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EffectofLightIntensityontheElectronStreamTransmissionand NitrateCumulationinBrassicanapusand Orychophragmusviolaceus(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年12期
Page:
17-20
Research Field:
Publishing date:

Info

Title:
EffectofLightIntensityontheElectronStreamTransmissionand NitrateCumulationinBrassicanapusand Orychophragmusviolaceus
Author(s):
YANGBo1; WUYan-you 1; 2
1.KeyLaboratoryofModernAgriculturalEquipmentandTechnology,MinistryofEducation,JiangsuUniversity,Zhengjiang,Jiangsu212013;
2.StateKeyLaboratoryofEnvironmentalGeochemistry,InstituteofGeochemistry,ChineseAcademyofSciences,Guiyang,Guizhou550002
Keywords:
lightintensity; electrontransportrate; nitratecontent; nitratereductaseactive
PACS:
S634.3
DOI:
-
Abstract:
Withseedlingsof B.napus and O.violaceusasexperimentalmaterials,theeffectsoffivelightintensitygradientsonelectronstreamtransmission,chlorophyllcontent,photosyntheticcharacteristics,nitratecontentandnitratereductaseactivitywerestudied.Theresultsshowedthatwithlightintensityincreasingtheelectronstreamtransmission,firstlyslowlyincreased,andrapidlyriseduntilreachedmaximum,photosyntheticrate,chlorophyllcontentandnitratereductaseactivityof B.napusand O.violaceuswerepositivecorrelativitytolightintensity.Thecontentsofnitratewasnegativecorrelationtolightintensity.Analyzedindicatorstoobtainthat275μmol?s-1 ?m-2 and300μmol?s-1 ?m-2 respectivelywasthebestlightintensityofB.napusand O.violaceus.Inthislightintensityphotosyntheticelectronstreamrapidlyincreased,nitratereductaseactivityincreasedquickly,thenitratecontentdecreasedrapidly.Therewasaclearturningpointoflightintensity,andafterthispointthechangesofphotosyntheticelectronstream，nitratecontentandnitratecontentarenotnotable.

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Last Update: 2014-09-18