01602naa a2200265 a 450000100080000000500110000800800410001902400430006010000210010324501300012426000090025452008060026365000140106965000140108365000220109765000160111965300190113565300150115465300360116970000160120570000200122170000240124170000220126577300490128721588022024-02-15       2023    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1111/efp.128402DOI1 aBRUMAT, A. C. L.  aFirst report of Phytophthora macrochlamydospora associated with tree decline in Pinus taeda in Brazil.h[electronic resource]  c2023  aAbstractIn 2019, 18-year-old Pinus taeda trees with symptoms of chlorosis in the aerial part, shortening of needles and reduced plant growth, ultimately leading to tree decline, were found in plantations in southern Brazil. When collecting roots, a reduction in the volume of fine roots in trees and absence of ectomycorrhiza was observed. An oomy-cete was isolated from the roots and soil of the rhizosphere, and its pathogenicity was confirmed through Koch's postulates. The morphological characteristics of this oomy-cete were similar to the Phytophthora macrochlamydospora, which was confirmed by the molecular characterization from three gene regions (ITS-rDNA, COX I and TEF1α). This is the first report of P. macrochlamydospora associated with tree decline in P. taeda in Brazil and worldwide.  aOomycetes  aPhylogeny  aDoença de Planta  aPinus Taeda  aIdentification  aMorphology  aPhytophthora macrochlamydospora1 aAUER, C. G.1 aTESSMANN, D. J.1 aDUARTE, H. da S. S.1 aSANTOS, A. F. dos  tForest Pathologygv. 53, n. 6, e12840, 2023.