根际温度胁迫对小麦根系形态及生理影响的研究进展

Advance of Effects of Rhizosphere Temperature Stress on Morphology and Physiology of Wheat Root

小麦根系既是水分和养分吸收的主要器官,又是多种激素、有机酸和氨基酸合成的重要场所,其生长发育关系到小麦最终产量和品质。全球气候变化下频发极端高温或低温灾害,极端气温导致极端根际温度,直接作用小麦根系并影响其生长。根据近年来国内外关于根际温度胁迫对小麦根系生长影响的研究成果,重点阐述根际温度胁迫对小麦根系形态及生理指标的影响,并针对当前小麦根系研究的主要问题和未来研究方向与前景进行了讨论,以期为小麦抗逆栽培根系调控提供理论依据。

Wheat root is not only the main organ for water and nutrient absorption, but also an important place for the synthesis of a variety of hormones, organic acids and amino acids. Its growth and development is related to the final yield and quality of wheat. Due to global climate change, extreme high or low temperature disasters occur frequently. Extreme temperature also leads to extreme rhizosphere temperature, which directly affects wheat roots and their growth. Based on the research results of rhizosphere temperature stress on wheat root growth in recent years, this paper focuses on the effects of rhizosphere temperature stress on wheat root morphology and physiological indexes. The main problems and future research directions of wheat root system were discussed in order to provide theoretical basis for wheat root regulation of stress resistant cultivation in wheat.