ВЛИЯНИЕ ХЛОРИДА КАДМИЯ (II) НА ФИЗИОЛОГИЧЕСКИЕ, МОРФОЛОГИЧЕСКИЕ И БИОХИМИЧЕСКИЕ ХАРАКТЕРИСТИКИ ПРОРОСТКОВ ЩИРИЦЫ ЗАПРОКИНУТОЙ И ЛОФАНТА ТИБЕТСКОГО

• Main Authors: СЛЕПЦОВ ИГОРЬ ВИТАЛЬЕВИЧ, ЖУРАВСКАЯ АЛЛА НИКОЛАЕВНА
• Format: Text
• Language: unknown
• Published: Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования «Ульяновская государственная сельскохозяйственная академия имени П.А.Столыпина» 2016
• Subjects: AMARANTHUS RETROFLEXUS,AGASTACHE RUGOSA,КАДМИЙ,СТРЕСС,АНТИОКСИДАНТЫ,ФЕРМЕНТЫ,ПЕРЕКИСНОЕ ОКИСЛЕНИЕ ЛИПИДОВ,AMARANTHUSRETROFLEXUS,AGASTACHERUGOSA,CADMIUM,STRESS,ANTI-OXIDANTS,ENZYMES,LIPID PEROXIDATION; Rugosa; Yakutsk
• Online Access: http://cyberleninka.ru/article/n/vliyanie-hlorida-kadmiya-ii-na-fiziologicheskie-morfologicheskie-i-biohimicheskie-harakteristiki-prorostkov-schiritsy-zaprokinutoy-i; http://cyberleninka.ru/article_covers/16946244.png

Исследовано влияние хлорида кадмия (II) в концентрациях 5, 10, 20, 40 и 80 мкМ на физиологические, морфологические и биохимические характеристики проростков щирицы запрокинутой (Amaranthus retroflexus L.) и лофанта тибетского (Agastache rugosa (Fisch. & C.A.Mey.)), в течение 30 дней наблюдения. Показано, что наряду с известным механизмом токсического действия ионов кадмия на физиологические характеристики, связанного с модификацией сульфгидрильных групп белков, влияющих на клеточное деление апикальных клеток растений, существенный вклад на физиологическое развитие проростков вносит прооксидантное действие Cd+2 и антиоксидантное низкомолекулярных антиоксидантов. Nowadays, one of the most vital problems of the mankind is pollution of the atmosphere, plants, soil and water by heavy metals. Cadmium is one of the most widely-spread highly toxic pollutants of soil. Research of influence of cadmium chloride(II) on physiological, morphological and biochemical characteristics of green amaranth (Amaranthusretroflexus L.) sprouts and giant-hyssop (AgastacherugosaFisch.) sprouts was carried out in climate chamber BINDERKMF (Germany). Seeds of A. retroflexusand A. rugosawere picked up on the territory of Botanical gardens of Institute of biological problems of cryolithic zone SD RAS (Yakutsk city). Assessment criteria of physiological parametres were quality of sprouts with two, three and four leaves, as for morphological length of rootlet and shoot. Biochemical parametres were assessed by concentration of malondialdehyde (MDA), amount of low molecular anti-oxidants (I LMAO), activity of superoxide dismutase (SOD) and peroxidase (POX). It is assumed that, along with widely-known mechanism of toxic influence of cadmium ions on physiological and morphological characteristics, connected with modification of sulfhydryl protein groups, which take part in the process of cell division of growing apical plant cells (root, sprout ), pro-oxidant effect of Cd+2 and anti-oxidant effect (mainly due to low molecular anti-oxidants) also have great influence. It is stated that, activation of POX and SOD in cells of A. retroflexus and A. rugose sprouts, which was caused by increase of superoxide residue and peroxides (hydrogen and organic), evidently, isn't the main toxic factor of CdCl2 intoxication, because these parametres didn't correlate with changes of physiological and morphological characteristics of sprouts.