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Citation:

Effect of PulsedMagnetic Field on the Growth, Physiolog ica l andBiochem ica l Character istics of P inus m asson iana Ca llus

  • Received Date: 2008-06-10
  • The present research used Pinus m asson iana callus as the experiment material. P. m assoniana calluswere treated with different pulse rise time and treating time, then the growth condition of P. m assoniana calluswasobserved, the exterior shape, the content of soluble p rotein and soluble sugar and the activity of p rotective enzymesof P. m assoniana calluswere also been discussed. The experiment results were as follows: (1) After treated withpulsed magnetic field, the fresh weight of P. m assoniana callus increased obviously compared with the controlgrouP. The trend of its development was increasing slowly then decreasing sharp ly. ( 2) The treatment of pulsedmagnetic field on the P. m assoniana callus could increase the contents of soluble p rotein and soluble sugar. Andthose parameters increased to the highest level at the pulse rise time of 5 ms and treating time of 8 h. (3) Aftertreated with pulsed magnetic field, the activity of p rotective enzyme system comp rised of peroxidase ( POD ) , superoxide dismutase ( SOD) , catalase (CAT) increased with the imp rovement of pulse rise time and treating time.The activities of POD, SOD, CAT increased to the highest level at the pulse rise time of 5 ms and treating time of8 h and then decreased with different degree. (4) At a certain pulse rise time and treating time, the cellmembraneof P. m assoniana callus could still maintain a relatively strong stability, indicating that cells of P. m asson ianacallus had a certain resistance and endurance against pulsed magnetic field.
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Effect of PulsedMagnetic Field on the Growth, Physiolog ica l andBiochem ica l Character istics of P inus m asson iana Ca llus

  • 1. Research Institute of Forest Ecology, Environment and Protection, CAF, Key Laboratory of Forestry Protection, State Forestry Administration,Beijing 100091, China
  • 2.  Beijing Xishan Experimental Forest Farm, Beijing 100093, China
  • 3. College of Electronic andInformation Engineering, Hebei University, Baoding 071002, Hebei, China

Abstract: The present research used Pinus m asson iana callus as the experiment material. P. m assoniana calluswere treated with different pulse rise time and treating time, then the growth condition of P. m assoniana calluswasobserved, the exterior shape, the content of soluble p rotein and soluble sugar and the activity of p rotective enzymesof P. m assoniana calluswere also been discussed. The experiment results were as follows: (1) After treated withpulsed magnetic field, the fresh weight of P. m assoniana callus increased obviously compared with the controlgrouP. The trend of its development was increasing slowly then decreasing sharp ly. ( 2) The treatment of pulsedmagnetic field on the P. m assoniana callus could increase the contents of soluble p rotein and soluble sugar. Andthose parameters increased to the highest level at the pulse rise time of 5 ms and treating time of 8 h. (3) Aftertreated with pulsed magnetic field, the activity of p rotective enzyme system comp rised of peroxidase ( POD ) , superoxide dismutase ( SOD) , catalase (CAT) increased with the imp rovement of pulse rise time and treating time.The activities of POD, SOD, CAT increased to the highest level at the pulse rise time of 5 ms and treating time of8 h and then decreased with different degree. (4) At a certain pulse rise time and treating time, the cellmembraneof P. m assoniana callus could still maintain a relatively strong stability, indicating that cells of P. m asson ianacallus had a certain resistance and endurance against pulsed magnetic field.

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