Diagnosis of Invisible Photosynthetic Injury Caused by a Herbicide (Basta) with Chlorophyll Fluorescence Imaging System
Diagnosis of Invisible Photosynthetic Injury Caused by a Herbicide (Basta) with Chlorophyll Fluorescence Imaging System
复制标题
叶绿素荧光成像系统诊断除草剂（Basta）引起的隐形光合损伤
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
K. Omasa
中科院分区：
文献类型：
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作者：
K. Takayama;A. Konishi;K. Omasa
叶绿素荧光成像是获取生理信息的有力工具，
以非破坏性和非侵入性方式获取植物叶片信息。巴斯塔的影响，
最流行的市售叶面施用型除草剂之一，
利用叶绿素荧光成像技术对菜豆叶片进行了原位分析
系统在Basta处理后，CO2同化率和ΦPS III立即降低，
代表光系统II的光化学产率，降低和NPQ，
表示在治疗区域中增加的吸收光能的热耗散。
同化率与ΦPS Ⅱ之间存在着线性正相关，而ΦPS Ⅱ与同化率之间存在着线性正相关。
同化率与NPQ呈负线性相关。这些
结果表明，早期诊断隐性光合伤害，
Basta的方法是可行的，叶绿素荧光成像可以作为一个系统使用
用于早期检测除草剂对生长植物的光合作用抑制。
【关键词】叶绿素荧光，CO2同化率，热耗散，
光系统III的光化学产量，光合损伤
Chlorophyll fluorescence imaging is a powerful tool in obtaining physiological
information on plant leaf in non-destructive and non-invasive ways. Effects of Basta,
one of the most popular commercially available foliar application-type herbicides, on in
situ kidney bean leaf was analyzed with a developed chlorophyll fluorescence imaging
system. Immediately after the Basta treatment, CO2 assimilation rate and ΦPSΙΙ, which
represents the photochemical yield of photosystem ΙΙ, decreased and NPQ, which
represents the heat dissipation of absorbed light energy, increased in the treated area.
A positive linear correlation was confirmed between assimilation rate and ΦPSΙΙ, while a
negative linear correlation was confirmed between assimilation rate and NPQ. These
results demonstrated that the early diagnosis of invisible photosynthetic injury caused
by Basta was feasible and the chlorophyll fluorescence imaging can be used as a system
for early detection of photosynthetic inhibition of growing plants caused by herbicides.
[Keywords] chlorophyll fluorescence, CO2 assimilation rate, heat dissipation,
photochemical yield of photosystem ΙΙ, photosynthetic injury