| 多胺及其合成抑制剂对干旱胁迫下杏苗生理指标的影响 |
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| 引用本文： | 王尚堃,杜红阳. 多胺及其合成抑制剂对干旱胁迫下杏苗生理指标的影响[J]. 南方农业学报, 2016, 47(9): 1475-1479. DOI: 10.3969/jissn.2095-1191.2016.09.1475 |
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| 作者姓名： | 王尚堃 杜红阳 |
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| 作者单位： | 周口职业技术学院 农牧工程学院,河南 周口,466001周口师范学院 生命科学与农学学院,河南 周口,466001 |
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| 基金项目： | 国家自然科学基金项目(31271627) |
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| 摘 要： | 【目的】探讨喷施多胺及其合成抑制剂甲基乙二醛双脒基腙(MGBG)对干旱胁迫杏苗生理指标的影响,为杏抗旱栽培提供参考依据。【方法】以金太阳杏1年生嫁接苗为试材,设处理1(对照,CK)、处理2[干旱(Drought, D.)胁迫]、处理3[(CK+亚精胺(Spermidine,Spd)]、处理4(D.+Spd)、处理5(D.+MGBG)和处理6(D.+MGBG+ Spd)共6个处理,每2 d处理1次,处理30 d后分别测定并分析各处理叶片丙二醛(MDA)、可溶性糖、游离脯氨酸(Pro)含量、叶绿素总含量及光合参数。【结果】干旱胁迫下,杏苗叶片MDA、可溶性糖和Pro含量增加,叶绿素总含量和光合参数均降低;喷施1.0 mmol/L Spd的杏苗叶片MDA含量、可溶性糖含量、Pro含量、叶绿素总含量及大部分光合参数提高;在干旱胁迫下喷施1.0 mmol/L Spd可使杏苗的MDA含量、可溶性糖含量、Pro含量、叶绿素总含量及大部分光合参数显著提高(P<0.05);在干旱胁迫下喷施1.0 mmol/L MGBG可促进杏苗叶片MDA含量、Pro含量、叶绿素总含量及大部分光合参数降低。【结论】喷施1.0 mmol/L Spd可增强金太阳杏苗对干旱胁迫环境的适应能力,可在杏规模化栽培中应用。
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| 关 键 词： | 杏幼苗 干旱胁迫 多胺 甲基乙二醛双脒基腙 渗透调节物质 光合特性 |
Effects of polyamine and its synthetic inhibitors on physiological indexes of Armeniaca vulgaris Lam. seedlings under drought stress |
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| WANG Shang-kun,DU Hong-yang. Effects of polyamine and its synthetic inhibitors on physiological indexes of Armeniaca vulgaris Lam. seedlings under drought stress[J]. Journal of Southern Agriculture, 2016, 47(9): 1475-1479. DOI: 10.3969/jissn.2095-1191.2016.09.1475 |
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| Authors: | WANG Shang-kun DU Hong-yang |
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| Abstract: | [Objective]The present experiment was conducted to study effects of polyamine and its synthetic inhibitor methylglyoxal bis-guanylhydrazone(MGBG) on physiological indexes of Armeniaca vulgaris Lam. Jintaiyang seedlings un-der drought stress, in order to provide reference basis for anti-drought cultivation. [Method]One-year grafted seedlings of A. vulgaris Lam. Jintaiyang were taken as experimental materials. Six treatments including treatment 1(CK),treatment 2(D.), treatment 3[CK+spermine(Spd)],treatment 4(D.+Spd),treatment 5(D.+MGBG) and treatment 6(D.+MGBG+Spd) were applied. The seedlings were sprayed one time every two days. Contents of malondialdehyde(MDA),soluble sugar and pro-line(Pro) and chlorophyll, photosynthetic parameters in leaves of A. vulgaris Lam. Jintaiyang seedlings were measured af-ter being treated for 30 days. [Result]Under drought stress, contents of MDA,soluble sugar and Pro in A. vulgaris Lam. Jintaiyang seedling leaves increased, and total content of chlorophyll and photosynthetic parameters decreased. Spd (1.0 mmol/L) treatment improved contents of MDA,soluble sugar and Pro, total content of chlorophyll and most photosynthetic parameters in A. vulgaris Lam. Jintaiyang seedling leaves. Spd(1.0 mmol/L) treatment under drought stress increased sig-nificantly contents of MDA, soluble sugar and Pro, total content of chlorophyll and most photosynthetic parameters in A. vulgaris Lam. Jintaiyang seedling leaves(P<0.05). MGBG(1.0 mmol/L) treatment under drought stress decreased contents of MDA,soluble sugar and proline,total content of chlorophyll and most photosynthetic parameters in A. vulgaris Lam. Jin-taiyang seedling leaves. [Conclusion]Spd(1.0 mmol/L) treatment can improve A. vulgaris Lam. Jintaiyang seedlings adap-tation capacity to drought stress, which can be applied in large-scale cultivation. |
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| Keywords: | Armeniaca vulgaris Lam. seedling drought stress polyamine methylglyoxal bis-guanylhydrazone os-motic adjustment substances photosynthetic characteristics |
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