钙对低温胁迫下扁穗牛鞭草根保护酶活性的影响
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摘要
本研究将生长一致的3个扁穗牛鞭草采用不同浓度CaCl_2溶液处理后,对其进行4℃低温胁迫,研究不同浓度外源Ca~(2+)对各材料根保护酶活性的影响。结果表明,在低温胁迫下,扁穗牛鞭草根内SOD、POD、CAT活性变化趋势总体表现为先升高后降低,适宜浓度的Ca~(2+)能提高扁穗牛鞭草根内保护酶的活性,提高其抗寒性,10mmol/L CaCl_2处理能提高材料1和2扁穗牛鞭草根内保护酶活性,15mmol/L CaCl_2处理能显著提高材料3扁穗牛鞭草根内的保护酶活性。
Three species of consistent growth of Hemarthria compressa plants which was dip in the different concentration of CaCl_2 solutions on the condition of 4℃,experiment to indicate the roots antioxidant enzymes activities changes in different exogenous calcium. The results showed that: The changes of SOD,POD,CAT activities in root were increased firstly and then decreased at low temperature stress.Suitable concentrations of Ca~(2+) could increase the materials cold resistance by the increasing SOD,POD and CAT activities. Antioxidant enzyme activities in root of materials 1 and 2 were significant improved by dip in the Ca~(2+) at 10 mmol/L,and 15 mmol/L of the materials 3.
Three species of consistent growth of Hemarthria compressa plants which was dip in the different concentration of CaCl_2 solutions on the condition of 4℃,experiment to indicate the roots antioxidant enzymes activities changes in different exogenous calcium. The results showed that: The changes of SOD,POD,CAT activities in root were increased firstly and then decreased at low temperature stress.Suitable concentrations of Ca~(2+) could increase the materials cold resistance by the increasing SOD,POD and CAT activities. Antioxidant enzyme activities in root of materials 1 and 2 were significant improved by dip in the Ca~(2+) at 10 mmol/L,and 15 mmol/L of the materials 3.
引文
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[15]冀乙萌,惠杜娟,李瑞梅,等.钙对低温胁迫下木薯抗寒相关生理指标的影响[J].热带作物学报,2012,33(5):894-898.
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[18]罗新义,冯昌军,李红,等.低温胁迫下肇东苜蓿SOD、脯氨酸活性变化初报[J].中国草地,2004,26(4):79-80.
[19]杨蕊,张睿鹂,杨文莉,等. CaCl_2对北海道黄杨叶片抗冷生理的影响[J].北京农学院学报,2011,26(4):23-26.
[2]杨春华,张新全,李向林,等.牛鞭草属种质资源及育种研究[J].草业学报,2004,13(2):7-12.
[3]郭彦军,尹亚丽.南方生态草地建植与管理[M].贵阳:贵州人民出版社,2006. 90-93.
[4]严林,陈艳宇,苟文龙,等.西南地区牛鞭草种质资源抗寒性的初步鉴定[J].四川畜牧兽医,2013,(10):24-27.
[5]张健,钟华平,等.重庆市主推牧草栽培利用技术[M].北京:中国农业科学技术出版社,2010. 176.
[6]Blackman P G,Davise W J. Root communication in maize plants of the effects of soil drying[J]. J. Exp. Bot,1985,(36):39-48.
[7]刘秀茹,葛晓光,等.地温及营养面积对番茄秧苗生育及素质的影响[J].沈阳农业大学学报,1988,19(3):29-36.
[8]罗仓学,李洪元,等.甜椒幼苗不同生长期地温的研究[J].中国蔬菜,1991,(2):11-14.
[9]刘玉冬.根区温度对黄瓜幼苗生长和光合特性的影响[J].华北农学报,2004,19(1):86-88.
[10]Rosenthal R N,Woodbridge C G. Root temperature and nutrient levels of chrysanthemum shoots[J]. Hort Science,1973,8(1):26-27.
[11]王月胜.不同苜蓿品种根系特征及其抗寒性关系的研究[D].兰州:甘肃农业大学,2008.
[12]李美茹,刘鸿先,王以柔,等.水稻幼苗冷锻炼过程中钙的效应[J].植物学报,1996,38(9):635-742.
[13]张化生. Ca~(2+)与钙调素拮抗剂对辣椒幼苗抗冷性的影响[D].兰州:甘肃农业大学,2007.
[14]胡丽涛.钙和钙效应剂对低温胁迫下小麦生理生化特性的影响[D].重庆:西南大学,2010.
[15]冀乙萌,惠杜娟,李瑞梅,等.钙对低温胁迫下木薯抗寒相关生理指标的影响[J].热带作物学报,2012,33(5):894-898.
[16]陈少裕.膜脂过氧化对植物细胞的伤害[J].植物生理学通讯,1991,27(2):84-90.
[17]武维华.植物生理学[M].北京:科学出版社,2003.188-189.
[18]罗新义,冯昌军,李红,等.低温胁迫下肇东苜蓿SOD、脯氨酸活性变化初报[J].中国草地,2004,26(4):79-80.
[19]杨蕊,张睿鹂,杨文莉,等. CaCl_2对北海道黄杨叶片抗冷生理的影响[J].北京农学院学报,2011,26(4):23-26.