LU Jie-chun,MOU Bao-min,ZHENG Dian-feng,et al.Effects of 5-aminolevulinic Acid on Biomass and Physiological Characteristics of Soybean Seedlings Under Saline-alkali Stress[J].Soybean Science,2020,39(01):84-89.[doi:10.11861/j.issn.1000-9841.2020.01.0084]
5-氨基乙酰丙酸对盐碱胁迫下大豆苗期生物量及生理特性的影响
- Title:
- Effects of 5-aminolevulinic Acid on Biomass and Physiological Characteristics of Soybean Seedlings Under Saline-alkali Stress
- 文献标志码:
- A
- 摘要:
- 为研究5-氨基乙酰丙酸对大豆苗期盐碱胁迫的缓解效应,本研究以大豆品种合丰50为材料,采用盆栽方法,研究了40 mg·L-1的5-氨基乙酰丙酸拌种对盐碱胁迫下苗期大豆生长发育的影响。结果表明:与正常情况相比,盐碱胁迫抑制大豆生长:大豆生物积累量、叶片相对含水量和叶绿素含量分别降低了32.69%、9.9%和14.0%。与盐碱胁迫条件相比,5-氨基乙酰丙酸处理能有效缓解生物量、叶片相对含水量和叶绿素含量的降低,超氧化物歧化酶、过氧化物酶、过氧化氢酶和脯氨酸含量分别提高了13.3%、23.2%、23.0%和56.0%,相对电导率降低了3.08%。研究表明,5-氨基乙酰丙酸能缓解盐碱胁迫对大豆幼苗的损伤,提高大豆耐盐碱性。
- Abstract:
- In order to study the effect of 5-aminolevulinic acid on saline-alkali stress in soybean seedlings, a pot experiment was conducted to study the effects of 5-aminolevulinic acid seed dressing on the growth and development of soybean seedlings under saline-alkali stress with Hefeng 50 as the experimental material and 40 mg·L-1 as the dosage. The results showed that compared with normal conditions, saline-alkali stress inhibited soybean growth, soybean bioaccumulation, leaf relative water content and chlorophyll content decreased by 32.69%, 9.9% and 14.0%, respectively. Compared with saline-alkali stress conditions, 5-aminolevulinic acid treatment can effectively alleviate the decrease of biomass, leaf relative water content and chlorophyll content, superoxide dismutase, peroxidase, catalase and proline. The content increased by 13.3%, 23.2%, 23.0% and 56.0%,respectively, and the relative conductivity decreased by 3.08%.In summary,5-aminolevulinic acid can alleviate the damage of soybean seedlings caused by saline-alkali stress and improve the saline-alkali tolerance of soybean.
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备注/Memo
收稿日期:2018-12-07