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Position: Home > Articles > Effects of NaCl Stress on Photosynthesis of Three Bamboos Chinese Journal of Tropical Crops 2013,34 (5) 910-914

NaCl胁迫对3种竹类植物叶片光合作用的影响

作  者:
陈松河;黄全能;郑逢中;马丽娟;包宇航
单  位:
厦门市园林植物园;厦门大学海洋与环境学院
关键词:
花叶唐竹;小琴丝竹;刺黑竹;NaCl胁迫;光合作用
摘  要:
采用盆栽试验法,对花叶唐竹(Sinobambusa tootsik f.luteolo-albo-striata)、小琴丝竹(Bambusa multiplex‘Alphonse-karr’)和刺黑竹(Chimonobambusa neopurpurea)进行不同浓度盐(NaCl)胁迫(CK、0.1%、0.3%、0.5%、0.7%、1.0%)处理,用美国LI-COR公司生产的LI-6400便携式光合作用分析系统测定其各项光合作用相关指标,分析研究其中重要的4项指标:净光合速率(Pn)、气孔导度(Gs)、胞间二氧化碳浓度(Ci)和蒸腾速率(E),以探究NaCl胁迫对3种竹子叶片光合作用的影响。结果表明:低盐胁迫(0.1%NaCl处理)提高了小琴丝竹和刺黑竹叶片净光合速率、气孔导度和蒸腾速率,而对花叶唐竹影响不大,但随着盐胁迫浓度的增加,3种竹类植物叶片的净光合速率、气孔导度和蒸腾速率呈逐渐下降的趋势;3种竹类植物胞间二氧化碳浓度随盐胁迫浓度的提高变化规律不明显。
译  名:
Effects of NaCl Stress on Photosynthesis of Three Bamboos
作  者:
CHEN Songhe1,HUANG Quanneng1,ZHENG Fengzhong2,MA Lijuan1,BAO Yuhang1 1 Xiamen Botanical Garden,Xiamen,Fujian 361003,China 2 College of Ocean and Environment Sciences,Xiamen University,Xiamen,Fujian 361004,China
关键词:
Sinobambusa tootsik f.luteolo-albo-striata;Bambusa multiplex ‘Alphonse-karr’;Chimonobambusa neopurpurea;NaCl stress;Photosynthesis
摘  要:
Four important indices of photosynthesis,including net photosynthetic rate(Pn),stomatal conductance(Gs),transpiration rate(E) and intercellular CO2(Ci) of the three bamboos of Sinobambusa tootsik f.luteolo-albostriata,Bambusa multiplex ‘Alphonse-karr’ and Chimonobambusa neopurpurea were studied by LI-6400 Portable Photosynthesis System and treatments by different concentrations of NaCl(CK-0.0%,S1-0.1%,S2-0.3%,S3-0.5%,S4-0.7% and S5-1.0%) in order to discuss the effects of NaCl stress on the photosynthesis of bamboos.The results showed that: low concentrations of NaCl stress(0.1%) promoted the Pn,Gs and E of Bambusa multiplex ‘Alphonse-karr’ and Chimonobambusa neopurpurea,but little effect on Sinobambusa tootsik f.luteolo-albo-striata;from 0.3% NaCl stress to 1.0% NaCl stress,with the increasing of salinity,Pn,Gs and E of all three bamboos were decreased;Ci of all three bamboos was not in good relationship with the increasing of salinity.

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