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首页> 外文期刊>Ukrainian Biochemical Journal >Crassula genus plants response to temperature stress depends on anatomical structure and antioxidant system
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Crassula genus plants response to temperature stress depends on anatomical structure and antioxidant system

机译：渡船植物对温度应激的反应取决于解剖结构和抗氧化系统

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Plant adaptation to climate conditions of certain territories has emerged within the course of evolution, shows at all organizational levels from morphological-anatomical to biochemical and is embedded into the plant genes. Survival of plants in such conditions as rapid temperature drops and rises in the range of 20?°C or more depends on their biochemical defense system’s ability to quickly respond to such stress, as well as on the plant’s structural features. Therefore, our goal was to analyze changes of biochemical parameters under conditions of abrupt hyperthermia in four species of Crassula Linne genus and to establish the connection between their anatomical and morphological features and the peculiarities of the biochemical reactions. Plants of Crassula brevifolia Harvey, Crassula lanuliginosa Harvey, Crassula muscosa Linne and Сrassula perfoliata var. minor (Haworth) G.D. Rowley species were held in air thermostats at 40 °C and 50 °C for 3 h, the control temperature being 26 °C. Stress response was analyzed by malondialdehyde content, superoxide dismutase and peroxidase activity and pigments content. Additionally, anatomical structure of the leaves was investigated. Antioxidant response to short-term high temperature varied in different species of the Crassula genus by its directionality and intensity, and depended on the anatomical features of the plant. The additional protective mechanisms were involved in the least heat-resistant plants, such as increased carotenoids and flavonoids contents. More powerful SOD and peroxidase activities under rapid heating in plants with more effective protection at the anatomical level were showed.
机译：植物适应某些领土的气候条件已经出现在进化过程中，以各种组织水平从形态学解剖到生化和嵌入植物基因。在这种条件下植物的存活率随着快速的温度下降，并且在20°C或更大范围内上升取决于其生化防御系统快速应对这种压力的能力，以及植物的结构特征。因此，我们的目标是分析四种裂解林恩属的突然热疗条件下生化参数的变化，并建立其解剖和形态学特征与生物化学反应的特性之间的联系。 Crassula Brevifolia Harvey，Crassula Lanuliginosa Harvey，Crassula Muscosa Linne和Сrassulaperfoliata var。次要（Haworth）G.D.罗利物种在40℃和50℃下在空气恒温器中保持3小时，控制温度为26°C。通过丙二醛含量，超氧化物歧化酶和过氧化物酶活性和颜料含量分析应激反应。另外，研究了叶子的解剖结构。抗氧化剂对短期高温的反应，其方向性和强度不同种类的不同种类，并取决于植物的解剖学特征。附加的保护机制参与了最低耐热的植物，例如增加的类胡萝卜素和类黄酮含量。显示出在植物中快速加热的强大强大的SOD和过氧化物酶活性，在解剖学水平上具有更有效的保护。

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