aeciospore

{{Use dmy dates|date=October 2023}}

{{short description|Reproductive structure of a fungus}}

File:Basi1003L.jpg of Puccinia graminis with an aecium releasing its aeciospores through the broken leaf surface. A=Aeciospore, B=Aecium. Scale bar = 0.1 mm]]

Aeciospores are one of several different types of spores formed by rusts.{{cite journal |last1=Kyu Lee |first1=Seung |last2=Kakishima |first2=Makoto |date=April 1999 |title=Aeciospore surface structures of Gymnosporangium and Roestelia (Uredinales)|journal=Mycoscience |language=en|volume=40 |issue=2 |pages=109–120 |doi=10.1007/BF02464289 |s2cid=84953707 |issn=1340-3540}}{{cite journal |last1=Bueno-Sancho |first1=Vanessa |last2=Orton |first2=Elizabeth S. |last3=Gerrity |first3=Morgan |last4=Lewis |first4=Clare M. |last5=Davey |first5=Phoebe |last6=Findlay |first6=Kim C. |last7=Barclay |first7=Elaine |last8=Robinson |first8=Phil |last9=Morris |first9=Richard J. |last10=Blyth |first10=Mark |last11=Saunders |first11=Diane G.O. |date=22 October 2021 |language=en|title=Aeciospore ejection in the rust pathogen Puccinia graminis is driven by moisture ingress|journal=Communications Biology |volume=4 |issue=1 |page=1216 |doi=10.1038/s42003-021-02747-1|doi-access=free|issn=2399-3642 |pmc=8536709 |pmid=34686772}} They each have two nuclei and are typically seen in chain-like formations in the aecium.{{cite web|title=Glossary: Aeciospore|website=Pacific Northwest Pest Management Handbooks|date=11 April 2019 |publisher=Pacific Northwest Extension|url=https://pnwhandbooks.org/aeciospore|access-date=23 March 2023}}