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Effects of mineral nutrition conditions on heat tolerance of chufa (Cyperus esculentus L.) plant communities to super optimal air temperatures in the BTLSS [Text] / E. S. Shklavtsova [et al.] // Adv. Space Res. - 2014. - Vol. 54, Is. 6. - P1135-1145, DOI 10.1016/j.asr.2014.05.031. - Cited References: 26. - The study was performed within the framework of the program of fundamental research for the Russian academies of sciences for 2013-2020, subject No. 56.1.4. . - ISSN 0273-1177. - ISSN 1879-1948

РУБ Astronomy & Astrophysics + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences
Рубрики:
LIFE-SUPPORT-SYSTEMS
   CHLOROPHYLL FLUORESCENCE
   STRESS
   WASTE
   WHEAT
   LSS
Кл.слова (ненормированные):
Bioregenerative life support system -- Cyperus esculentus L. -- Heat shock -- Mineralized human wastes -- Chlorophyll fluorescence -- Lipid peroxidation
Аннотация: The use of mineralized human wastes as a basis for nutrient solutions will increase the degree of material closure of bio-technical human life support systems. As stress tolerance of plants is determined, among other factors, by the conditions under which they have been grown before exposure to a stressor, the purpose of the study is to investigate the level of tolerance of chufa (Cyperus esculentus L.) plant communities grown in solutions based on mineralized human wastes to a damaging air temperature, 45 degrees C. Experiments were performed with 30-day-old chufa plant communities grown hydroponically, on expanded clay aggregate, under artificial light, at 690 mu mol m(-2) s(-1) PAR and at a temperature of 25 degrees C. Plants were grown in Knop's solution and solutions based on human wastes mineralized according to Yu.A. Kudenko's method, which contained nitrogen either as ammonium and urea or as nitrates. The heat shock treatment lasted 20 h at 690 and 1150 mu mol m(-2) s(-1) PAR. Chufa heat tolerance was evaluated based on parameters of CO2 gas exchange, the state of its photosynthetic apparatus (PSA), and intensity of peroxidation of leaf lipids. Chufa plants grown in the solutions based on mineralized human wastes that contained ammonium and urea had lower heat tolerance than plants grown in standard mineral solutions. Heat tolerance of the plants grown in the solutions based on mineralized human wastes that mainly contained nitrate nitrogen was insignificantly different from the heat tolerance of the plants grown in standard mineral solutions. A PAR intensity increase from 690 mu mol m(-2) s(-1) to 1150 mu mol m(-2) s(-1) enhanced heat tolerance of chufa plant communities, irrespective of the conditions of mineral nutrition under which they had been grown. (C) 2014 COSPAR. Published by Elsevier Ltd. All rights reserved.

WOS
Держатели документа:
[Shklavtsova, E. S.
Ushakova, S. A.
Shikhov, V. N.
Anishchenko, O. V.] SB RAS Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shklavtsova, E.S.; Ushakova, S.A.; Shikhov, V.N.; Anishchenko, O.V.; program of fundamental research for the Russian academies of sciences [56.1.4]

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Dietary buckwheat enhances sirtuin1 without calorie restriction / S. Pande, R. Ranjan, A. N. Shuvaev [et al.] // J. Cereal Sci. - 2020. - Vol. 94. - Ст. 103004, DOI 10.1016/j.jcs.2020.103004. - Cited References:22. - This work was supported by the Russian Foundation for Basic Research (RFBR) [Grant No. 16-06-00-439] and by the Russian Ministry of Education, Post-Doctoral Program of Project "5-100" [Grant No. M 2.2.3]. . - ISSN 0733-5210. - ISSN 1095-9963

РУБ Food Science & Technology
Рубрики:
LIFE-SPAN
   STRESS
   FLOUR
   RATS
Кл.слова (ненормированные):
Dietary buckwheat -- SIRT1 expression -- Calorie restriction -- Male wistar -- rats
Аннотация: In the present investigation, the role of dietary intervention in male Wistar rats (n = 8, 3 groups) was studied to observe absolute sirtuin 1 (SIRT1) levels (expressed as ng mg(-1) total protein) in serum, stomach, liver, and kidney. Dietary buckwheat at 30% (w/w) level of incorporation in the standard diet (Buckwheat Enriched Diet, BED) improved SIRT1 with values 0.933 +/- 0.05, 210 +/- 7, 63.26 +/- 4, and 69.89 +/- 3 in serum, stomach, liver, and kidney respectively when compared to the respective control values of 0.536 +/- 0.03, 156 +/- 23.3, 31.07 +/- 2 and 47.11 +/- 4. Moreover, BED though isocaloric to CR diet, led to weight gain (g) by 63.11 +/- 3.8, ca. 10%, and 40% higher than control (56.27 +/- 5.6) and CR (45.05 +/- 4.1) diet groups. A marked rise in Feed Efficiency Ratio (FER) by ca. 37% while a 30% decrease in Feed Conversion Ratio (FCR) was observed for the BED group which supports unexpected weight gain in rats post-dietary intervention. The results justify the superior nutritional profile of buckwheat laden with essential nutrients, essential proteins, and bioactives. In contrast, Calorie Restriction (CR) resulted in a decline of the total protein content in circulation by 19%, while reduction of total protein in stomach, liver, and kidney was estimated to be 95%, 35.2%, and 27% respectively though SIRT1 values were comparatively the highest in all the samples studied. A 30-fold enhancement of SIRT1 in stomach post CR is presumed to counter enhanced stress in gastric tissues. Therefore, mild to moderate expression of SIRT1 may confer beneficial effects such as delayed aging and stress resistance but exceedingly high SIRT1 may evoke increased oxidative stress.

WOS
Держатели документа:
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Dept Biophys, Lab Bioluminescent Biotechnol, Svobodny Prospect 79, Krasnoyarsk 660041, Russia.
Krasnoyarsk State Med Univ, Res Inst Mol Med & Pathobiochem, P Zheleznyaka 1, Krasnoyarsk 660022, Russia.
Krasnoyarsk State Med Univ, Dept Biochem Med Pharmaceut & Toxicol Chem, P Zheleznyaka 1, Krasnoyarsk 660022, Russia.
Sci Res Inst Med Problems North, P Zheleznyaka 3g, Krasnoyarsk 660022, Russia.
Fed Res Ctr Krasnoyarsk Sci Ctr SB RAS, Inst Biophys SB RAS, Akademgorodok 50-50, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Pande, Shubhra; Ranjan, Rajeev; Shuvaev, Anton N.; Malinovskaya, Natalia A.; Ryazanova, Maria; Salmina, Alla B.; Kolenchukova, Oksana A.; Kratasyuk, Valentina A.; Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [16-06-00-439]; Russian Ministry of EducationMinistry of Education and Science, Russian Federation [M 2.2.3]

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