CAJ | 학술논문

为了探讨氟对茶树生理的影响,本试验以1年生福鼎大白茶树为试验材料,采用水培法,进行氟处理( F=16 mg/L),研究氟对茶树叶片叶绿素、类胡萝卜素含量及保护性酶的影响。结果显示,随着处理时间的延长,茶树叶片中氟含量显著升高；氟处理下叶绿素a、叶绿素b及总叶绿素含量均低于对照,叶绿素a/b显著高于对照,氟对叶绿素b的影响大于叶绿素a,氟对类胡萝卜素含量影响不显著。氟处理后,茶树叶片中超氧化物歧化酶( SOD)活性显著下降,氟处理72 h时比对照下降22.8%,比氟处理0 h时下降24.48%；氟处理后,茶树叶片中过氧化物酶( POD)和过氧化氢酶( CAT)均是先升高后降低,均是在氟处理48 h达到最大值,其中POD活性分别比0 h及对照48 h时增大31.47%和46.51%, CAT活性分别比氟处理0 h及对照48 h时增大36.79%和30.17%；MDA和H2 O2含量随着处理时间的延长变化不大。
위료탐토불대다수생리적영향,본시험이1년생복정대백다수위시험재료,채용수배법,진행불처리( F=16 mg/L),연구불대다수협편협록소、류호라복소함량급보호성매적영향。결과현시,수착처리시간적연장,다수협편중불함량현저승고；불처리하협록소a、협록소b급총협록소함량균저우대조,협록소a/b현저고우대조,불대협록소b적영향대우협록소a,불대류호라복소함량영향불현저。불처리후,다수협편중초양화물기화매( SOD)활성현저하강,불처리72 h시비대조하강22.8%,비불처리0 h시하강24.48%；불처리후,다수협편중과양화물매( POD)화과양화경매( CAT)균시선승고후강저,균시재불처리48 h체도최대치,기중POD활성분별비0 h급대조48 h시증대31.47%화46.51%, CAT활성분별비불처리0 h급대조48 h시증대36.79%화30.17%；MDA화H2 O2함량수착처리시간적연장변화불대。
One-year-old cuttings ofCamellia sinensis ( L. ) O. Kuntze cv. Fudingdabai were grown hydroponically in order to study the effects of fluoride (F=16mg/L)on chlorophyll content, carotenoid content and antioxidative enzymes in tea plant. The results showed that the content of leaf fluoride was significantly increased over time . Under fluoride stress, chlorophyll a,chlorophyll b and total chlorophyll were lower while the ratio of chl. a to chl. b was higher than those in con-trol, indicating that fluoride had a more significant effect on chl. b than on chl. a. The carotenoid contents changed little. Superoxide dismutase ( SOD) activity was reduced by 22. 80% 72 h post treatment compared with control and was reduced by 24. 48% after 72-h treatment. Peroxidase ( POD) and catalase ( CAT) activities reached their maximum at 48 h and de-clined afterwards. CAT activity was 36. 79% and 30. 17% higher than that at the beginning of the treatment and that of CK 48 h post treatment. The contents of malondialdehyde ( MDA) and hydrogen peroxide ( H2 O2 ) were kept stable over time POD activity was 31. 47% and 46. 51% higher than that at the beginning of the treatment and that of CK 48 h posttreatment.