便攜式葉綠素測定儀在植物熒光效應中的應用
葉綠素是每種綠色植物中都存在的物質,通常情況下,我們通過便攜式葉綠素測定儀就jiu可ke以yi輕qing鬆song測ce出chu葉ye綠lv素su含han量liang。葉ye綠lv素su分fen子zi的de激ji發fa是shi將jiang光guang能neng轉zhuan變bian為wei化hua學xue能neng的de過guo程cheng,而er葉ye綠lv素su的de熒ying光guang現xian象xiang往wang往wang就jiu是shi這zhe一yi過guo程cheng下xia的de產chan物wu,它ta們men的de變bian化hua能neng夠gou反fan映ying光guang合he作zuo用yong的de狀zhuang況kuang,因yin此ci,我wo們men對dui它ta們men的de研yan究jiu也ye是shi少shao不bu了le的de,今jin天tian小xiao編bian就jiu帶dai大da家jia一yi起qi來lai了le解jie一yi下xia葉ye綠lv素su的de熒ying光guang產chan生sheng原yuan因yin及ji原yuan理li吧ba!

changyongdebianxieshiyelvsucedingyikeyicechuyelvsuhanliang,danbukezhijiejianceyelvsudeyingguangxianxiang,zhinengtongguoyelvsudehanliangquyanjiuyingguanghelinguangxianxiang,nazhegeguochengjiubidingyaoyongdaobianxieshiyelvsucedingyi。tongguoshiyanfaxian:葉ye綠lv素su的de酒jiu精jing溶rong液ye在zai透tou射she光guang下xia為wei翠cui綠lv色se,而er在zai反fan射she光guang下xia為wei棕zong紅hong色se。這zhe個ge紅hong光guang就jiu是shi葉ye綠lv素su受shou光guang激ji發fa後hou發fa射she的de熒ying光guang,這zhe個ge現xian象xiang就jiu是shi熒ying光guang現xian象xiang。主zhu要yao原yuan理li及ji時shi由you於yu葉ye綠lv素su有you兩liang個ge不bu同tong的de吸xi收shou峰feng,我wo們men把ba葉ye綠lv素su的de丙bing酮tong提ti取qu液ye放fang在zai光guang源yuan與yu分fen光guang鏡jing之zhi間jian,可ke以yi看kan到dao光guang譜pu中zhong有you些xie波bo長chang的de光guang被bei吸xi收shou了le,所suo以yi,在zai光guang譜pu上shang就jiu會hui出chu現xian黑hei線xian或huo暗an帶dai,這zhe種zhong光guang譜pu叫jiao吸xi收shou光guang譜pu。葉ye綠lv素su對dui其qi它ta光guang吸xi收shou較jiao少shao,其qi中zhong對dui綠lv光guang吸xi收shou是shi最zui少shao的de,由you於yu葉ye綠lv素su吸xi收shou綠lv光guang最zui少shao,所suo以yi葉ye綠lv素su的de溶rong液ye呈cheng綠lv色se。葉ye綠lv素su的de丙bing酮tong提ti取qu液ye在zai透tou射she光guang下xia是shi翠cui綠lv色se的de,而er在zai反fan射she光guang下xia是shi棕zong紅hong色se的de。葉ye綠lv素su溶rong液ye的de熒ying光guang可ke達da吸xi收shou的de10%左右,而鮮葉的熒光程度較低,隻占吸收光的0.1%-1%左右。
由(you)此(ci)可(ke)見(jian),葉(ye)綠(lv)素(su)的(de)熒(ying)光(guang)效(xiao)應(ying)在(zai)植(zhi)物(wu)生(sheng)理(li)學(xue)中(zhong)有(you)廣(guang)泛(fan)的(de)應(ying)用(yong),用(yong)這(zhe)個(ge)效(xiao)應(ying)還(hai)可(ke)以(yi)研(yan)究(jiu)植(zhi)物(wu)的(de)抗(kang)逆(ni)生(sheng)理(li)。因(yin)為(wei)在(zai)逆(ni)境(jing)下(xia),植(zhi)物(wu)的(de)葉(ye)綠(lv)素(su)會(hui)發(fa)生(sheng)變(bian)換(huan),研(yan)究(jiu)它(ta)的(de)熒(ying)光(guang),可(ke)以(yi)作(zuo)為(wei)植(zhi)物(wu)受(shou)逆(ni)境(jing)脅(xie)迫(po)程(cheng)度(du)的(de)重(zhong)要(yao)指(zhi)標(biao),在(zai)實(shi)驗(yan)中(zhong),借(jie)助(zhu)便(bian)攜(xie)式(shi)葉(ye)綠(lv)素(su)測(ce)定(ding)儀(yi)這(zhe)類(lei)專(zhuan)業(ye)儀(yi)器(qi)的(de)檢(jian)測(ce)是(shi)必(bi)不(bu)可(ke)少(shao)的(de),它(ta)能(neng)為(wei)實(shi)驗(yan)提(ti)供(gong)科(ke)學(xue)準(zhun)確(que)的(de)依(yi)據(ju)。



