Microscopic Observation on the Development of Puccinia striiformis in the Spike and Stem of Wheat
Microscopic Observation on the Development of Puccinia striiformis in the Spike and Stem of Wheat
复制标题
小麦穗和茎秆中条锈菌发育的显微观察
DOI：
10.1111/j.1439-0434.2010.01760.x
复制
发表时间：
2011-04-01
影响因子：
1.5
通讯作者：
Kang, Zhensheng
中科院分区：
文献类型：
--
作者：
Wang, Chenfang;Zhang, Hongchang;Kang, Zhensheng
条锈菌专化型 (Puccinia striiformis f.sp.) CYR32 致病型的大部分芽管。小麦在易感小麦品种的穗器官表面形成。水原11号穿过气孔，仅有少数芽管在气孔上形成小附壁。在外稃、内稃和颖片中，条锈菌在靠近内表皮层的薄壁细胞间蔓延，但在这些器官的靠近外表皮层的厚壁细胞间不发育。在芒和茎中，条锈病的传播仅限于叶绿素薄壁组织的细胞间隙，在侵入的表皮气孔下方，释放的尿素孢子破坏了表皮。在颖果中，菌丝的传播仅限于果皮细胞的细胞间隙。
The majority of germ tubes of the pathotype CYR32 of Puccinia striiformis f.sp. tritici formed on the surface of spike organs of the susceptible wheat cv. Suwon 11 penetrated through the stomatal pore, only a few germ tubes formed small appressoria over the stomata. In the lemma, palea and glume, the stripe rust fungus spread between the parenchyma cells close to the inner epidermal layer, but the fungus did not develop between the thick-walled cells near the outer epidermal layer of these organs. In the awn and stem, spread of the stripe rust was confined to the intercellular spaces of the chlorophyll parenchyma, beneath the invaded stomatal pore of the epidermis and the urediniospores to be released disrupted the epidermis. In the caryopsis, the spread of hyphae was restricted to the intercellular spaces of the pericarp cells.