春季温室内两种竹类植物叶片解剖结构与光合特性研究  

Study on leaf anatomical structure and photosynthetic characteristics of two bamboo species in spring greenhouse

作　　者：张景润 王彬存 ZHANG Jing-run;WANG Bin-cun(College of Landscape and Forestry,Qingdao Agricultural University,Qingdao 266109,Shandong,China)

机构地区：[1]青岛农业大学园林与林学院,山东青岛266109

出　　处：《湖北农业科学》2020年第20期108-111,共4页Hubei Agricultural Sciences

摘　　要：利用石蜡包埋法制作金丝葫芦竹(Bambusa ventricosa kimmei)与佛肚竹(Bambusa ventricosa McClure)的石蜡切片并解剖观察其显微结构,并利用CIRAS-3光合测量仪测量2种竹类植物叶片的光合特性指标及光响应参数。结果表明,金丝葫芦竹与佛肚竹的解剖结构和光合特性存在差异。佛肚竹叶片的上下表皮、栅栏组织和海绵组织的厚度均大于金丝葫芦竹;佛肚竹的净光合速率、气孔导度以及水分利用效率均强于金丝葫芦竹,但前者的蒸腾速率却不及后者。从二者光响应曲线对比发现,金丝葫芦竹对弱光的利用能力不如佛肚竹,且在高光环境下光合作用更容易受到抑制。The paraffin sections of Bambusa ventricosa kimmeiand Bambusa ventricosa McClure were prepared by paraffin embedding method and their structures were observed by microscopy.The photosynthetic characteristics and the optical response parameters of two kinds of bamboo plants were measured by CIRAS-3 photosynthesis measuring instrument.The results showed that there were dif⁃ferences in anatomical structure and photosynthetic characteristics of Bambusa ventricosa kimmei and Bambusa ventricosa McClure.The thickness of the upper,lower epidermis,palisade tissue and sponge tissue of the leaves of Bambusa ventricosa McClure were larg⁃er than that of Bambusa ventricosa kimmei.After the comparison of five photosynthetic characteristics,the net photosynthetic rate,sto⁃matal conductance and water use efficiency of Bambusa ventricosa McClure were stronger than that of Bambusa ventricosa kimmei,but the transpiration rate of the former was lower than that of the latter.From the light response curves of the two bamboo plants,it was found that the utilization of the Bambusa ventricosa kimmei was not as good as that of the weak light,and the photosynthesis was more suscep⁃tible to inhibition in the high light environment.

关 键 词：竹类植物 金丝葫芦竹(Bambusa ventricosa kimmei) 佛肚竹(Bambusa ventricosa McClure) 解剖结构 光合特性 光响应 

分 类 号：S795[农业科学—林木遗传育种]