Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Publication Year
Articles 1 - 28 of 28
Full-Text Articles in Entire DC Network
B.R. Wells Arkansas Rice Research Studies 2018, R. J. Norman, K. A.K. Moldenhauer
B.R. Wells Arkansas Rice Research Studies 2018, R. J. Norman, K. A.K. Moldenhauer
Arkansas Agricultural Experiment Station Research Series
No abstract provided.
An Inquiry-Based Investigation Of Bacterial Soft Rot Of Potato, Robert Louis Hirsch, Seth Miller, Dennis Halterman
An Inquiry-Based Investigation Of Bacterial Soft Rot Of Potato, Robert Louis Hirsch, Seth Miller, Dennis Halterman
Plant Pathology Faculty Publications
Inquiry-based investigations of diseases are often difficult to safely undertake in middle school or high school science courses. However, by utilizing potatoes as a mammalian analogue, important groups of pathogens can be investigated with common materials available from the local supermarket. This article provides information to guide the exploration of factors underlying the development of the potato disease bacterial soft rot, caused by Pectobacterium caratovorum, and allows students the freedom to develop and test their own hypotheses regarding the development of symptoms, the spread of pathogens, and the impact of host and environmental variables on the progress of disease.
Damping-Off, Claudia Nischwitz
Ceratobasidium Root Rot: A New Disease Of Watermelon In Arizona, Claudia Nischwitz
Ceratobasidium Root Rot: A New Disease Of Watermelon In Arizona, Claudia Nischwitz
All Current Publications
No abstract provided.
Botrytis Neck Rot Of Onion, Claudia Nischwitz
Botrytis Neck Rot Of Onion, Claudia Nischwitz
All Current Publications
No abstract provided.
W 289-O Ipm Quickfacts Series: Apple Scab, Amy Fulcher, Heather Bowers
W 289-O Ipm Quickfacts Series: Apple Scab, Amy Fulcher, Heather Bowers
Insects, Pests, Plant Diseases and Weeds
No abstract provided.
W289-G Verticillium Wilt, Amy Fulcher, Heather Bowers
W289-G Verticillium Wilt, Amy Fulcher, Heather Bowers
Insects, Pests, Plant Diseases and Weeds
No abstract provided.
W289-A Ipm Quickfacts Series: Fire Blight, Amy Fulcher, Heather Bowers
W289-A Ipm Quickfacts Series: Fire Blight, Amy Fulcher, Heather Bowers
Insects, Pests, Plant Diseases and Weeds
No abstract provided.
W289-R Ipm Quickfacts Series: Oystershell Scale, Amy Fulcher, Heather Bowers
W289-R Ipm Quickfacts Series: Oystershell Scale, Amy Fulcher, Heather Bowers
Insects, Pests, Plant Diseases and Weeds
No abstract provided.
W289-L Ipm Quickfacts Series: Black Root Rot, Amy Fulcher, Heather Bowers
W289-L Ipm Quickfacts Series: Black Root Rot, Amy Fulcher, Heather Bowers
Insects, Pests, Plant Diseases and Weeds
No abstract provided.
W289-D Ipm Quickfacts Series: Phytophthora Root Rot, Amy Fulcher, Heather Bowers
W289-D Ipm Quickfacts Series: Phytophthora Root Rot, Amy Fulcher, Heather Bowers
Insects, Pests, Plant Diseases and Weeds
No abstract provided.
W289-C Ipm Quickfacts Series: White Peach Scale, Amy Fulcher, Heather Bowers
W289-C Ipm Quickfacts Series: White Peach Scale, Amy Fulcher, Heather Bowers
Insects, Pests, Plant Diseases and Weeds
No abstract provided.
W289-E Ipm Quickfacts Series: Calico Scale, Amy Fulcher, Heather Bowers
W289-E Ipm Quickfacts Series: Calico Scale, Amy Fulcher, Heather Bowers
Insects, Pests, Plant Diseases and Weeds
No abstract provided.
W289-B Ipm Quickfacts Series: Bacterial Leaf Scorch, Amy Fulcher, Heather Bowers
W289-B Ipm Quickfacts Series: Bacterial Leaf Scorch, Amy Fulcher, Heather Bowers
Insects, Pests, Plant Diseases and Weeds
No abstract provided.
W289-I Ipm Quickfacts Series: Tuliptree Scale, Amy Fulcher, Taylor Cavanaugh, Heather Bowers
W289-I Ipm Quickfacts Series: Tuliptree Scale, Amy Fulcher, Taylor Cavanaugh, Heather Bowers
Insects, Pests, Plant Diseases and Weeds
No abstract provided.
W142 Scouting And Monitoring Pests Of Deciduous Trees During Nursery Production, Amy Fulcher
W142 Scouting And Monitoring Pests Of Deciduous Trees During Nursery Production, Amy Fulcher
Commercial Horticulture
No abstract provided.
