a flattened hypha of a parasitic fungus that penetrates the host tissues
Word origin
from New Latin, from Latin appressus; see appressed
Examples of 'appressorium' in a sentence
appressorium
The oligoarray analysis identified the expression of 3,793 mycelium-specific and 4,652 appressorium-specific genes.
Dean Ralph, Haudenschild Christian D, Couglan Sean, Stahlberg Eric, Wing Rod, Li Huameng,Nobuta Kan, Raghupathy Mohan B, Venu RC, Gowda Malali, Nahm Baek-Hie, Meyers BlakeC, Wang Guo-Liang 2006, 'Deep and comparative analysis of the mycelium and appressorium transcriptomes of Magnaporthegrisea using MPSS, RL-SAGE, and oligoarray methods', BMC Genomicshttp://www.biomedcentral.com/1471-2164/7/310. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We also discussed the crosstalk and interaction of various pathways during the appressorium development.
Wilfred Mabeche Anjago, Tengshen Zhou, Honghong Zhang, Mingyue Shi, Tao Yang, HuakunZheng, Zonghua Wang 2018, 'Regulatory network of genes associated with stimuli sensing, signal transduction andphysiological transformation of appressorium in Magnaporthe oryzae', Mycologyhttp://dx.doi.org/10.1080/21501203.2018.1492981. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
These mutants were defective in appressorium-mediated penetration and invasive infectious growth.
Marie Emmanuelle Saint-Macary, Crystel Barbisan, Marie Josèphe Gagey, Océane Frelin,Roland Beffa, Marc Henri Lebrun, Michel Droux 2015, 'Methionine biosynthesis is essential for infection in the rice blast fungus Magnaportheoryzae.', PLoS ONEhttp://europepmc.org/articles/PMC4391826?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Surprisingly, the addition of exogenous chitosan fully restored germling adhesion and appressorium development.
Ivey A Geoghegan, Sarah J Gurr 2016, 'Chitosan Mediates Germling Adhesion in Magnaporthe oryzae and Is Required for SurfaceSensing and Germling Morphogenesis.', PLoS Pathogenshttp://europepmc.org/articles/PMC4912089?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We then analysed global patterns of gene expression during appressorium development.
Darren M Soanes, Apratim Chakrabarti, Konrad H Paszkiewicz, Angus L Dawe, NicholasJ Talbot 2012, 'Genome-wide transcriptional profiling of appressorium development by the rice blastfungus Magnaporthe oryzae.', PLoS Pathogenshttp://europepmc.org/articles/PMC3276559?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The chs7 mutant also was defective in appressorium penetration and invasive growth.
Ling-An Kong, Jun Yang, Guo-Tian Li, Lin-Lu Qi, Yu-Jun Zhang, Chen-Fang Wang, Wen-ShengZhao, Jin-Rong Xu, You-Liang Peng 2012, 'Different chitin synthase genes are required for various developmental and plant infectionprocesses in the rice blast fungus Magnaporthe oryzae.', PLoS Pathogenshttp://europepmc.org/articles/PMC3276572?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The mutant abolished the ability to develop appressorium, and lost pathogenicity to host plants.
Yu-Lan Fang, Li-Ming Xia, Ping Wang, Li-Hua Zhu, Jian-Ren Ye, Lin Huang 2018, 'The MAPKKK CgMck1 Is Required for Cell Wall Integrity, Appressorium Development, andPathogenicity in Colletotrichum gloeosporioides', Geneshttps://www.mdpi.com/2073-4425/9/11/543. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Morphological features such as colony growth, conidia size, and mycelial appressorium were assessed.
Dionicio Fuentes-Aragón, Sandra Berenice Juárez-Vázquez, Mateo Vargas-Hernández, HildaVictoria Silva-Rojas 2018, 'Colletotrichum fructicola, a Member of Colletotrichum gloeosporioides sensu lato,is the Causal Agent of Anthracnose and Soft Rot in Avocado Fruits cv. “Hass”', Mycobiologyhttp://dx.doi.org/10.1080/12298093.2018.1454010. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
To cause rice blast disease the fungus elaborates a specialised infection structure called an appressorium.
Darren M Soanes, Apratim Chakrabarti, Konrad H Paszkiewicz, Angus L Dawe, NicholasJ Talbot 2012, 'Genome-wide transcriptional profiling of appressorium development by the rice blastfungus Magnaporthe oryzae.', PLoS Pathogenshttp://europepmc.org/articles/PMC3276559?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
However, the percentage of appressorium formation in the mutant was greatly reduced.
H.Y. Yong, F.D.A. Bakar, R.M. Illias, N.M. Mahadi, A.M.A. Murad 2013, 'Cgl-SLT2 is required for appressorium formation, sporulation and pathogenicity inColletotrichum gloeosporioide', Brazilian Journal of Microbiologyhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400031&lng=en&tlng=en. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)