Hyperspectral imaging reveals small-scale water gradients in apple leaves due to minimal cuticle perforation by Venturia inaequalis conidiophores

蒸腾作用 分生孢子 表皮(毛发) 苹果黑星病 白粉病 生物 inaequalis文丘里亚 高光谱成像 园艺 植物 孢子 穿孔 材料科学 光合作用 解剖 遥感 杀菌剂 地质学 冶金 冲孔
作者
Erich-Christian Oerke,Ulrike Steiner
出处
期刊:Journal of Experimental Botany [Oxford University Press]
卷期号:75 (10): 3125-3140 被引量:1
标识
DOI:10.1093/jxb/erae065
摘要

Effects of Venturia inaequalis on water relations of apple leaves were studied under controlled conditions without limitation of water supply to elucidate their impact on the non-haustorial biotrophy of this pathogen. Leaf water relations, namely leaf water content and transpiration, were spatially resolved by hyperspectral imaging and thermography; non-imaging techniques-gravimetry, a pressure chamber, and porometry-were used for calibration and validation. Reduced stomatal transpiration 3-4 d after inoculation coincided with a transient increase of water potential. Perforation of the plant cuticle by protruding conidiophores subsequently increased cuticular transpiration even before visible symptoms occurred. With sufficient water supply, cuticular transpiration remained at elevated levels for several weeks. Infections did not affect the leaf water content before scab lesions became visible. Only hyperspectral imaging was suitable to demonstrate that a decreased leaf water content was strictly limited to sites of emerging conidiophores and that cuticle porosity increased with sporulation. Microscopy confirmed marginal cuticle injury; although perforated, it tightly surrounded the base of conidiophores throughout sporulation and restricted water loss. The role of sustained redirection of water flow to the pathogen's hyphae in the subcuticular space above epidermal cells, to facilitate the acquisition and uptake of nutrients by V. inaequalis, is discussed.
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
无花果应助科研通管家采纳,获得10
刚刚
wanci应助科研通管家采纳,获得10
刚刚
爆米花应助科研通管家采纳,获得10
刚刚
科研通AI2S应助科研通管家采纳,获得10
1秒前
1秒前
Hello应助科研通管家采纳,获得10
1秒前
CipherSage应助科研通管家采纳,获得10
1秒前
情怀应助科研通管家采纳,获得10
1秒前
Cape发布了新的文献求助10
2秒前
David_xx发布了新的文献求助10
3秒前
滴滴发布了新的文献求助10
3秒前
光亮的世界完成签到,获得积分20
5秒前
6秒前
北岭雪兮完成签到 ,获得积分10
6秒前
7秒前
打打应助滴滴采纳,获得10
8秒前
~静发布了新的文献求助10
10秒前
思源应助慈祥的乐菱采纳,获得10
15秒前
大大小小发布了新的文献求助10
18秒前
18秒前
领导范儿应助长风采纳,获得10
18秒前
zike发布了新的文献求助10
18秒前
hlt完成签到 ,获得积分10
19秒前
Yeiiiiii完成签到,获得积分10
19秒前
sleep2333发布了新的文献求助10
20秒前
隐形曼青应助David_xx采纳,获得10
20秒前
22秒前
大喜发布了新的文献求助10
24秒前
24秒前
26秒前
Polymer72应助xnnnn采纳,获得10
27秒前
27秒前
任性沁发布了新的文献求助10
28秒前
28秒前
小小发布了新的文献求助10
28秒前
大喜发布了新的文献求助30
29秒前
小李完成签到 ,获得积分10
31秒前
32秒前
pylchm发布了新的文献求助30
32秒前
长风发布了新的文献求助10
34秒前
高分求助中
Natural History of Mantodea 螳螂的自然史 1000
Glucuronolactone Market Outlook Report: Industry Size, Competition, Trends and Growth Opportunities by Region, YoY Forecasts from 2024 to 2031 800
A Photographic Guide to Mantis of China 常见螳螂野外识别手册 800
Autoregulatory progressive resistance exercise: linear versus a velocity-based flexible model 500
The analysis and solution of partial differential equations 400
Sociocultural theory and the teaching of second languages 300
Experimental research on the vibration of aviation elbow tube by 21~35 MPa fluid pressure pulsation 300
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 物理化学 催化作用 细胞生物学 免疫学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3338512
求助须知:如何正确求助?哪些是违规求助? 2966704
关于积分的说明 8626210
捐赠科研通 2645895
什么是DOI,文献DOI怎么找? 1448916
科研通“疑难数据库(出版商)”最低求助积分说明 671293
邀请新用户注册赠送积分活动 659959