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Identification of cadmium-induced genes in maize seedlings by suppression subtractive hybridization

Quanlin DAI, Baifei HUANG, Zhongyi YANG, Jiangang YUAN, Junzhi YANG

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 449-458 doi: 10.1007/s11783-010-0250-x

Abstract: A maize variety, Huatian-1, had an unusually low translocation rate of cadmium (Cd) (59.6 mg·kg in the roots and 0.093 mg·kg in the grain) compared to 24 other varieties while being grown in soils with 16.50 mg·kg Cd. This indicates that this particular species may have special mechanisms that affect the absorption and translocation pattern of Cd. In this paper, the technique of suppression subtractive hybridization (SSH) was used to isolate and identify Cd-induced genes from Huatian-1 hydroponically ?exposed? to? 0.1 mM ?CdCl ?for? 1 h,? 12 h, 24 h, and 48 h. We found a total of 15 differentially expressed genes in the four groups; 2, 3, 4, and 6 genes were from the groups of 1 h, 12 h, 24 h, and 48 h treatment, respectively. Phospholipase mRNA, adenosine triphosphate (ATP) phosphoribosyl transferase 2, and were turned on in the maize in response to Cd stress, and it might provide new clues to explain the mechanism of maize tolerance to Cd.

Keywords： <italic>Zea maysitalic> L.     cadmium (Cd)     suppression subtractive hybridization    

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Synthesis of depsipeptides from

Hongfei CAO, Yakai FENG, Heyun WANG, Li ZHANG, Musammir KHAN, Jintang GUO

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 409-415 doi: 10.1007/s11705-011-1141-9

Abstract: By using the corresponding -amino acid sodium as initiator, -caprolactone-depsipeptides CL-Ala and CL-Leu were prepared by the reactions of -caprolactone (CL) with -alanine and -leucine, respectively, and -dioxanone-depsipeptide (PDO-Leu) was prepared by the reaction of -dioxanone (PDO) with -leucine. Two poly( -caprolactone) oligomers (PCL-Ala and PCL-Leu) of different molecular weights with depsipeptide unit were synthesized by controlling the feed ratio of -amino acid sodium and CL. The presence of the depsipeptide structure in these obtained products was confirmed by H NMR spectra and the molecular weight of the poly( -caprolactone) oligomers was measured by gel permeation chromatography (GPC). These products contain a hydroxyl group and a carboxyl group in one molecule, which means they could act as bifunctional monomers for further polymerization to prepare high molecular weight polymers. By this way, the depsipeptide unit could be introduced into the polymers and the biodegradation rates of the novel polymers could be well controlled in vivo by the tailored molecular structures.

Keywords： <italic>?italic>-caprolactone     <italic>pitalic>-dioxanone     <italic>Litalic>-alanine     <italic>Litalic>-leucine    

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In memory of Perry L. McCarty, seminal founder of Environmental Biotechnology

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1730-0

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Comments on the special issue on forestry of

John L. INNES

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 4,   Pages 502-503 doi: 10.15302/J-FASE-2017189

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Shear design of high strength concrete prestressed girders

Emad L. LABIB,Hemant B. DHONDE,Thomas T. C. HSU,Y. L. MO

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 373-387 doi: 10.1007/s11709-014-0087-7

Abstract: Normal strength prestressed concrete I-girders are commonly used as the primary superstructure components in highway bridges. However, shear design guidelines for high strength PC girders are not available in the current structural codes. Recently, ten 7.62 m (25 feet) long girders made with high strength concrete were designed, cast, and tested at the University of Houston (UH) to study the ultimate shear strength and the shear concrete contribution ( ) as a function of concrete strength ( ). A simple semi-empirical set of equations was developed based on the test results to predict the ultimate shear strength of prestressed concrete I-girders. The UH-developed set of equations is a function of concrete strength ( ), web area ( ), shear span to effective depth ratio ( / ), and percentage of transverse steel ( ). The proposed UH-Method was found to accurately predict the ultimate shear strength of PC girders with concrete strength up to 117 MPa (17000 psi) ensuring satisfactory ductility. The UH-Method was found to be not as overly conservative as the ACI-318 (2011) code provisions, and also not to overestimate the ultimate shear strength of high strength PC girders as the AASHTO LRFD (2010) code provisions. Moreover, the proposed UH-Method was found fairly accurate and not exceedingly conservative in predicting the concrete contribution to shear for concrete strength up to 117 MPa (17000 psi).

