Magnaporthe oryzae.
Magnaporthe oryzae.
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DOI：
10.1016/j.tim.2021.03.019
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发表时间：
2021-04
影响因子：
15.9
通讯作者：
R. Wilson
中科院分区：
文献类型：
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作者：
R. Wilson
图1.生物营养入侵的快照。该示意图显示了接种后32-36小时（hpi）的事件，其表征了M.米。当一个三细胞孢子附着在水稻叶片表面并萌发时，感染开始。在接种后4-6小时（hpi），芽管尖端膨胀以形成黑化的附着胞。附着胞成熟完成了24 hpi，并伴随着崩溃的孢子，孢子内容物回收到新生附着胞和建立的静水压力导致甘油积累。到28 hpi时，穿透钉刺穿叶角质层以进入下面的表皮细胞。在内部，钉首先分化成丝状的初级菌丝，然后详细说明球根状的入侵菌丝（IH）。水稻侵入性菌丝膜（EIHM）是将侵入性菌丝与水稻细胞质分离的一种膜。EIHM基质在EIHM和真菌细胞壁之间形成。在这一早期的生物营养生长阶段，M。为了抑制植物宿主的先天性免疫并避免植物宿主的免疫应答，
Figure 1. Snapshot of biotrophic invasion. This schematic shows events at 32–36 hours post inoculation (hpi) that characterize the early biotrophic colonization of living host rice cells by M. oryzae. Infection began when a three-celled spore adhered to the rice leaf surface and germinated. By 4–6 hours post inoculation (hpi), the germ tube tip swelled to form a melanized appressorium. Appressorium maturation was completed by 24 hpi and was accompanied by collapse of the spore, the recycling of spore contents into the nascent appressorium and the build-up of hydrostatic turgor resulting from glycerol accumulation. By 28 hpi, the penetration peg punctured the leaf cuticle to gain access to the underlying epidermal cell. Inside, the peg differentiated first into a filamentous primary hypha that then elaborated bulbous invasive hyphae (IH). IH are separated from rice cytoplasm by the host-derived extra-invasive hyphal membrane (EIHM). The EIHM matrix forms between the EIHM and the fungal cell wall. During this early biotrophic growth phase, M. oryzae deploys host reactive oxygen species (ROS)-scavenging systems and secreted effectors in order to suppress plant host innate immunity and avoid