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Photochemical smog light O 2 + NO 3 O 3 + NO O 3 + NO + - - PowerPoint PPT Presentation
Photochemical smog light O 2 + NO 3 O 3 + NO O 3 + NO + - - PowerPoint PPT Presentation
Photochemical smog light O 2 + NO 3 O 3 + NO O 3 + NO + hydrocarbons PAN ( peroxyacetyl nitrate) Ozone damage on Ponderosa pine Crown gall - a disease caused by Agrobacterium tumefaciens Bacterial scorch of red oak Bacterial scorch-like
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Crown gall - a disease caused by Agrobacterium tumefaciens
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Images from Diseases
- f Trees and Shrubs
Sinclair et al. 1989
Bacterial scorch of red oak Bacterial scorch-like symptoms of California buckeye
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Images from Diseases of Trees and
- Shrubs. Sinclair et al. 1989
Elm Yellows - caused by a “MLO” Bacteria in vessel
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Images from Diseases of Trees and
- Shrubs. Sinclair et al. 1989
Blackline disease of walnut, cause by Cherry leafroll virus
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Dodder - Cuscuta sp. a parasitic plant
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Dodder - a close-up
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Mistletoes
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Mistletoes Dwarf Mistletoe on pine Leafy Mistletoe on oak
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http://www.landandwater.com/features/vol49no6/vol49no6_1.php
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Host and host- specificity of dwarf mistletoes
From Biology and classification of Dwarf Mistletoe (Arceuthobium) Hawksworth & Wiens 1972
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distribution of dwarf mistletoes in North America
From Biology and classification of Dwarf Mistletoe (Arceuthobium) Hawksworth & Wiens 1972
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From Biology and classification of Dwarf Mistletoe (Arceuthobium) Hawksworth & Wiens 1972
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flowers capsules Seed being shot
From Biology and classification of Dwarf Mistletoe (Arceuthobium) Hawksworth & Wiens 1972
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seeds and sliding
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germinating seeds in X-sections
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“Runner and sinkers” - endophyte morphology of dwarf mistletoe From Hawkswork and Weins http://www.rms.nau.edu/publications/ah_709/
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Arceuthobium (Dwarf Mistletoe) whole plant view sugar pine limber pine white fir Douglas-fir
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Brooms western white pine larch
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large broom on ponderosa pine
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Oyster mushroom (Pleurotus) fruiting on an
- ld mistletoe canker of
red fir
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Phorodendron Berries of P. libocedri on incense cedar Deposition of seeds on true fir seedling on hardwood
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Leafy mistletoe Phorodendron Phorodendron pauciflorum
- n white fir
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Tristerix aphyllus
www.ujf-grenoble.fr/JAL/chili/imag-FJ/paras.jpg&imgrefurl=http://www.ujf-grenoble.fr/JAL/ chili/plantes
Tristerix veritcillatus Desert Mistletoes from Chile
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