Keywords： shear design     high strength concrete     prestressed girders     full-scale tests    

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Deeply missing my career idol and role model ― Professor Perry L. McCarty

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1717-x

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Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 595-595 doi: 10.1007/s11783-012-0452-5

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Advances in Underground Construction Help Provide Quality of Life for Modern Societies

Raymond L. Sterling

Engineering 2017, Volume 3, Issue 6,   Pages 780-781 doi: 10.1016/j.eng.2017.12.006

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Comparisons in subcellular and biochemical behaviors of cadmium between low-Cd and high-Cd accumulation cultivars of pakchoi (

Meng XUE, Yihui ZHOU, Zhongyi YANG, Biyun LIN, Jiangang YUAN, Shanshan WU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 2,   Pages 226-238 doi: 10.1007/s11783-013-0582-4

Abstract: were investigated in low-Cd accumulation cultivars and high-Cd accumulation cultivars of pakchoi ( L.Cd in the form of pectate/protein complexes (extracted by 1 mol·L NaCl) played a decisive role in Cd

Keywords： cadmium (Cd)     low-Cd cultivar     pakchoi (<italic>Brassica chinensisitalic> L.)    

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A Standard for the Commissioning Process

William L. Gillis,Elizabeth A. Cudney

Frontiers of Engineering Management 2015, Volume 2, Issue 1,   Pages 39-51 doi: 10.15302/J-FEM-2015006

Abstract: The demand for commissioning services for new-building construction projects is experiencing rapid growth. Commissioning (Cx) is touted as being a quality-focused process for ensuring the owner’s project requirements (OPR) are met by design, final construction, and the operations of a building. To an owner this is just what is needed to receive a perfect building at occupancy. However, as many owners have realized, the Cx process does not guarantee the completed building will be what was expected. It should be pointed out that this is typically not caused by the Cx process, but the Cx process should or could have identified, in the early phases of the project, many of the issues that made it through to the completed building. There are a number of reasons why the Cx services received may not be optimal. Often it is poor communication and the transfer of knowledge between project teams. Cx should and can facilitate both communication and the transfer of knowledge from phase to phase. An adaptation of the quality function deployment (QFD) four-phase model can accomplish this by filling the gaps among the major Cx activities and provide a standard approach to the process. The four-phase model effectively links each of the Cx activities to each other and back to the OPR, providing a method for improved communication and knowledge transfer. This paper investigates some potential reasons for inconsistent Cx services, presents an argument for the need of a Cx standard, and proposes a potential standard.

Keywords： construction     engineering management     quality     commissioning    

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The Decarbonization of Construction—How Can Alkali-Activated Materials Contribute?

John L. Provis,Susan A. Bernal,Zuhua Zhang,

Engineering doi: 10.1016/j.eng.2023.09.014

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Mutagenesis and selective breeding of a high producing

Tian WANG, Shiru JIA, Zhilei TAN, Yujie DAI, Shuai SONG, Guoliang WANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 179-183 doi: 10.1007/s11705-012-1273-6

Abstract: Finally, one -PL-producing strain, L9, was selected.The productivity of this strain during flask fermentation was 0.77 g/L, which was 15% higher than that

Keywords： <italic>?italic>-poly-<italic>Litalic>-lysine     plasma     AHV     <italic>Streptomyces diastatochromogenesitalic>    

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Quality Function Deployment Implementation in Construction: A Systematic Literature Review

