干旱复水后4份偃麦草渗透调节物质的响应

草业学报 ›› 2009, Vol. 18 ›› Issue (5): 52-57.

干旱复水后4份偃麦草渗透调节物质的响应

孙宗玖,李培英,阿不来提,陈乐宁

新疆农业大学草业与环境科学学院新疆草地资源与生态自治区重点实验室, 新疆乌鲁木齐 830052

收稿日期:2008-11-27 出版日期:2009-10-20 发布日期:2009-10-20
作者简介:孙宗玖(1975-),男,内蒙古敖汉人,副教授,博士。E-mail:nmszj@21cn.com
基金资助:
新疆高校科研计划项目(XJEDU2006S18、XJEDU2007G02)及新疆草地资源与生态自治区重点实验室开放项目(XJDX0209-2007-01)资助

Osmotic adjustment substance responses of four Elytrigia repens re-watered after drought stress

SUN Zong-jiu, LI Pei-ying, Abulaiti, CHEN Le-ning

College of Pratacultural and Environmental Science, Xinjiang Agricultural University, Key Laboratory of
Grassland Resource and Ecology of Xinjiang, Urumqi 830052, China

Received:2008-11-27 Online:2009-10-20 Published:2009-10-20

摘要/Abstract

摘要： 用盆栽法研究了干旱复水后4份偃麦草种质资源对水分短缺的生理响应。结果表明,干旱复水后土壤含水量呈下降趋势,且复水后0,5,10,15 d间土壤含水量差异显著(P<0.05);复水后偃麦草叶片水分饱和亏缺基本呈上升趋势,可溶性蛋白、脯氨酸及游离氨基酸均呈“先降低后上升”趋势,可溶性糖则呈下降趋势;游离氨基酸、脯氨酸与可溶性糖间存在负相关关系,且游离氨基酸与可溶性糖间相关性极显著(P<0.01)。综合评价认为,4份偃麦草抗旱性强弱顺序为E22>E5>E1>E16,且当土壤水分含量低于39.47%时,偃麦草开始受到干旱胁迫,需要进行及时灌溉。

Abstract: The physiological responses to water shortage of four E. repens re-watered after drought stress was studied in a pot experiment. Soil water content showed a decreasing trend with a significant (P<0.05) difference in the soil water content after 0, 5, 10, and 15 days of re-watering following drought stress. After re-watering, the leaf water saturation deficit of E. repens increased, while the contents of soluble protein, proline, and free amino acid initially decreased but then increased. The soluble carbohydrate content decreased. There was a negative correlation between free amino acids, proline and soluble carbohydrate, and it was significant (P<0.01) between soluble carbohydrate and free amino acid. By comprehensive analysis, the sequence of drought resistance of E. repens materials was E22>E5>E16>E1. When the soil water content reached 39.47%, E. repens began to suffer drought stress and irrigation was needed.

中图分类号:

孙宗玖,李培英,阿不来提,陈乐宁. 干旱复水后4份偃麦草渗透调节物质的响应[J]. 草业学报, 2009, 18(5): 52-57.

SUN Zong-jiu, LI Pei-ying, Abulaiti, CHEN Le-ning. Osmotic adjustment substance responses of four Elytrigia repens re-watered after drought stress[J]. Acta Prataculturae Sinica, 2009, 18(5): 52-57.

