湖北农业科学
湖北農業科學
호북농업과학
2014年
7期
1535-1538
,共4页
石油污染%翅碱蓬(Suaeda heteroptera Kitagawa)%生长指标%生理指标
石油汙染%翅堿蓬(Suaeda heteroptera Kitagawa)%生長指標%生理指標
석유오염%시감봉(Suaeda heteroptera Kitagawa)%생장지표%생리지표
petroleum pollution%Suaeda heteroptera Kitagawa%growth%physiological indexes
通过盆栽试验，测定了翅碱蓬（Suaeda heteroptera Kitagawa)在盐渍化条件下受石油污染时的生长生理指标，研究盐渍化条件下石油污染对翅碱蓬株高、生物量等生长指标以及叶绿素含量、过氧化氢酶、可溶性蛋白质、游离脯氨酸含量的影响。结果表明，翅碱蓬对石油的耐受阈值为5.0 g/kg，超过此阈值抑制作用明显增加。翅碱蓬的株高及生长量随石油浓度增加而下降；叶绿素含量随石油浓度升高而降低；过氧化氢酶在留苗后开始培养的20 d内随石油浓度增加而增加，在40和60 d时低石油浓度下保持平稳，高石油浓度下下降；可溶性蛋白质含量在低石油浓度污染下40 d内基本保持平稳，高石油浓度下下降，60 d时所有石油浓度处理均下降；游离脯氨酸含量40 d内随石油浓度增加而上升，在60 d时，石油浓度≤5.0 g/kg时游离脯氨酸含量显著高于对照，石油浓度为10.0、25.0 g/kg时游离脯氨酸含量显著低于对照。
通過盆栽試驗，測定瞭翅堿蓬（Suaeda heteroptera Kitagawa)在鹽漬化條件下受石油汙染時的生長生理指標，研究鹽漬化條件下石油汙染對翅堿蓬株高、生物量等生長指標以及葉綠素含量、過氧化氫酶、可溶性蛋白質、遊離脯氨痠含量的影響。結果錶明，翅堿蓬對石油的耐受閾值為5.0 g/kg，超過此閾值抑製作用明顯增加。翅堿蓬的株高及生長量隨石油濃度增加而下降；葉綠素含量隨石油濃度升高而降低；過氧化氫酶在留苗後開始培養的20 d內隨石油濃度增加而增加，在40和60 d時低石油濃度下保持平穩，高石油濃度下下降；可溶性蛋白質含量在低石油濃度汙染下40 d內基本保持平穩，高石油濃度下下降，60 d時所有石油濃度處理均下降；遊離脯氨痠含量40 d內隨石油濃度增加而上升，在60 d時，石油濃度≤5.0 g/kg時遊離脯氨痠含量顯著高于對照，石油濃度為10.0、25.0 g/kg時遊離脯氨痠含量顯著低于對照。
통과분재시험，측정료시감봉（Suaeda heteroptera Kitagawa)재염지화조건하수석유오염시적생장생리지표，연구염지화조건하석유오염대시감봉주고、생물량등생장지표이급협록소함량、과양화경매、가용성단백질、유리포안산함량적영향。결과표명，시감봉대석유적내수역치위5.0 g/kg，초과차역치억제작용명현증가。시감봉적주고급생장량수석유농도증가이하강；협록소함량수석유농도승고이강저；과양화경매재류묘후개시배양적20 d내수석유농도증가이증가，재40화60 d시저석유농도하보지평은，고석유농도하하강；가용성단백질함량재저석유농도오염하40 d내기본보지평은，고석유농도하하강，60 d시소유석유농도처리균하강；유리포안산함량40 d내수석유농도증가이상승，재60 d시，석유농도≤5.0 g/kg시유리포안산함량현저고우대조，석유농도위10.0、25.0 g/kg시유리포안산함량현저저우대조。
The effects of petroleum pollution on plant height, dry weight, content of chlorophyll, catalase (CAT﹚ activity, soluble protein, and free proline in Suaeda heteroptera Kitagawa were studied by pot experiments. The results showed that the plants had tolerance threshold of 5.0 g/kg for petroleum, beyond which the plant showed high inhibitory effects compared with control group. With the increase of petroleum concentrations in soils, the growth characteristics declined. The chlorophyll con-tents in the plant declined obviously. CAT activities increased before 20 days and kept stable before 40 and 60 days,then decreased with a high concentration of petroleum. The contents of soluble protein remained stable before 40 days with a low concentration of petroleum while decreased with a high concentration of petroleum. All treatment of petroleum concentrations declined at 60 days. The free proline content increased with the increas of petroleum concentrations before 40 days.The pro-line content was obviously higher than that of CK at 60 days. When the petroleum concentrations were 10.0 and 25.0 g/kg, the proline content was obviously lower than that of CK.
