),a member of the evening complex(EC)of the circadian clock.Furthermore,LUX directly binds to a specific coding sequence of DOG1,and DOG1 acts genetically downstream of PKL and LUX.Mutations in either LUX or EARLY FLOWERING3(ELF3)encoding another member of the EC led to increased DOG1 expression and enhanced seed dormancy.Surprisingly,these phenotypes were abolished when the parent plants were grown under continuous light.In addition,we observed that loss of function of either PKL or LUX decreased H3K27me3 levels at the DOG1 locus.Taken together,our study reveals a regulatory mechanism in which EC proteins coordinate with PKL to transmit circadian signals for directly regulating DOG1 expression and seed dormancy during seed development. | Ping Zha Shuangrong Liu Yang Li Tingting Ma Liwen Yang Yanjun Jing Rongcheng Lin | 2020 | Plant Communications2020，1，2： | 3 |
| 12 | PHYTOCHROME-INTERACTING FACTORS Interact with the ABA Receptors PYL8 and PYL9 to Orchestrate ABA Signaling in Darkness显示文摘PHYTOCHROME-INTERACTING FACTORS(PIFs)are a group of basic helix-loop-helix transcription factors that can physically interact with photoreceptors,including phytochromes and cryptochromes.It was previously demonstrated that PIFs accumulated in darkness and repressed seedling photomorphogenesis,and that PIFs linked different photosensory and hormonal pathways to control plant growth and development.In this study,we show that PIFs positively regulate the ABA signaling pathway during the seedling stage specifically in darkness.We found that PIFs positively regulate ABI5 transcript and protein levels in darkness in response to exogenous ABA treatment by binding directly to the G-box motifs in the ABI5 promoter.Consistently,PIFs and the G-box motifs in the ABI5 promoter determine ABI5 expression in darkness,and overexpression of ABI5 could rescue the ABA-insensitive phenotypes of pifq mutants in the dark.Moreover,we discovered that PIFs can physically interact with the ABA receptors PYL8 and PYL9,and that this interaction is not regulated by ABA.Further analyses showed that PYL8 and PYL9 promote PIF4 protein accumulation in the dark and enhance PIF4 binding to the ABI5 promoter,but negatively regulate PIF4-mediated ABI5 activation.Taken together,our data demonstrate that PIFs interact with ABA receptors to orchestrate ABA signaling in darkness by controlling ABI5 expression,providing new insights into the pivotal roles of PIFs as signal integrators in regulating plant growth and development. | Lijuan Qi Shan Liu Cong Li Jingying Fu Yanjun Jing Jinkui Cheng Hong Li Dun Zhang Xiaoji Wang Xiaojing Dong Run Han Bosheng Li Yu Zhang Zhen Li William Terzaghi Chun-Peng Song Rongcheng Lin Zhizhong Gong Jigang Li | 2020 | Molecular Plant2020，13，3： | 3 |
| 13 | Reversible SUMOylation of FHY1 Regulates Phytochrome A Signaling in Arabidopsis显示文摘In response to far-red light(FR),FAR-RED ELONGATED HYPOCOTYL 1(FHY1)transports the photoactivated phytochrome A(phyA),the primary FR photoreceptor,into the nucleus,where it initiates FR signaling in plants.Light promotes the 26S proteasome-mediated degradation of FHY1,which desensitizes FR signaling,but the underlying regulatory mechanism remains largely unknown.Here,we show that reversible SUMOylation of FHY1 tightly regulates this process.Lysine K32(K32)and K103 are major SUMOylation sites of FHY1.We found that FR exposure promotes the SUMOylation of FHY1,which accelerates its degradation.Furthermore,we discovered that ARABIDOPSIS SUMO PROTEASE 1(ASP1)interacts with FHY1 in the nucleus under FR and facilitates its deSUMOylation.FHY1 was strongly SUMOylated and its protein level was decreased in the asp1-1 loss-of-function mutant compared with that in the wild type under FR.Consistently,asp1-1 seedlings exhibited a decreased sensitivity to FR,suggesting that ASP1 plays an important role in the maintenance of proper FHY1 levels under FR.Genetic analysis further revealed that ASP1 regulates FR signaling through an FHY1-and phyA-dependent pathway.Interestingly,We found that continuous FR inhibits ASP1 accumulation,perhaps contributing to the desensitization of FR signaling.Taken together,these results indicate that FR-induced SUMOylation and ASP1-dependent deSUMOylation of FHY1 represent a key regulatory mechanism that fine-tunes FR signaling. | Gao-Ping Qu Hong Li Xiao-Li Lin Xiangxiong Kong Zi-Liang Hu Yin Hua Jin Yu Liu Hang-Lin Song Dae Heon Kim Rongcheng Lin Jigang Li Jing Bo Jin | 2020 | Molecular Plant2020，13，6： | 3 |
