Co-occurring elevated temperature and drought stresses during cotton fiber thickening stage inhibit fiber biomass accumulation and cellulose synthesis

蔗糖 蔗糖磷酸合酶 化学 纤维素 生物量(生态学) 纤维 蔗糖合成酶 转化酶 含水量 食品科学 园艺 植物 生物化学 农学 动物科学 生物 有机化学 岩土工程 工程类
作者
Wei Hu,Min Gao,Bingjie Xu,Shanshan Wang,Youhua Wang,Zhiguo Zhou
出处
期刊:Industrial Crops and Products [Elsevier]
卷期号:187: 115348-115348 被引量:10
标识
DOI:10.1016/j.indcrop.2022.115348
摘要

In order to investigate the effect of simultaneous elevated temperature and drought on Gossypium hirsutum fiber development under the background of global climate change, cotton (cv. Sumian 15 and cv. PHY370WR) plants were grown under ambient temperature (AT) or elevated temperature (ET, 2.5–2.7 °C higher than AT) conditions from 2016 to 2018. Meanwhile, three soil relative water content (SRWC) levels including (75 ± 5) % (optimum soil moisture), (60 ± 5) % (moderate drought) and (45 ± 5) % (severe drought) were established under each temperature condition. Results showed that elevated temperature combined with drought more negatively impacted the theoretical maximum of fiber biomass by further reducing the duration of rapid increase and the average increase rate of fiber biomass than any single stress. Elevated temperature and drought had opposite effects on sucrose synthesis in fibers by differently altering sucrose phosphate synthase (SPS) activity and GhSPS isoforms ( GhSPS-1 , GhSPS-2 , and GhSPS-3 ) expressions, and the two stresses had an antagonistic effect on SPS activity when they were coupled. However, lower sucrose content was observed under all single and coupled stresses, meaning that less carbon was available for cellulose synthesis. Elevated temperature or drought alone also limited cellulose synthesis by decreasing the activities of sucrose synthase (SuSy), soluble acid invertase (VIN) and alkaline invertase (CIN) involved in sucrose degradation. The decrease of SuSy activity should be the result of down-regulation of GhSuSyA , GhSuSyB and GhSuSyC expressions, and the decrease of VIN activity should be the result of down-regulation of GhInv-1 and GhInv-2 expressions under high temperature or drought alone. The combination of the two stresses had more negatively effects on SuSy activity by further down-regulating the iso-forms GhSuSyA and GhSuSyB expressions, on VIN activity by further decreasing GhInv-1 and GhInv-2 expressions, and on CIN activity than any single stress, which would further inhibit sucrose degradation to form UDPG for cellulose synthesis. Moreover, elevated temperature or drought alone enhanced callose accumulation by highly up-regulating GhCalS-5 expression and down-regulating β-1,3-glucanase expression, and the combined stress further increased the callose accumulation, suggesting that more UDPG from sucrose decomposition was allocated to callose synthesis rather than cellulose synthesis. All these confirmed that elevated temperature combined with drought exhibited synergistic negative effects on cotton fiber biomass accumulation and cellulose synthesis during fiber thickening. • The combination of elevated temperature and drought damages more on fiber biomass. • Combined stress more negatively impacts cellulose content than any single stress. • Elevated temperature and drought have antagonistic effects on sucrose synthesis. • Combined stress further limits sucrose hydrolysis to form UDPG for cellulose synthesis. • UDPG from sucrose hydrolysis is more transformed to callose under combined stress.
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
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
开朗眼神发布了新的文献求助10
刚刚
1秒前
一榔头发布了新的文献求助10
1秒前
科研通AI5应助affy210310采纳,获得10
2秒前
包容的剑发布了新的文献求助10
4秒前
4秒前
bkagyin应助sekidesu采纳,获得10
4秒前
无花果应助zsz采纳,获得10
5秒前
nino应助vsvsgo采纳,获得10
5秒前
吃猫的鱼完成签到,获得积分10
7秒前
7秒前
貔貅完成签到,获得积分10
11秒前
扳迪发布了新的文献求助30
11秒前
jumao1999发布了新的文献求助10
12秒前
13秒前
xiuxiuzhang发布了新的文献求助20
14秒前
16秒前
16秒前
领导范儿应助123采纳,获得10
17秒前
affy210310完成签到,获得积分10
17秒前
zx发布了新的文献求助10
18秒前
咚咚发布了新的文献求助30
19秒前
20秒前
25秒前
扳迪完成签到,获得积分10
27秒前
何流畅完成签到,获得积分10
28秒前
30秒前
123发布了新的文献求助10
30秒前
briliian发布了新的文献求助10
32秒前
传奇3应助ddstty采纳,获得10
33秒前
调皮的小鸽子完成签到,获得积分10
35秒前
bkagyin应助Cruuz采纳,获得10
38秒前
ddstty完成签到,获得积分10
43秒前
李健应助勤劳函采纳,获得10
44秒前
五十四发布了新的文献求助10
44秒前
善学以致用应助小土豆采纳,获得10
44秒前
情怀应助心中的马鞍采纳,获得10
45秒前
小二郎应助萝萝采纳,获得10
47秒前
Dafuer发布了新的文献求助10
47秒前
Hana发布了新的文献求助10
48秒前
高分求助中
Continuum Thermodynamics and Material Modelling 3000
Production Logging: Theoretical and Interpretive Elements 2700
Les Mantodea de Guyane Insecta, Polyneoptera 1000
Structural Load Modelling and Combination for Performance and Safety Evaluation 1000
Conference Record, IAS Annual Meeting 1977 820
電気学会論文誌D(産業応用部門誌), 141 巻, 11 号 510
Typology of Conditional Constructions 500
热门求助领域 (近24小时)
化学 材料科学 生物 医学 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 量子力学 光电子学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3570915
求助须知:如何正确求助?哪些是违规求助? 3141477
关于积分的说明 9443546
捐赠科研通 2842899
什么是DOI,文献DOI怎么找? 1562589
邀请新用户注册赠送积分活动 731096
科研通“疑难数据库(出版商)”最低求助积分说明 718375