Cudney,William L. Gillis

Frontiers of Engineering Management 2016, Volume 3, Issue 3,   Pages 224-230 doi: 10.15302/J-FEM-2016036

Abstract: The construction of new buildings represents a significant investment. The goal of new building construction is to maximize value and minimize cost while staying on time and within budget. Translating customer requirements into engineering terms for new construction design is vital for a construction project to be successful. Quality function deployment has been successfully used in product development to capture the voice of the customer and translate it into engineering characteristics. Quality function deployment then carries these parameters into production and service to ensure the voice of the customer is being met with the final product. The house of quality, a tool within quality function deployment, can provide a means for comparison of owner’s project requirements and the proposed design, along with identifying how the design decisions impact meeting customer requirements and green building requirements. Quality function deployment can effectively link the project phases through design and construction and into operations and maintenance to ensure the owner’s project requirements are met with the final building. This research identifies and categorizes studies of quality function deployment applications in construction. The research method used is a systematic literature review from databases related to quality function deployment in the construction industry published in the periodicals through 2016. The principal findings of implementations, practices, and integrated approaches are then summarized. This article intends to propel further research of quality function deployment in the construction sector.

Keywords： construction     engineering management     quality function deployment     systematic review    

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Effects of iron oxide nanoparticles on phenotype and metabolite changes in hemp clones ( L.)

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1569-9

Abstract:

● Fe3O4 NPs increased the biomass and chlorophyll content of hemp clones.

Keywords： Fe3O4 nanoparticle     Hemp     Growth enhancement     THC     Metabolite    

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Purification of

Y. LIU, M. PIETZSCH, J. ULRICH

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 37-42 doi: 10.1007/s11705-013-1303-z

Abstract: All crystallizations were performed in tris-acetate buffer (50 mmol·L , pH 5.1).

Keywords： protein crystallization     <italic>Litalic>-asparaginase II     purification    

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Title Author Date Type Operation

Identification of cadmium-induced genes in maize seedlings by suppression subtractive hybridization

Quanlin DAI, Baifei HUANG, Zhongyi YANG, Jiangang YUAN, Junzhi YANG

Journal Article

Synthesis of depsipeptides from

Hongfei CAO, Yakai FENG, Heyun WANG, Li ZHANG, Musammir KHAN, Jintang GUO

Journal Article

In memory of Perry L. McCarty, seminal founder of Environmental Biotechnology

Journal Article

Comments on the special issue on forestry of

John L. INNES

Journal Article

Shear design of high strength concrete prestressed girders

Emad L. LABIB,Hemant B. DHONDE,Thomas T. C. HSU,Y. L. MO

Journal Article

Deeply missing my career idol and role model ― Professor Perry L. McCarty

Journal Article

Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

Journal Article

Advances in Underground Construction Help Provide Quality of Life for Modern Societies

Raymond L. Sterling

Journal Article

Comparisons in subcellular and biochemical behaviors of cadmium between low-Cd and high-Cd accumulation cultivars of pakchoi (

Meng XUE, Yihui ZHOU, Zhongyi YANG, Biyun LIN, Jiangang YUAN, Shanshan WU

Journal Article

A Standard for the Commissioning Process

William L. Gillis,Elizabeth A. Cudney

Journal Article

The Decarbonization of Construction—How Can Alkali-Activated Materials Contribute?

John L. Provis,Susan A. Bernal,Zuhua Zhang,

Journal Article

Mutagenesis and selective breeding of a high producing

Tian WANG, Shiru JIA, Zhilei TAN, Yujie DAI, Shuai SONG, Guoliang WANG

Journal Article

Quality Function Deployment Implementation in Construction: A Systematic Literature Review

Cudney,William L. Gillis

Journal Article

Effects of iron oxide nanoparticles on phenotype and metabolite changes in hemp clones ( L.)

Journal Article

Purification of

Y. LIU, M. PIETZSCH, J. ULRICH

Journal Article