Enhancement of Sphaeropsis Sapinea Stem Invasion of Pines by Water Deficits. Bachi, P. R. and Peterson, J. L. 69(9):798–799.
Enhancement of Sphaeropsis Sapinea Stem Invasion of Pines by Water Deficits. [link]Paper  abstract   bibtex   
Three-year-old trees of 3 Pinus spp. growing in a loamy clay soil were inoculated with Sphaeropsis sapinea. Water was withheld for periods sufficient to create soil water potentials of -0.1, -0.6 to -0.8 and -1.2 to -1.5 MPa. Increasingly negative soil water potentials promoted greater linear fungal growth in stems. P. sylvestris and P. nigra were more susceptible than P. thunbergiana, although fungal growth within stems of this normally resistant sp. was extensive. The findings support field observations of increased infection by S. sapinea on droughted or unhealthy trees.
@article{bachiEnhancementSphaeropsisSapinea1985,
  title = {Enhancement of {{Sphaeropsis}} Sapinea Stem Invasion of Pines by Water Deficits.},
  author = {Bachi, P. R. and Peterson, J. L.},
  date = {1985},
  journaltitle = {Plant Disease},
  volume = {69},
  pages = {798--799},
  issn = {0191-2917},
  url = {http://mfkp.org/INRMM/article/13504685},
  abstract = {Three-year-old trees of 3 Pinus spp. growing in a loamy clay soil were inoculated with Sphaeropsis sapinea. Water was withheld for periods sufficient to create soil water potentials of -0.1, -0.6 to -0.8 and -1.2 to -1.5 MPa. Increasingly negative soil water potentials promoted greater linear fungal growth in stems. P. sylvestris and P. nigra were more susceptible than P. thunbergiana, although fungal growth within stems of this normally resistant sp. was extensive. The findings support field observations of increased infection by S. sapinea on droughted or unhealthy trees.},
  keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-13504685,forest-pests,forest-resources,fungal-diseases,pinus-nigra,pinus-sylvestris,plant-diseases},
  number = {9}
}
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