| 14 | Advances in Chinese Arctic and subarctic research in marine biology and ecology with emphasis on the Pacific Arctic sector显示文摘The Arctic is one of the most sensitive regions that respond through feedback to global climate changes. Climatic, hydrological and ecological changes in the Arctic are clear evidence of global warming. In 2012 and 2014, the 5 th and 6 th Chinese National Arctic Research Expeditions undertook studies in the Bering Sea, the Arctic Ocean(including the Chukchi Sea), and the Norwegian Sea. These studies provided us with a better understanding of the marine biology and ecology in the Arctic and subarctic regions, particularly in the Pacific Arctic sector. Rapid changes observed in the Arctic environment include the shrinking of cold-water masses in the Bering Sea in the summer, and elevated water temperatures promoting phytoplankton blooms, leading to an increase in phytoplankton transferred to higher trophic levels. As a result, the transfer efficiency of organic matter toward the bottom weakened, leading to a reduction in benthic biomass. This is consistent with expectations that the overall carbon and energy flux will ultimately switch from the dominant mode of sea ice–algae–benthos to one of phytoplankton–zooplankton. Influenced by Pacific water inflow, fluvial runoff and melting sea ice, the Chukchi Sea exhibited different responses to various environmental changes. Interactions between water masses led to other interannual ecological shifts. With the increase in sea ice melt and sunlight in the central region of the Arctic Ocean, the relative abundance of heterotrophic bacteria is expected to increase, and play a vital role in the Arctic microbial loop. | LI Hai LIN Longshan SONG Puqing LI Yuan ZHANG Ran LIN Heshan LIN Rongcheng HAO Qiang ZHANG Fang ZHANG Guangtao | 2017 | Advances in Polar Science2017，28，2： | 2 |
| 15 | Amphipods fail to suppress the accumulation of Ulva lactuca biomass in eutrophic Yundang Lagoon显示文摘The Gross growth efficiency(GGE) is defined as the amount of consumer carbon produced relative to the amount of prey ingested in a given time interval. In population ecology, it can be considered as an index for the ability of a consumer to convert the biomass of food into its population production. In this study, it was firstly applied to estimate the role of amphipods grazing in the biomass dynamics of macroalgae(Ulva lactuca) in Yundang Lagoon(a subtropical eutrophic coastal lagoon, Xiamen City, China). It was found that amphipods were the dominant group(82.2%–98.7%) in the benthic assemblage, in which five amphipod species(Corophium uenoi, Ampithoe valida, Grandidierella japonica, Grammaropsis laevipalmata and Caprella panantis) were observed in the lagoon. However, only A. valida significantly consumed U. lactuca among these amphipod species. A series of experiments were conducted to estimate the consumption of U. lactuca by A. valida. It was suggested that the monthly secondary production(P) of A. valida using size frequency method ranged from 2.39 to 13.68 g/m2. GGE of A. valida exponentially reduced with body size and was closely associated with water temperature. Therefore, GGE equation for different months using the temperature recorded during the field investigation was fitted. The monthly consumption of U. lactuca was figured out to be 86.7–1 549.0 g/m2 by the sum of consumption(P/GGE) by A. valida at different size, accounting for 2.0%–37.5% of U. lactuca production. It indicates that the grazing effect of A. valida did play a role in reducing the accumulation of U. lactuca biomass when A. valida was abundant, but it finally fails to limit the U. lactuca growth in Yundang Lagoon. Low abundance of A. valida and high nutrient loading may be two major reasons for the outbreak of U. lactuca bloom in the lagoon. | ZHENG Xinqing HUANG Lingfeng WANG Qian LIN Rongcheng | 2014 | Acta Oceanologica Sinica2014，33，12： | 1 |
| 16 | Abundance and distribution of meiofauna in the Chukchi Sea显示文摘The metazoan meiofauna in the Chukchi Sea were collected from seven shallow water stations(depths ranging 46 to 52 m) and five deep sea stations(depths ranging between 393 and 2 300 m) during the 4th Chinese National Arctic Research Expedition in 2010. The results showed that abundance of meiofauna was higher in shallow water sediments(average of 2 445 ind./(10 cm2)) than in deep sea sediments(407.06 ind./(10 cm2)). A UNIANOVA test for difference between the two different regions was highly significant(F=101.15, p<0.01). Nematodes were numerically dominant, representing(96.6±4.6)% of the total meiofaunal abundance at the shallow water stations and(98.90±1.42)% at deep sea stations. The number of higher taxonomic groups and abundance of meiofauna were higher at Stas CC1, CC4, and R06 near the Bering Strait and the continent, than at the rest of the shallow water and deep sea stations. The primary factors causing the differences were concentrations of nutrients P and Si of bottom seawater(R=0.831, p<0.003), followed by depth(R=-0.655, p<0.05) and sand fractions of sediments(R=0.632, p <0.05). The numbers of meiofauna on the 65 μm and 32 μm sieves were significantly higher than those on the rest of the screens. Differences in numbers of meiofauna retained on screens with different mesh openings were highly significant among all sampling stations(F=31.60, p<0.01). The highest numbers of individuals on screens with 32 μm mesh openings were found at deep sea stations. The number of meiofauna in the top 0–1, 1–2, and 2–4 cm segments constituted 84.4% of the total and was significantly higher than those in the bottom 4–6 and 6–10 cm segments(F=15, p<0.01). | LIN Rongcheng HUANG Dingyong GUO Yuqing CHANG Yu CAO Yinkun WANG Jianjia | 2014 | Acta Oceanologica Sinica2014，33，6： | 1 |