参考文献

[1]赵炳祥,陈佐忠,胡林. 草坪蒸散研究进展. 生态学报,2003,23(1):148-157.
[2] 苏德荣.干旱区草坪的水分管理. 草原与草坪,2000,(4):26-28.
[3] 卢少云,陈斯平,陈斯曼,等. 三种暖季型草坪草在干旱条件下脯氨酸含量和抗氧化酶活性的变化. 园艺学报,2003,30(3):303-306.
[4]周兴元,曹福亮,刘国华. 两种暖季型草坪禾草对土壤持续干旱胁迫的生理反应. 草业学报,2004,13(1):84-88.
[5] 周兴元,曹福亮,陈国庆. 四种暖季型草坪草几种生理指标与抗旱性的关系研究. 草原与草坪,2003,(4):29-32.
[6] Hanson A D, Nelsen C E, Pedesrsen A R, et al. Capacity for proline accumulation during water stress in barley and its implication for drought resistance. Crop Science, 1979,19:489-493.
[7] 王玉刚,阿不来提,齐曼.两狗牙根品种对干旱胁迫反应的差异.草业学报,2006,15(4):58-64.
[8] 万开军,武高林,史晓霞,等.草坪草对干旱胁迫的反应与调节研究进展. 草业科学,2006,23(8):97-102.
[9] Huang B R. Nutrient accumulation and associated root characteristics in response to drought stress in tall fescue cultivars. Hort Science,2001,36(1):148-152.
[10] 孙铁军,苏日古嘎,马万里,等. 10 种禾草苗期抗旱性的比较研究.草业学报,2008,17(4):42-49.
[11]李培英,孙宗玖,阿不来提. 偃麦草种质资源抗旱性评价初步研究.中国草地学报,2008,30(3):59-64.
[12] 肖文一.北方型优良草坪植物——偃麦草.中国草地,1989,(4):78-80.
[13] 孟林,张国芳. 优良的饲用坪用水土保持兼用植物——偃麦草.草原与草坪,2003,(4):16-18.
[14] 孙宗玖,阿不来提,石定燧,等.新疆野生偃麦草研究初报.见:陈佐忠,白史且.中国草学会草坪专业委员会第六届全国会员代表大会及第九次学术研讨会论文汇编.北京:中国农业出版社, 2004.
[15] 武菊英,滕文军,王庆海,等.耐旱多年生观赏草春季观赏性评价.华北农学报,2006,21(1):129-132.
[16] 张耿,高洪文,王赞,等. 偃麦草属植物苗期耐盐性指标筛选及综合评价. 草业学报,2007,16(4):55-61.
[17] 鲍士旦. 土壤农化分析(第三版). 北京:中国农业出版社,2000.
[18] 李合生. 植物生理生化实验原理和技术. 北京:高等教育出版社,2002.
史玉炜,王燕凌,李文兵,等. 水分胁迫对刚毛柽柳可溶性蛋白、可溶性糖和脯氨酸含量变化的影响. 新疆农业大学学报,2007,30(2):5-8.
[19]赵福庚,孙诚,刘友良. 盐胁迫激活大麦幼苗脯氨酸合成的鸟氨酸途径. 植物学报,2001,43(1):36-40.
[20] 高吉寅. 国外抗旱性筛选方法的研究. 国外农业科技,1983,(7):12-15.
[21] 葛体达,隋方功,张金政,等. 玉米根、叶质膜透性和叶片水分对土壤干旱胁迫的反应. 西北植物学报,2005,25(3):507-512.
[22] Marshall J, Rutledge R,Blumwald E,et al. Reduction in turgid water volumein jack pine,white spruce and black spruce in response to drought and paclobutrazol. Tree Physiology,2000,20:701-707.
[23] 苏日古嘎,孙铁军,武菊英,等. 干旱胁迫对禾草苗期抗旱性特征的影响. 中国草地学报,2007, 29(3):56-60.
[24] 杨鑫光,傅华,牛得草. 干旱胁迫下幼苗期霸王的生理响应. 草业学报,2007,16(5):107-112.
[25] Wang S M,Wan C G,Wang Y R. The characteristics of Na⁺, K⁺ and free praline distribution in several drought resistant plants of the Alxa Desert, China. Journal of Arid Environments,2004, 56:525-539.
[26] Rashmi P, Agarwai R M, Jeevaratam K, et al. Osmotic stress induced alteration in rice (Oryza sativa L.)and recovery on stress release. Plant Growth Regulation,2004, 42:79-87.
[27] 李岩,潘海春,李德全. 抗旱性不同的玉米品种在土壤干旱及复水过程中的生理差异. 浙江大学学报(农业与生命科学版),2002,28(3):249-254.
[28] 李树华,许兴,米海莉,等. 水分胁迫对牛心朴子植物生长及渗透调节物质积累的影响. 西北植物学报,2003,23(4):592-596.