异质性光对野牛草叶片解剖结构的影响
郝晨淞;王庆凯;孙小玲
【期刊名称】《植物生态学报》 【年(卷),期】2016(040)003
【摘要】Aims Essential resources for plant growth are usually patchily distributed. During the process of propagation, interconnected ramet pairs of stoloniferous plant buffalograss (Buchloe dactyloides) may therefore experience contrasting resource supply such as light. Under heterogeneous light supply, anatomical structure of newly devel-oped leaves is regulated by the light condition of mature leaves. However, little is known about whether leaf ana-tomical structure of clonal ramets is affected by the light environment of interconnected ramets in clonal plants under heterogeneous light supply. MethodsTwo light levels were set, with high light (natural sunlight) and low light (shade, 10% natural sunlight). Interconnected ramet pairs of buffalograss were exposed to homogeneous
or
heterogeneous
light
conditions.
Important
findingsMain vein diameter, bundle sheath cell number, leaf thickness and adaxial/abaxial meso-phyll thickness of shaded ramets were remarkably decreased in spatially heterogeneous light environment; while no signifiacnt difference of these parameters was observed between ramets developed under homogeneous high light and low light conditions. Under heterogeneous light supply, adaxial/abaxial
异质性光对野牛草叶片解剖结构的影响
