摘要
本文对长白山的软枣猕猴桃(Actinidia arguta(Sieb et Zucc.)Planch ex Miquel)茎的次生维管组织进行了比较详细的解剖研究。结果表明其木材为半环孔材,次生木质部中导管底壁倾斜具梯状穿孔板;木薄壁组织丰富,发现其中不仅有离管型,而且也有傍管型。这就为猕猴桃科(Actini-diaceae)植物的木薄壁组织增添了一种新类型。木射线为异形Ⅰ及异形Ⅱ,并具连接木射线。经研究确认其次生韧皮部的筛管属典型的双子叶木本植物型,其特征为筛管具复筛板,无伴胞。同时本文与本属的其它种也作了比较分析,为其营养繁殖时不定根、不定芽的产生提供了理论依据,同时也为野生果树资源研究者提供一份有关软枣猕猴桃茎次生维管组织研究的新资料。
The secondary vascular tissue in the stem of Actinidia arguta is madean exhaustive study by the author. The results are as follows: its woodis belongs to seri-ring porous wood, the bottom wall of vessel in the se-condary xylem is sloping with scalariform perforation plates, wood paren-chyma is numerous, it has not only apotracheal but also paratracheal, thisdiscoveries and to the parenchyma type of Actinidiaceae; the wood rays areketergeneous Ⅰ and Ⅱ, and it has linked rays. The sieve tube of the se-condary phloem is the dicotyledon wood type, the sieve tube is with com-pound sieve plate without companion cell. As observing the secondary va-scular tissue in the stem of A. arguta it is compared with the others inthe genus Actinidia and determined, the type of the wood rays and woodparenchyma, it is the first to observe its secondary phloem that is dico-tyledon wood type. This prvide the secondary vascular tissue of the Acti-nidiaceae with a new kind of anatomical material.
出处
《植物研究》
CAS
CSCD
北大核心
1991年第1期79-83,共5页
Bulletin of Botanical Research
