[1]彭景勃,叶冬梅*.小叶黄杨幼苗在盐旱交互胁迫下的生理响应[J].江苏林业科技,2023,50(06):10-15.[doi:10.3969/j.issn.1001-7380.2023.06.002]
　Peng Jingbo,Ye Dongmei*.Physiological responses of Buxus Sinica var. parvifolia seedlings under salt-drought stress[J].Journal of Jiangsu Forestry Science &Technology,2023,50(06):10-15.[doi:10.3969/j.issn.1001-7380.2023.06.002]
点击复制

小叶黄杨幼苗在盐旱交互胁迫下的生理响应()
分享到：

《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第50卷
期数:
2023年06期
页码:
10-15
栏目:
试验研究
出版日期:
2023-12-31

文章信息/Info

Title:
Physiological responses of Buxus Sinica var. parvifolia seedlings under salt-drought stress
文章编号:
1001-7380（2023）06-0010-06
作者:
彭景勃 ; 叶冬梅*
内蒙古农业大学林学院，内蒙古 呼和浩特 010019
Author(s):
Peng Jingbo; Ye Dongmei*
Forestry College, Inner Mongolia Agricultural University,Hohhot 010019 ,China
关键词:
小叶黄杨; 盐旱交互胁迫; 光合作用; 生理响应; 适应机制
Keywords:
Buxus sinica var. parvifolia; Interactive stress of salt and drought;  Photosynthesis;  Physiological response;  Adaptation mechanism
分类号:
Q945.78；S687
DOI:
10.3969/j.issn.1001-7380.2023.06.002
文献标志码:
A
摘要:
为探究干旱胁迫在叠加盐胁迫条件下对小叶黄杨幼苗光合及生理特性的影响，以其扦插幼苗为材料，采用水培试验，设置16组盐、旱及交互胁迫处理，测定光合以及生理生化指标的变化，为小叶黄杨引种栽培提供理论依据。结果表明：（１）相较于干旱胁迫，小叶黄杨的生理生化特性受盐胁迫影响更大。（2）在重度干旱胁迫下，超氧化物歧化酶（SOD）、过氧化氢酶（CAT）的活性相较于对照分别增加了14.25%,20.13%，差异显著（P＜0.05）；脯氨酸（Pro）相较于对照显著增长了30.99%。（3）重度盐胁迫下，SOD，CAT的活性以及Pro含量相较于对照分别显著下降了13.67%,7.60%,27.75%（P＜0.05）。（4）在盐、旱及交互胁迫下，SOD，POD和CAT活性均表现出先升高后降低的趋势，3者之间相互协调一致。研究发现，小叶黄杨在应对干旱胁迫时，能通过调整自身生理特性来提高逆境适应能力，表现出较强的抗旱性；而重度盐胁迫会损害正常生长，盐旱互作加剧了对小叶黄杨光合作用的损害；另一方面小叶黄杨幼苗在盐和干旱的交互作用下，通过调节抗氧化酶活性、渗透调节物质来防止胁迫，表现出交互适应性。
Abstract:
In order to learn the effects of drought stress on physiological characteristics of Buxus sinica var. parvifolia seedlings under salt stress, 16 groups of salt, drought and reciprocal stresses were set up in this study. The physiological and biochemical indexes of the seedlings were measured to study the adaptation under double abiotic stress. The results showed that (1) Compared with drought stress, the physiological and biochemical characteristics of B. sinica var. parvifolia were more affected by salt stress. (2) Under severe drought stress, the activities of superoxide dismutase (SOD) and catalase (CAT) were increased by 14.25% and 20.13% compared with the control, respectively, and the differences were significant (P < 0.05). Proline (Pro) increased significantly by 30.99% compared with control. (3) The activities of SOD, CAT and Pro content under severe salt stress were significantly decreased by 13.67%, 7.60% and 27.75%, respectively, compared with the control (P<0.05). (4) Under salt, drought and reciprocal stresses, the activities of SOD, peroxidase (POD) and CAT increased first and then decreased, and the three activities were consistent with one another. The results showed that when dealt with drought stresses, B. sinica var. parvifolia could improve its adaptability to adversity by adjusting its physiological characteristics, and showed strong drought resistance. However, severe salt stress could damage the normal growth, and the salt-drought interaction intensified the damage of salt stress on photosynthesis. On the other hand, through the interaction of salt and drought, B. sinica var. parvifolia seedlings could prevent salt stress by adjusting antioxidant enzyme activity and osmotic regulatory substances under drought stress, showing cross-adaptation.

