Arabidopsis alkaline ceramidase ACER functions in defense against insect herbivory

茉莉酸 拟南芥 鞘脂 茉莉酸甲酯 生物 神经酰胺 细胞生物学 甜菜 生物化学 植物 植物对草食的防御 突变体 夜蛾 基因 重组DNA 细胞凋亡
作者
Liqun Huang,Pingping Li,Jing Yin,Yongkang Li,Ding‐Kang Chen,He‐Nan Bao,Rui-Yuan Fan,Hao‐Zhuo Liu,Nan Yao
出处
期刊:Journal of Experimental Botany [Oxford University Press]
卷期号:73 (14): 4954-4967 被引量:5
标识
DOI:10.1093/jxb/erac166
摘要

Abstract Plant sphingolipids are important membrane components and bioactive molecules in development and defense responses. However, the function of sphingolipids in plant defense, especially against herbivores, is not fully understood. Here, we report that Spodoptera exigua feeding affects sphingolipid metabolism in Arabidopsis, resulting in increased levels of sphingoid long-chain bases, ceramides, and hydroxyceramides. Insect-induced ceramide and hydroxyceramide accumulation is dependent on the jasmonate signaling pathway. Loss of the Arabidopsis alkaline ceramidase ACER increases ceramides and decreases long-chain base levels in plants; in this work, we found that loss of ACER enhances plant resistance to S. exigua and improves response to mechanical wounding. Moreover, acer-1 mutants exhibited more severe root-growth inhibition and higher anthocyanin accumulation than wild-type plants in response to methyl jasmonate treatment, indicating that loss of ACER increases sensitivity to jasmonate and that ACER functions in jasmonate-mediated root growth and secondary metabolism. Transcript levels of ACER were also negatively regulated by jasmonates, and this process involves the transcription factor MYC2. Thus, our findings reveal that ACER is involved in mediating jasmonate-related plant growth and defense and that jasmonates function in regulating the expression of ACER.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
大模型应助mendicant采纳,获得10
1秒前
wwww0wwww应助puppy采纳,获得10
1秒前
2秒前
次镜发布了新的文献求助10
4秒前
丘比特应助舒心的安青采纳,获得10
4秒前
5秒前
5秒前
酷酷薯片发布了新的文献求助10
6秒前
清晨五点的沙滩完成签到,获得积分10
6秒前
传奇3应助胡八一采纳,获得10
7秒前
7秒前
QSY发布了新的文献求助10
7秒前
7秒前
8秒前
一枚研究僧应助wyp采纳,获得10
8秒前
8秒前
9秒前
小树完成签到,获得积分10
10秒前
yuechat发布了新的文献求助10
11秒前
蹦极辣条关注了科研通微信公众号
11秒前
12秒前
jiajia发布了新的文献求助30
12秒前
清平道人完成签到,获得积分10
13秒前
Masvidog发布了新的文献求助40
13秒前
华仔应助顶刊_采纳,获得10
13秒前
14秒前
大白不白完成签到,获得积分10
14秒前
16秒前
共享精神应助Wenpandaen采纳,获得10
17秒前
18秒前
SciGPT应助xzy采纳,获得10
18秒前
大鱼完成签到,获得积分20
19秒前
19秒前
敏感跳跳糖完成签到,获得积分10
19秒前
20秒前
20秒前
ma应助科研通管家采纳,获得10
20秒前
共享精神应助科研通管家采纳,获得10
20秒前
丘比特应助科研通管家采纳,获得10
20秒前
高分求助中
The late Devonian Standard Conodont Zonation 2000
Nickel superalloy market size, share, growth, trends, and forecast 2023-2030 2000
The Lali Section: An Excellent Reference Section for Upper - Devonian in South China 1500
Smart but Scattered: The Revolutionary Executive Skills Approach to Helping Kids Reach Their Potential (第二版) 1000
Very-high-order BVD Schemes Using β-variable THINC Method 850
Mantiden: Faszinierende Lauerjäger Faszinierende Lauerjäger 800
PraxisRatgeber: Mantiden: Faszinierende Lauerjäger 800
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3252120
求助须知:如何正确求助?哪些是违规求助? 2894918
关于积分的说明 8284229
捐赠科研通 2563608
什么是DOI,文献DOI怎么找? 1391769
科研通“疑难数据库(出版商)”最低求助积分说明 651925
邀请新用户注册赠送积分活动 628951