BULETINUL ИЗВЕСТИЯ JOURNAL

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Buletinul AŞM. Ştiinţele vieţii. Nr. 3(318) 2012 Abstracts All compounds produced have been tested as inhibitors of human leukaemia (HL-60) cells growth. N-(2,4-dimethylphenyl)-2-(thiophene-3-ylmethylene) hydrazinecarbothioamide and N-(2,4-dimethylphenyl)-2-(2-hydroxybenzylidene) hydrazinecarbothioamide have been found to be the most antiproliferative active agents among those obtained in this study. 7 references, 2 fi gures. 2 schemes, 1 table. Key words: N-(2,4-dimethylphenyl) hydrazinecarbothioamide – azomethines – antiproliferative – leukaemia Received September 17, 2012 UDC: 581.1.03:581.14 MODIFICATION OF FUNCTIONAL INTERRELATIONS BETWEEN OF ZEA MAYS L. PLANT ORGANS IN DROUGHT CONDITIONS. Ştefîrţă Anastasia, Melenciuc M., Buceaceaia Svetlana, Brânză Lilia, Aluchi N. // Buletinul Academiei de Ştiinţe a Moldovei. Ştiinţele vieţii.. 2012, No 3 (318), p. 66-77. It was demonstrated that water and oxidative stress, conditioned by drought, causing disruptions in the functionally interrelations of the organs as consequence of differences in the degree of water’s status change, oxidative distructions and change in the activity of antioxidative enzymes in plant organs. Roots are particularly affected by the impact of the drought, while stems represent an area with relatively stable water status and have, probably, a protective function of generative organs meristem. The assumption was confi rmed that water is a factor involved in adjusting the plant functional activity, contributes to maintaining the coordinate’s relations between organs and fulfi lls, along with other factors, the integration function both at the cellular and organism level. 33 references, 1fi gure, 4 tables. Keywords: water status – oxidative stress – antioxidative enzymes – organs – plants – correlative links. Received July 12, 2012 UDC: 635 : 519.8 СONTROL OF SOIL HUMIDITY AND PRODUCTION PROCESS IN TOMATO CULTIVATION. Botnari Vasile. // Buletinul Academiei de Ştiinţe a Moldovei. Ştiinţele vieţii.. 2012, No 3 (318), p. 78-88. A decisive role in plant humidity provision belongs to precipitation, the share of which in the conditions without irrigation was 83%. The coeffi cient of water use varies widely and depends on the biological characteristics of individual varieties and weather conditions, on the moisture reserves in soil, the amount of irrigation water and the magnitude of infi ltration. The formation of one ton of standard tomato fruits without irrigation required 86 m 3 . Increased availability of water from 70 to 80% of fi eld capacity increased from the smallest water consumption by 30-40 m 3 /t of production, reducing the effi ciency of irrigation water use. Modeling is the most economical way of research and promotes the synthesis of already existing knowledge and their use for the development of agriculture technology solutions. 21 references, 4 tables, 3 fi gures Keyword: Soil - humidity - irrigation - plants - tomatoes - climate – simulation Received October 22, 2012 UDC:582.1 THE MANIFESTATION OF THE WHEAT ( Triticum aestivum L.) ROOTS RELATIVE GROWTH RATE AND THERMOTOLERANCE UNDER THE INFLUENCE OF HEAT SHOCK. Dascaliuc A., Cicalova V., Ralea T. // Buletinul Academiei de Ştiinţe a Moldovei. Ştiinţele vieţii.. 2012, No 3 (318), p. 89-96. The relative growth rate of wheat roots after exposure of germinated seeds to different 200
Buletinul AŞM. Ştiinţele vieţii. Nr. 3(318) 2012 Abstracts doses of heat shock (HS) was determined. Based on the parameters of growth, the doses of HS were divided into four different areas. They corresponded to the specifi c parameters that characterized the inhibition and restoration of roots growth rate in the period after applying the HS. Suppression of roots growth after HS can be characterized by the activation energy (A), according to the Arrhenius equation. The value of A specifi cally increases with increasing the temperature of HS. Determination of relative growth rate after applying the critical doses of HS is of particular interest, as their values correlated with wheat genotype thermotolerance. The parameters of the critical doses of HS, necessary for determining wheat genotypes thermotolerance, can be appreciated only after analyzing the changes of the growth rate in response to varying temperatures (intensive factor) and the durations (extensive factor) of HS. 15 references, 4 fi gures Keywords: hexaploid wheat varieties - relative growth rate - heat shock - activation energy - thermotolerance. Received October 29, 2012 UDC: 581.17:1-036:526+502 THE INFLUENCE OF INSUFFICIENT WATER PROVISION AND INCREASED SOIL BICARBONATE CONTENT ON SOME INDICES OF SOYA WATER STATUS AND PRODUCTIVITY. Harciuc O.A., Chirilov A.F., Cozmic R.A., Chirilova E.N., Mitina T. // Buletinul Academiei de Ştiinţe a Moldovei. Ştiinţele vieţii.. 2012, No 3 (318), p. 96-105. Based on the experimental fi ndings, a pattern of the changes in root and leaf water status and plant productivity of soya (cv. Bucuria) has been determined at a single and repeated action of humidity insuffi ciency and increased soil bicarbonate content. At the background of short term drought during the fi rst half of vegetation, the elevated soil bicarbonate content increases the content of symplastic (intracellular) water in roots, decreases the water potential and relative turgescence of soya leaves. A repeated drought event during the period of seed fulfi llment (as well as an increased soil bicarbonate content at the background of the fi rst drought event) leads to a further reduction in the content of both symplastic and apoplastic water in leaves, a signifi cant decrease in their water potential and relative turgescence. A increased soil bicarbonate content reduces the share of the economically useful part (seeds) in the total dry matter of soya plants and the effi ciency of water utilization by the plant, especially at the background of a repeated soil drought. 26 references, 6 tables, 1 fi gure Keywords: Soya – root and leaf water status – productivity – humidity insuffi ciency – bicarbonate salination. Received October 29, 2012 UDC: 577.21:004.78 / 001.8 THE METHODOLOGY OF APPLICATION OF MICROARRAY EXPERIMENTS METADATA IN SCIENTIFIC HYPOTHESIS ELABORATION. Duca Maria, Leviţchi Alexei, Martea Rodica, Abduşa Daniela, Dragomir Lidia. // Buletinul Academiei de Ştiinţe a Moldovei. Ştiinţele vieţii.. 2012, No 3 (318), p. 105-112. A comparative study of microarray gene expression data is an effective way to develop hypotheses regarding candidate gene function underlying molecular mechanisms of normal and/or pathological biological processes. Also, it is important to identify microarray datasets, which offer the data and information necessary for hypothesis elaboration. Thus, a methodology of metadata usage is proposed for identifi cation of microarray experiments regarding candidate gene detection, susceptible to gibberellin treatment in Arabidopsis plants. 16 references, 1 table, 3 fi gures Key words: gene candidate – gibberellin – metadata - microarray Received November 02, 2012 201
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