Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

[Text] / K. Y. Biel [et al.] // Protoplasma. - 2010. - Vol. 245, Is. 01.04.2013. - P49-73, DOI 10.1007/s00709-010-0135-7. - Cited References: 136. - Supported in part by the Competitive Research Grants Office, U.S. Department of Agriculture (Grant Nos. 96-35100-3167 and 98-35100-6106 to JNN). IRF and GNN were supported by Sr. Fulbright Scholar Awards. Thanks to Professors Andrew A. Benson (Scripps Institute of Oceanography, La Jolla, California, USA), Edwin A. Cossins (University of Alberta, Edmonton, Canada), and William H. Outlaw, Jr. (Florida State University, Tallahassee, Florida, USA) for the valuable comments on the manuscript, and to Vincent R. Franceschi (Electron Microscopy Center, Washington State University, Pullman, Washington, USA; deceased) for useful discussions about calcium oxalate. Portions of the work were preliminarily reported (Bil' et al. 2003a, b) . - 25. - ISSN 0033-183XРУБ Plant Sciences + Cell Biology

Аннотация: The localization of the key photoreductive and oxidative processes and some stress-protective reactions within leaves of mesophytic C(3) plants were investigated. The role of light in determining the profile of Rubisco, glutamate oxaloacetate transaminase, catalase, fumarase, and cytochrome-c-oxidase across spinach leaves was examined by exposing leaves to illumination on either the adaxial or abaxial leaf surfaces. Oxygen evolution in fresh paradermal leaf sections and CO(2) gas exchange in whole leaves under adaxial or abaxial illumination was also examined. The results showed that the palisade mesophyll is responsible for the midday depression of photosynthesis in spinach leaves. The photosynthetic apparatus was more sensitive to the light environment than the respiratory apparatus. Additionally, examination of the paradermal leaf sections by optical microscopy allowed us to describe two new types of parenchyma in spinach-pirum mesophyll and pillow spongy mesophyll. A hypothesis that oxaloacetate may protect the upper leaf tissue from the destructive influence of active oxygen is presented. The application of mathematical modeling shows that the pattern of enzymatic distribution across leaves abides by the principle of maximal ecological utility. Light regulation of carbon metabolism across leaves is discussed.

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Держатели документа:
[Nishio, John N.] Calif State Univ Chico, Biocompatible Plant Res Inst, Coll Nat Sci, Chico, CA 95929 USA
[Biel, Karl Y.
Fomina, Irina R.
Nazarova, Galina N.] Russian Acad Sci, Inst Basic Biol Problems, Pushchino 142290, Moscow Region, Russia
[Biel, Karl Y.
Fomina, Irina R.] Biosphere Syst Int Fdn, Oro Valley, AZ 85755 USA
[Soukhovolsky, Vladislav G.
Khlebopros, Rem G.] Russian Acad Sci, Int Sci Ctr Organism Extreme States Res, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia
[Soukhovolsky, Vladislav G.] Russian Acad Sci, Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
[Khlebopros, Rem G.] Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Biel, K.Y.; Fomina, I.R.; Nazarova, G.N.; Soukhovolsky, V.G.; Khlebopros, R.G.; Nishio, J.N.

/ R. Khaydarov, O. Gapurova, M. Abdukhakimov [et al.] // Emerg. Mater. - 2022, DOI 10.1007/s42247-021-00330-2. - Cited References:31. - The SEM and TEM analysis was carried out in the SFU Joint Scientific Center under the support of the Ministry of Science and Higher Education of the Russian Federation (#FSRZ-2020-0011). . - Article in press. - ISSN 2522-5731. - ISSN 2522-574XРУБ Materials Science, Multidisciplinary

Аннотация: The growth of bacteria and fungi on a nanofiltration (NF) membrane is known to reduce its permeability and lifetime and increase overall energy use. Over the last decade, application of silver nanoparticles (AgNPs) has shown to present a strong potential in preventing biofouling of NF membrane processes. The paper deals with a novel facile method developed to in situ incorporate nanosilver stabilized with the polyhexamethylene biguanide hydrochloride (PHMB) onto the commercial NF membrane surface. The scanning electron microscopy (SEM) investigations confirmed a uniform distribution of AgNPs on the surface of NF membrane although AgNPs tend to agglomerate into nano-sized colloidal clusters. Our results showed that AgNPs had little impact on the performance of the NF membrane, including salt rejection and water permeation properties. To evaluate the antibacterial properties of nanocomposite membranes, a "time-kill" analysis, a microbiological technique for measuring the change in a population of microorganisms under the impact of a specific sample, has been used against representatives of Gram-positive and Gram-negative bacteria. Inductively coupled mass spectrometry (ICP-MS) was used to study kinetics of Ag release from modified NF membrane. Leaching rates of Ag were low that will possibly result in long-established antimicrobial and antifungal properties. The present research offers a potential for its further use as a new type of modified NF membrane mitigating biofouling.

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Держатели документа:
Acad Sci Uzbek, Inst Nucl Phys, 1 Xuroson, Tashkent 100214, Uzbekistan.
JSS Acad Higher Educ & Res, Dept Pharmacol, JSS Coll Pharm, Ooty 643001, Tamil Nadu, India.
Siberian Fed Univ, 79 Svobodny Ave, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Akademgorodok 50-38, Krasnoyarsk 5038, Russia.
Fed Res Ctr KSC SB RAS, Sukachev Inst Forest, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Khaydarov, Renat; Gapurova, Olga; Abdukhakimov, Murodjon; Sadikov, Ilkham; Garipov, Ilnur; Krishnamurthy, Praveen Thaggikuppe; Zharkov, Sergey M.; Zeer, Galina M.; Abolentseva, Polina A.; Prudnikova, Svetlana, V; Evgrafova, Svetlana Y.; SFU Joint Scientific Center; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0011]