Author: Sibgatullin, Timur A ; Sterkhova, Kseniya A ; Timofeeva, Olga A ; Gogolev, Yuri V ; Alexandrov, Evgeniy A ; Vorob'ev, Vladimir N ; Chevela, Vladimir V ; Gorshkov, Vladimir Y

In our study, the rare earth element ytterbium (Yb³⁺) was demonstrated to affect water exchange in roots of Zea mays seedlings. Herewith, the overall membrane permeability (P_d) increased. The P_d increase was determined by aquaporin activity but not the membrane lipid component since the closure of aquaporin channels due to low intracellular pH abolished the positive effect of Yb³⁺ on P_d. Additionally, the expression level of aquaporin genes ZmPIP2;2, ZmPIP2;6 and ZmTIP2;2 was increased when plants were grown in the presence of Yb³⁺. Our results indicate that previously described positive influence of rare earth metals on plant growth and productivity may be mediated (at least partially) by the modification of the plant hydraulic system.

01 Aug 2011·Wei sheng wu xue bao = Acta microbiologica Sinica

[Isolation and identification of a Bacillus amyloliquefaciens YB-3 against Rhizoctonia solani].

Article

Author: Niu, Yongchun ; Wang, Haisheng ; Zhu, Xiaofei ; Zhang, Xiaoxia ; Hu, Yuansen ; Yan, Yanchun

OBJECTIVEAn antagonistic bacterial strain YB-3 against Rhizoctonia solani was isolated from soils.METHODSAntagonistic strains were isolated by a reporter strain method. YB-3 was identified based on morphology observation, physiological and biochemical characterizations, Biolog, G + C content and 16S rDNA sequence analysis. The antagonistic spectrum and the properties of the inhibitor produced by Bacillus amyloliquefaciens YB-3 against plant pathogenic fungi and bacteria were investigated by means of plate two-way cultivation and disc diffusion method.RESULTSThe strain YB-3 against Rhizoctonia solani was identified as Bacillus amyloliquefaciens. The antagonistic results showed that it had distinctively inhibitive effects on 14 pathogenic fungi and 7 bacteria. In addition, it also had inhibitive effects on strains from genus Bacillus to which YB-3 belongs. Antagonistic properties of B. amyloliquefaciens YB-3 was thermostable, acid resistant, and protease sensitive.CONCLUSIONBacillus amyloliquefaciens YB-3 was isolated and characterized which had distinctively inhibitive effects on Rhizoctonia solani and had broad-spectrum, highly efficient to plant pathogens.

15 Feb 2011·Optics LettersQ2 · PHYSICS & ASTROPHYSICS

10% Yb^3+-Lu_2O_3 ceramic laser with 74% efficiency

Q2 · PHYSICS & ASTROPHYSICS

Article

Author: Villalobos, Guillermo ; Hunt, Michael ; Baker, Colin ; Frantz, J. ; Lutz, Austin ; Miklos, Fritz ; Sanghera, Jas ; Aggarwal, Ishwar ; Sadowski, Bryan ; Shaw, Brandon ; Kim, Woohong

We demonstrate laser oscillation at 1080 nm with more than 16 W of output power and with an optical-to-optical slope efficiency of up to 74% using a 10% Yb3+ doped Lu2O3 ceramic made by hot pressing. This represents the highest output power and efficiency obtained for a Yb3+ doped Lu2O3 ceramic and demonstrates the feasibility for power scaling.

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Indication	Highest Phase	Country/Location	Organization	Date
Solid tumor	Discovery	South Korea	Pierre Fabre SA	27 Oct 2023
Solid tumor	Discovery	South Korea	YBiologics, Inc.	27 Oct 2023

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