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| 硼和氯化钠复合胁迫对小麦幼苗的影响 |
| Combined Effects of Boron and NaCl on Wheat Seedlings |
| 投稿时间：2015-04-23 |
| DOI：10.13254/j.jare.2015.0114 |
| 中文关键词: 硼毒害 氯化钠 小麦 复合胁迫 |
| 英文关键词: boron toxicity NaCl wheat combined stress |
| 基金项目:国家自然科学基金项目(31370519);天津市应用基础与前沿技术研究计划项目(14JCYBJC22700) |
| 作者 | 单位 | E-mail | | 甄梅楠 | 天津师范大学, 天津市动植物抗性重点实验室, 天津 300387
南开大学环境污染过程与基准教育部重点实验室, 天津市城市生态环境修复与污染防治重点实验室, 天津 300071 | | | 代政 | 南开大学环境污染过程与基准教育部重点实验室, 天津市城市生态环境修复与污染防治重点实验室, 天津 300071 | | | 常璨 | 南开大学环境污染过程与基准教育部重点实验室, 天津市城市生态环境修复与污染防治重点实验室, 天津 300071 | | | 马成仓 | 天津师范大学, 天津市动植物抗性重点实验室, 天津 300387 | | | 刘春光 | 南开大学环境污染过程与基准教育部重点实验室, 天津市城市生态环境修复与污染防治重点实验室, 天津 300071 | liuchunguang@nankai.edu.cn |
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| 中文摘要: |
| 以盆栽小麦幼苗为供试植物,设定培养基质硼浓度分别为0、50、100 mg·kg-1,氯化钠浓度分别为0、1、2 g·kg-1,研究了硼和盐复合胁迫对植物生长的影响。结果表明,硼和氯化钠的单独胁迫均能显著抑制小麦生长;硼浓度为50 mg·kg-1时,氯化钠加重了硼对小麦生长的抑制;硼浓度为100 mg·kg-1时,氯化钠缓解了硼对小麦生长的抑制。硼和氯化钠的复合胁迫以及高硼胁迫使根冠比显著增大,氯化钠抑制了小麦对硼的吸收。综合来看,当硼胁迫较严重时,盐胁迫可以促进小麦增大根冠比和减少硼吸收来抵御硼毒害。 |
| 英文摘要: |
| To investigate the combined effects of boron (B) and NaCl on the growth of wheat, a pot experiment was conducted using wheat (Triticum aestivum Linn.) seedlings. Boron concentrations of culture medium were set as 0, 50 mg·kg-1 and 100 mg·kg-1, and NaCl concentrations were 0, 1 g·kg-1 and 2 g·kg-1. The results showed that both boron and NaCl could significantly inhibit wheat growth. At 50 mg B·kg-1, NaCl aggravated growth inhibition caused by boron. At 100 mg B·kg-1, however, NaCl alleviated the inhibition caused by boron. The combined stress of boron and NaCl significantly increased the root to shoot ratio of wheat. NaCl inhibited the uptake of boron by wheat. It suggests that under severe boron stress, NaCl is able to alleviate boron toxicity in wheat by increasing root to shoot ratio and reducing boron uptake. |
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