The relationship of host and endophyte during flowering, seed formation, and germination of Lolium perenne
The relationship of host and endophyte during flowering, seed formation, and germination of Lolium perenne
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多年生黑麦草开花、种子形成和萌发过程中寄主与内生菌的关系
DOI：
10.1080/0028825x.1986.10409724
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发表时间：
1986
影响因子：
0.9
通讯作者：
M. Christey
中科院分区：
文献类型：
--
作者：
M. Philipson;M. Christey
摘要 描述了黑麦草组织中内生真菌在开花、结籽和发芽过程中的发育。内生菌在细胞间从营养顶端进入花序原基和花顶端，从那里它穿透子房和胚珠的组织。在大配子体成熟时，菌丝集中在其壁外，邻近大的侧向反足细胞，随后可能在受精后不久进入胚囊。在早期胚胎发生过程中，菌丝出现在胚胎表面，并在“缺口”阶段穿透胚胎。种子成熟时，菌丝广泛分布在胚内，包括胚芽顶端、种皮下方、糊粉层细胞之间以及盾片和胚乳之间。发芽时，胚胎外部的菌丝似乎不再参与入侵已感染胚胎的过程。 Festuca arundinacea 的内生菌与其寄主有着相似的关系，并且似乎...
Abstract The development of a fungal endophyte in the tissue of Lolium perenne during flowering, seed set, and germination is described. The endophyte progresses intercellularly from the vegatative apex into the inflorescence primordium and floral apices, from where it penetrates the tissues of ovary and ovule. At megagametophyte maturity, hyphae are concentrated outside its wall adjacent to the large lateral antipodal cells and subsequently gain entry to the embryo sac, probably soon after fertilisation. During early embryogenesis, hyphae occur on the surface of the embryo, and penetrate it at the ‘notched’ stage. At seed maturity, hyphae are widespread within the embryo, including the plumule apex, as well as below the testa, between cells of the aleurone layer, and between scutellum and endosperm. At germination, hyphae outside the embryo appear to play no further part in invasion of the already infected embryo. The endophyte of Festuca arundinacea has a similar relationship with its host and appears t...