Variation in CO2 assimilation rate induced by simulated dew waters with different sources of hydroxyl radical (*OH) on the needle surfaces of Japanese red pine (Pinus densifora Sieb. et Zucc.).
Variation in CO2 assimilation rate induced by simulated dew waters with different sources of hydroxyl radical (*OH) on the needle surfaces of Japanese red pine (Pinus densifora Sieb. et Zucc.).
复制标题
日本红松 (Pinus densifora Sieb. et Zucc.) 针叶表面含有不同羟基自由基 (*OH) 来源的模拟露水引起的 CO2 同化率的变化。
DOI：
10.1016/s0269-7491(01)00289-5
复制
发表时间：
2002
影响因子：
8.9
通讯作者：
H. Sakugawa
中科院分区：
文献类型：
--
作者：
T. Kobayashi;N. Natanani;T. Hirakawa;M. Suzuki;T. Miyake;M. Chiwa;T. Yuhara;N. Hashimoto;K. Inoue;K. Yamamura;N. Agus;J. Sinogaya;K. Nakane;A. Kume;T. Arakaki;H. Sakugawa
赤松(Pinus densiflora Sieb.)针叶表面受露水污染，产生羟基自由基(·OH)。Et Zucc.)。这种自由基是一种强有力的氧化剂，被认为是导致芒特山面向城市一侧衰落树木的生态生理紊乱的原因。日本西部的极乐市。清晨，模拟露水的·OH生成N(III)(HNO2和NO2−)和HoOH+Fe+草酸盐溶液(50和100μM，pH5.1~5.4)喷洒在开顶式气室中生长的松树幼苗的叶片上。100μM N(III)处理的针叶具有较大的最大CO2同化速率(Amax)、较大的气孔导度(GS)和较高的针叶含氮量(N针)，说明N(III)雾是一种肥料而不是植物毒素。另一方面，100μM HoOH+Fe+草酸盐溶液处理的针叶产量最小，说明HoOH+Fe+草酸盐的组合导致了针叶生产力的下降。HoOH+Fe+草酸盐雾对松针的影响与山上树木倒伏的症状非常相似。极乐司。
The hydroxyl radical (·OH) is generated in polluted dew on the needle surfaces of Japanese red pine (Pinus densiflora Sieb. et Zucc.). This free radical, which is a potent oxidant, is assumed to be a cause of ecophysiological disorders of declining trees on the urban-facing side of Mt. Gokurakuji, western Japan. Mists of ·OH-generating N(III) (HNO2and NO2−) and HOOH+Fe+oxalate solutions (50 and 100 μM, pH 5.1–5.4) simulating the dew water were applied to the foliage of pine seedlings grown in open-top chambers in the early morning. Needles treated with 100 μM N(III) tended to have a greater maximum CO2assimilation rate (Amax), a greater stomatal conductance (gs) and a greater needle nitrogen content (Nneedle), suggesting that N(III) mist acts as a fertilizer rather than as a phytotoxin. On the other hand, needles treated with 100 μM HOOH+Fe+oxalate solution showed the smallest Amax, gs, and Nneedle, suggesting that the combination of HOOH+Fe+oxalate caused a decrease in needle productivity. The effects of HOOH+Fe+oxalate mist on pine needles were very similar to the symptoms of declining trees at Mt. Gokurakuji.
DOI：
10.1098/rstb.2000.0708
发表时间：
2000-10
期刊：
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子：
--
作者：
H. Yamasaki
通讯作者：
H. Yamasaki
影响因子：
4.3
作者：
BJORKMAN, O;DEMMIG, B
通讯作者：
DEMMIG, B