Effects of short-term simulated acid rain on the photosynthesis of Eremochloa ophiuroides

2011 ◽  
Author(s):  
Songheng Jin ◽  
Xueqin Li
Keyword(s):  
Acid Rain ◽  
Simulated Acid Rain ◽  
Short Term ◽  
Eremochloa Ophiuroides

Effects of potassium deficiency and simulated acid rain, alone and in combination, on the ultrastructure of Scots pine needles

1989 ◽  
Vol 19 (11) ◽  
pp. 1402-1411 ◽  
Author(s):  
Toini Holopainen ◽  
Pekka Nygren
Keyword(s):  
Acid Rain ◽  
Scots Pine ◽  
Potassium Deficiency ◽  
Simulated Acid Rain ◽  
Sand Culture ◽  
Short Term ◽  
Transmission Electron ◽  
Resting Period ◽  
Lipid Structures ◽  
Parenchyma Tissue

The effects of potassium deficiency and artificial acid precipitation, alone and in combination, on Scots pine (Pinussilvestris L.) needles were studied using transmission electron microscopy. The seedling material was grown in quartz sand culture and watered with nutrient solution containing 45, 20, 10, or 5 mg of potassium/L; the concentration of other nutrients was constant and equally available for all seedlings. A portion of the seedlings from each group received consecutive acidified water spraying of pH 4.5, 4.0, 3.5, and 3.0, each for 4 days with a 3-day resting period between applications. The potassium deficiency caused an increase in the proportional vacuolar space and severe vesiculation of the tonoplast. Irregularly shaped lipid structures increased in number in the cytoplasm, and lipid bodies also appeared in the vacuoles and occasionally in the chloroplasts. The symptoms related to potassium deficiency were more severe in the transfusion parenchyma cells than in the mesophyll. The lowest level of potassium produced almost complete disorganization of the cellular structures in the transfusion parenchyma tissue, but severe changes were also seen in the mesophyll. The simulated acid rain treatment caused the formation of protrusions in the chloroplasts and an increase in irregularly shaped lipid structures in the cytoplasm throughout the mesophyll tissue, but no clear symptoms were observed inside the bundle sheath. In general, the changes caused by acid rain in the chloroplasts were slight and did not cause serious disorganization of these organelles. When the seedlings were exposed to combination treatment, the typical symptoms of both exposures were observable. The results suggest that the stresses caused by potassium deficiency and short-term foliar acid rain treatment can be distinguished in the needle ultrastructure.

Short-term response of soil respiration to simulated acid rain in Cunninghamia lanceolata and Michelia macclurei plantations

2018 ◽  
Vol 19 (3) ◽  
pp. 1239-1249 ◽  
Author(s):  
Wenhui Zheng ◽  
Renshan Li ◽  
Qingpeng Yang ◽  
Weidong Zhang ◽  
Ke Huang ◽  
...  
Keyword(s):  
Soil Respiration ◽  
Acid Rain ◽  
Simulated Acid Rain ◽  
Cunninghamia Lanceolata ◽  
Short Term ◽  
Term Response

Effect of Simulated Acid Rain on Gas Exchanges of Three Compositae Invasive Plants

2013 ◽  
Vol 48 (2) ◽  
pp. 160-167
Author(s):  
Song Liying ◽  
Ke Zhanhong ◽  
Sun Lanlan ◽  
Peng Changlian
Keyword(s):  
Acid Rain ◽  
Invasive Plants ◽  
Simulated Acid Rain ◽  
Gas Exchanges

Effect of simulated ‘acid rain’ on cation loss from leaves

Nature ◽  
1975 ◽  
Vol 255 (5506) ◽  
pp. 324-325 ◽  
Author(s):  
J. A. W. FAIRFAX ◽  
N. W. LEPP
Keyword(s):  
Acid Rain ◽  
Simulated Acid Rain

The effect of simulated acid rain on feather mosses and lichens of the boreal forest

1986 ◽  
Vol 31 (1-2) ◽  
pp. 409-416 ◽  
Author(s):  
T. C. Hutchinson ◽  
M. Dixon ◽  
M. Scott
Keyword(s):  
Boreal Forest ◽  
Acid Rain ◽  
Simulated Acid Rain ◽  
Feather Mosses
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