[1]王贝贝,徐旭,赵艳,等.植物生长调节剂对花后渍水遮阴小麦籽粒淀粉合成和干物质积累的影响[J].江苏农业学报,2022,38(01):9-19.[doi:doi:10.3969/j.issn.1000-4440.2022.01.002]
 WANG Bei-bei,XU Xu,ZHAO Yan,et al.Effects of plant growth hormone on starch synthesis and dry matter accumulation of wheat grain under waterlogging and shading after anthesis[J].,2022,38(01):9-19.[doi:doi:10.3969/j.issn.1000-4440.2022.01.002]
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植物生长调节剂对花后渍水遮阴小麦籽粒淀粉合成和干物质积累的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
38
期数:
2022年01期
页码:
9-19
栏目:
遗传育种·生理生化
出版日期:
2022-02-28

文章信息/Info

Title:
Effects of plant growth hormone on starch synthesis and dry matter accumulation of wheat grain under waterlogging and shading after anthesis
作者:
王贝贝徐旭赵艳侯君佑杨丽胡正马尚宇樊永惠黄正来张文静
(安徽农业大学农学院/农业农村部黄淮南部小麦生物学与遗传育种重点实验室,安徽合肥230036)
Author(s):
WANG Bei-beiXU XuZHAO YanHOU Jun-you YANG LiHU ZhengMA Shang-yuFAN Yong-huiHUANG Zheng-laiZHANG Wen-jing
(1.College of Agronomy, Anhui Agricultural University/Key Laboratory of Wheat Biology and Genetic Improvement on South Yellow & Huai River Valley,Ministry of Agriculture and Rural Affairs, Hefei 230036, China)
关键词:
小麦渍水遮阴6-苄氨基腺嘌呤(6-BA)水杨酸(SA)淀粉干物质积累
Keywords:
wheatwaterlogging and shading6-benzylamino adenine (6-BA)salicylic acid (SA)starchdry matter accumulation
分类号:
S512.101
DOI:
doi:10.3969/j.issn.1000-4440.2022.01.002
文献标志码:
A
摘要:
为探明喷施植物生长调节剂6-苄氨基腺嘌呤(6-BA)和水杨酸(SA)对小麦花后渍水遮阴胁迫后籽粒淀粉合成和干物质积累的影响,以渍水敏感型品种皖麦52和渍水迟钝型品种扬麦18为材料,人工模拟花后7 d、11 d和15 d 3个渍水遮阴时长,于处理结束当天喷施6-BA和SA,研究喷施植物生长调节剂对小麦籽粒淀粉合成关键酶活性、淀粉积累、干物质积累及产量的影响。结果表明,渍水遮阴后喷施6-BA和SA能不同程度上缓解渍水遮阴对小麦籽粒淀粉葡萄糖焦磷酸化酶(AGPase)、颗粒结合态淀粉合成酶(GBSS)、可溶性淀粉合成酶(SSS)和淀粉分支酶(SBE)活性造成的影响,对籽粒SSS活性修复的效果最为显著,其次是AGPase和SBE,GBSS活性受外源6-BA的影响较小。与对照相比,喷施6-BA和SA提高了淀粉积累速率,增加了淀粉的最终积累量,延长了花后渍水遮阴后小麦灌浆持续时间,提高了平均灌浆速率,增加了千粒质量和花后渍水遮阴7 d、11 d处理的穗粒数,减轻了花后渍水遮阴对小麦产量的不利影响。另外,两种植物生长调节剂间比较,6-BA的修复效果要优于SA。喷施6-BA和SA均能缓解花后渍水遮阴对小麦籽粒淀粉合成关键酶活性造成的伤害,有利于籽粒淀粉合成和干物质积累。
Abstract:
This study aimed to investigate the effects of spraying plant growth regulator 6-benzylamino adenines (6-BA) and salicylic acid (SA) on starch synthesis and dry matter accumulation of wheat grains under waterlogging and shading after anthesis. The waterlogging-sensitive variety Wanmai 52 and the waterlogging dull variety Yangmai 18 were used as materials, and three waterlogging shading periods of 7 d, 11 d and 15 d after anthesis were artificially simulated. The 6-BA and SA were sprayed on the day of the end of the treatment. The effects of spraying plant growth regulators on the activities of key enzymes in starch synthesis, starch accumulation, dry matter accumulation and yield in wheat were studied. The results showed that spraying 6-BA and SA after waterlogging and shading could alleviate the effects of waterlogging and shading on the activities of starch glucose pyrophosphorylase (AGPase), granule-bound starch synthase (GBSS), soluble starch synthesis (SSS) and starch branching enzyme (SBE) in wheat grains to varying degrees. Among them, the effect of repairing SSS activity in the grain was the most significant, followed by AGPase and SBE. The activity of GBSS was less affected by exogenous 6-BA. Compared with the control, spraying 6-BA and SA increased the rate of starch accumulation, increased the final accumulation of starch, extended the duration of wheat filling after waterlogging and shading, raised the average filling rate, added the thousand-grain weight and the number of grains per spike treated with shading and waterlogging for 7 d and 11 d, alleviated the adverse effects of waterlogging and shading on wheat yield. In addition, the remediation effect of 6-BA was better than that of SA. Spraying 6-BA and SA can alleviate the damage caused by waterlogging and shading to the activities of key enzymes in starch synthesis in wheat grains, which is beneficial to starch synthesis and dry matter accumulation.

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备注/Memo

备注/Memo:
收稿日期:2021-04-29基金项目:国家重点研发计划项目(2017YFD0300205、 2018YFD0300902);国家自然科学基金项目(31801285);国家留学基金委项目(20180877502)作者简介:王贝贝(1995-),女,安徽宿州人,硕士研究生,研究方向为小麦高产与抗逆栽培。(Tel) 15385573215;(E-mail) 1277139744@qq.com通讯作者:张文静,(E-mail)zhangwenjing79@126.com
更新日期/Last Update: 2022-03-04