参考文献/References:

[1]张校宾.邯郸市六种木本园林植物抗旱性综合评价[D].邯郸：河北工程大学,2023.
[2]刘慧,张崇洋,刘世亮,等.干旱胁迫对屋顶绿化植物小叶黄杨叶片抗氧化特性的影响[J]. 林业与环境科学,2022,38(3):86-93.
[3]白玉娥,庞岩.小叶黄杨研究进展[J].内蒙古农业大学学报(自然科学版),2021,42(1):114-120.
[4]梁行行,陈爽,赵冰,等.7种灌木幼苗耐淹性比较研究[J].西北林学院学报,2020,35(3):61-67.
[5]余莉琳.干旱矿区生态修复土壤改良及植物选择实验[D].徐州：中国矿业大学,2014.
[6]吴强,李倩,肖华，等.西南喀斯特地区小叶黄杨与白刺花光合特性研究[J].中国饲料,2019 (9):22-28.
[7]谭雪红.5种灌木的生理特性及抗旱性的综合评价[J].东北林业大学学报,2013,41(2): 29-34.
[8]周宇涵.小叶黄杨对干旱高温胁迫的生理生化响应[J].农村实用技术,2019(3):39-40.
[9]陈珺.四种观赏植物的活性氧代谢对干旱胁迫的响应[D].杭州:浙江农林大学,2013.
[10]CASER M,SCARIOT V,GAINO W,et al.The effects of sodium chloride on the aesthetic value of Buxus spp.[J].European Journal of Horticultural Science,2013,78(4):153-159.
[11]金梦野,李小华,李昉泽,等.盐碱复合胁迫对水稻种子发芽的影响[J].中国生态农业学报(中英文),2020,28(4):566-574.
[12]肖欣怡,李霞,史飞航，等.西北地区盐碱地治理方案探讨[J].农业与技术,2021,41(14):142-145.
[13]史树德,孙亚卿,魏磊.植物生理学实验指导[M].北京：中国林业出版社,2011.
[14]黄桂华,梁坤南,周再知,等.柚木无性系苗期抗旱生理评价与选择的研究[J].中南林业科技大学学报,2018,38(5):11-17.
[15]朱秀红,李职,蔡曜琦,等.白花泡桐幼苗对盐、干旱及其交互胁迫的生理响应[J].西部林业科学,2021,50(3):135-143.
[16]蒋宇杰.植物耐盐生理机制及耐盐性研究进展[J].农业灾害研究, 2023,13(7): 20-22.
[17]耿兴敏.植物逆境交叉胁迫适应性研究进展[J].林业科技开发,2014,28(4):14-18.
[18]齐琪,马书荣,徐维东.盐胁迫对植物生长的影响及耐盐生理机制研究进展[J].分子植物育种,2020,18(8):2741-2746.
[19]马玉花.植物耐盐分子机理研究进展[J].湖北农业科学,2013,52(2):255-257,261.
[20]赵春,陈佩林,施国新.Cd（Ⅱ）离子对石龙尾生理生化特性的影响[J].淮阴师范学院学报(自然科学版),2003，2(3):241-244.
[21]吴蕾.环境胁迫对西藏飞蝗成虫取食生长和抗氧化酶系统的影响[D].成都:四川农业大学,2010.
[22]华智锐,李小玲.盐旱交叉胁迫对小麦幼苗渗透调节能力的影响[J].山西农业科学,2017,45(2):166-171.
[23]李怀伟.旱涝—低温交叉胁迫对小麦抗寒性的影响[D].哈尔滨:东北农业大学,2013.
[24]李洁,武杭菊,胡景江,等.干旱-低温交叉逆境下小麦渗透调节能力的变化与交叉适应的关系[J].干旱地区农业研究,2009,27(6):149-153.

备注/Memo

备注/Memo:
收稿日期：2023-09-29;修回日期：2023-10-11
作者简介：彭景勃（1997- ），女，硕士研究生。研究方向为森林培育。E-mail: 1172573705@qq.com
*通信作者：叶冬梅（1971- ），女，博士，副教授，硕士导师。主要研究方向为森林培育理论与技术。E-mail: yiedongmei19@sina.com
更新日期/Last Update: 2024-03-14