| 17 | Research on red tide occurrences using enclosed experimental ocosystem in west Xiamen harbor, china -Relationship between nutrients and red tide occurrence显示文摘 | Lin Yu Lin Rongcheng | 2000 | Chinese Journal of Oceanology and Limnology2000，18，3： | 1 |
| 18 | Photobiology:Light signal transduction and photomorphogenesis^FA显示文摘Light is crucial for plants, not only because of photosynthesis, but also because of photomorphogenesis.As one of the most important environmental cues, light influences multiple responses in plants, including seed germination, seedling de-etiolation,shade avoidance, phototropism, stomata and chloroplast movement, circadian rhythms, and flowering time. | Hongtao Liu Rongcheng Lin Xing Wang Deng | 2020 | Journal of Integrative Plant Biology2020，62，9： | 1 |
| 19 | Influence of the concentration ratio of nitrogen to phosphorus on the growth and interspecies competition of two red tide algae显示文摘The growth and interspecies competition of two red tide algal species Thalassiosira pseudonana Hasle et Heimdal and Gymnodinium sp.were studied under different concentration ratios of nitrogen to phosphorus,and the algal batch culture experiments were conducted.The physiological and biochemical indexes were measured periodically,including the maximum comparing growth rate,relative growth rate,average double time and chlorophyll a concentration.The results showed that when the concentration ratio of nitrogen to phosphorus was 16:1,the maximum comparing growth rate,relative growth rate and chlorophyll a concentration of Thalassiosira pseudonana all reached the highest,and average double time was the shortest.This implied that the optimal concentration ratio of nitrogen to phosphorus of Thalassiosira pseudonana is 16:1.When the concentration ratio of nitrogen to phosphorus was 6:1,the maximum comparing growth rate,relative growth rate and the chlorophyll a concentration of Gymnodinium sp.reached the highest,and average double time was the shortest,so the optimal concentration ratio of nitrogen to phosphorus of Gymnodinium sp.is 6:1.From the growth curves as indicated both in the cell density and the chlorophyll a concentration,it is suggested that the influence of concentration ratio of nitrogen to phosphorus on the chlorophyll a concentration and the cell density are almost the same.Different concentration ratios of nitrogen to phosphorus had weak influence on community succession and the competition between the two algae.Gymnodinium sp.may use the phosphorus in vivo for growth,so it is important to pay attention to the concealment of phosphorus,in order to avoid the outbreak of red tide.On the basis of the importance of nitrogen and phosphorus and the ratio of their concentration,the possible outbreak mechanism of red tide of the two algae was also discussed. | KANG Yanyu LIANG Junrong GAO Yahui LIN Rongcheng GAO Hua XING Xiaoli MA Jie LUO Qiaoqi | 2007 | Acta Oceanologica Sinica2007，26，5： | 1 |
| 20 | Effects of live rock on removal of dissolved inorganic nitrogen in coral aquaria显示文摘Maintaining stable water quality is one of the key processes for recirculating coral aquaculture. Traditional aquarium systems which mainly utilized a nitrification of nitrifying bacteria attached to the surface of massive artificial filter material are difficult to maintain the oligotrophic conditions necessary for coral aquaculture. This study investigated the removal effects of dissolved inorganic nitrogen(ammonia and nitrate) by live rock(LR), a key component in the 'Berlin system' coral aquarium. The expression levels of bacterial functional genes, AOA3,amo A and nos Z, were measured on the exterior and interior of LR. The nitrifying and denitrifying bacterial abundance on LR was quantified and the nitrogen nutrient regulatory effects of LR were evaluated. The results demonstrated that LR mainly removed ammonium(NH_4^+) from the water with a mean efficiency of 0.141 mg/(kg·h), while the removal of nitrate(NO_3~–) was not significant. Bacterial diversity analysis showed that ammonia-oxidizing bacteria(AOB) were the most common bacteria on LR, which accounted for 0.5%–1.4% of the total bacterial population, followed by denitrifying bacteria, which accounted for 0.2% of the total population, and the ammonia-oxidizing archaea(AOA) were the least common type(<0.01%). The low abundance of denitrifying bacteria may be responsible for the poor nitrate(NO_3~–) removal of LR. Thus, other biological filtration methods are needed in coral aquaria to control nitrates generated from nitrification or biological metabolism. | LI Yan ZHENG Xinqing YANG Xiaozhou OU Dangyun LIN Rongcheng LIU Xinming | 2017 | Acta Oceanologica Sinica2017，36，12： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员