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Increasing forest loss worldwide from invasive pests requires new trade regulations
Loss of forests due to non-native invasive pests (including insects, nematodes, and pathogens) is a global phenomenon with profound population, community, ecosystem, and economic impacts. We review… Expand
DISEASE SPREAD AND POPULATION DYNAMICS OF ANTHER-SMUT INFECTION OF SILENE ALBA CAUSED BY THE FUNGUS USTILAGO VIOLACEA
SUMMARY (1) The anther-smut fungus, Ustilago tiolacea, sterilizes its dioecious host plant Silene alba by transforming plant reproductive parts into stamen-like structures that produce and disperse… Expand
The Distribution of Mating-Type Bias in Natural Populations of the Anther-Smut Ustilago violacea on Silene alba in Virginia
Complete individual-wide mating-type bias (retrieval of sporidia of only one mating type from germinated teliospores of one fungal individual) was observed to be a common and widespread feature of ...
DISPERSAL AND DISEASE GRADIENTS OF ANTHER-SMUT INFECTION OF SILENE ALBA AT DIFFERENT LIFE STAGES'
Given the increased recognition of the importance of spatial aggregation of infected individuals on disease spread, we used a field experiment to examine spore dispersal and disease transmission at… Expand
The interaction between plant competition and disease
Abstract It is well documented that pathogens can affect the survival, reproduction, and growth of individual plants. Drawing together insights from diverse studies in ecology and agriculture, we… Expand
Maintenance of Plant Species Diversity by Pathogens
We present strong evidence that pathogens play a critical role in structuring plant communities and maintaining plant diversity. Pathogens mediate plant species coexistence through trade-offs between… Expand
AN EXPERIMENTAL FIELD STUDY OF ANTHER‐SMUT DISEASE OF SILENE ALBA CAUSED BY USTILAGO VIOLACEA: GENOTYPIC VARIATION AND DISEASE INCIDENCE
- H. Alexander
- Biology, Medicine
- Evolution; international journal of organic…
- 1 July 1989
Twenty cloned genotypes of Silene alba differed greatly (0–100%) in the percentage of flowering plants that became diseased by the anther‐smut fungus Ustilago violacea following natural spore… Expand
TIR-NBS-LRR genes are rare in monocots: evidence from diverse monocot orders
BackgroundPlant resistance (R) gene products recognize pathogen effector molecules. Many R genes code for proteins containing nucleotide binding site (NBS) and C-terminal leucine-rich repeat (LRR)… Expand
Seed size variation and predation of seeds produced by wild and crop-wild sunflowers.
- H. Alexander, C. L. Cummings, L. Kahn, A. Snow
- Biology, Medicine
- American journal of botany
- 1 April 2001
The movement of pollen between crop and wild sunflowers (both Helianthus annuus) has led to concerns about the possible introduction of crop transgenes into wild populations. The persistence of crop… Expand
Soil pathogenic fungi have the potential to affect the co‐existence of two tallgrass prairie species
Summary 1 Negative feedback may exist between plant species and their biotic soil communities. Two co-occurring native tallgrass species (Andropogon gerardii, a perennial grass, and Chamaecrista… Expand