Thousand Cankers Disease Of Walnut (Geosmithia Morbida), Claudia Nischwitz
Thousand Cankers Disease Of Walnut (Geosmithia Morbida), Claudia Nischwitz
All Current Publications
No abstract provided.
Ultrastructure Of Teliospores And Promycelium And Basidiospore Formation In The Four-Spored Form Of Gymnoconia Nitens, One Of The Causes Of Orange Rust Of Rubus, C. W. Mims, E. A. Richardson, Josephine Taylor
Ultrastructure Of Teliospores And Promycelium And Basidiospore Formation In The Four-Spored Form Of Gymnoconia Nitens, One Of The Causes Of Orange Rust Of Rubus, C. W. Mims, E. A. Richardson, Josephine Taylor
Faculty Publications
Orange rust of Rubus is an interesting disease because of the fact that it can be caused by three different rust fungi that produce virtually identical symptoms. One is Gymnoconia peckiana (Howe in Peck) Trotter, which is a demicyclic species, while the other two are endocyclic forms historically referred to as Gymnoconia nitens (Schwein.) Kern & H.W. Thurston. Although the spores produced on infected Rubus leaves by these latter two forms are morphologically identical to the aeciospores of G. peckiana, they actually function as teliospores. However, the teliospores of one of the forms gives rise to two-celled promycelia that …
Antifungal Activity Of Camptothecin, Trifolin, And Hyperoside Isolated From Camptotheca Acuminata, Shiyou Li, Zhizhen Zhang, Abigail Cain, Bo Wang, Melissa Long, Josephine Taylor
Antifungal Activity Of Camptothecin, Trifolin, And Hyperoside Isolated From Camptotheca Acuminata, Shiyou Li, Zhizhen Zhang, Abigail Cain, Bo Wang, Melissa Long, Josephine Taylor
Faculty Publications
Leaf spots and root rots are major fungal diseases in Camptotheca acuminata that limit cultivation of the plant for camptothecin (CPT), a promising anticancer and antiviral alkaloid. Bioassays showed that pure CPT and flavonoids (trifolin and hyperoside) isolated from Camptotheca effectively control fungal pathogens in vitro, including Alternaria alternata, Epicoccum nigrum, Pestalotia guepinii, Drechslera sp., and Fusarium avenaceum, although antifungal activity of these compounds in the plant is limited. CPT inhibited mycelial growth by approximately 50% (EC50) at 10−30 μg/mL and fully inhibited growth at 75−125 μg/mL. The flavonoids were less effective than CPT …
Sustainability Issues For Agriculture In Western Australia, Anne Bennett, Ross Kingwell, Ross George
Sustainability Issues For Agriculture In Western Australia, Anne Bennett, Ross Kingwell, Ross George
Agriculture reports
This paper describes briefly the main challenges to the sustainability of agriculture in Western Australia and outlines some means of responding the the challenges: market-based approaches; agricultural and environmental research and development; accelerated adjustment; and global and national policy initiatives. Challenges include: land resource quality (salinity, soil acidity), biodiversity, greenhouse gas emissions, climate change, water availability, food safety, and pests and diseases.
Blackspot Disease Of Roses [Abstract], Robert J. Wiggers, Josephine Taylor, J. A. Margoitta, S. G. Pandalai
Blackspot Disease Of Roses [Abstract], Robert J. Wiggers, Josephine Taylor, J. A. Margoitta, S. G. Pandalai
Faculty Publications
No abstract provided.
Sustainability Issues For Agriculture In Western Australia, Anne Bennett, Ross Kingwell, Ross George
Sustainability Issues For Agriculture In Western Australia, Anne Bennett, Ross Kingwell, Ross George
All other publications
Agriculture has been and will continue to be a major component of economic activity in several regions in Western Australia, and agricultural communities will remain an important part of the social fabric and landscape of the State. Promoting the sustainability of agriculture is likely to produce three main outcomes: vibrant rural communities; profitable agricultural systems; and conservation of the natural environment. This paper describes briefly the main challenges to the sustainability of agriculture and outlines some means of responding to the challenges: market-based approaches; agricultural and environmental research and development; accelerated adjustment; and global and national policy initiatives.
The Ten Most Exciting Plant Diseases For 2001, Dennis Hinkamp
The Ten Most Exciting Plant Diseases For 2001, Dennis Hinkamp
All Archived Publications
No abstract provided.
Proceedings Of Carrot Conference Australia, Perth, Western Australia, Figaro Natoli, Sam Calameri, Albert Grubelich, Allan Mckay, Elaine Davison, David Ellement
Proceedings Of Carrot Conference Australia, Perth, Western Australia, Figaro Natoli, Sam Calameri, Albert Grubelich, Allan Mckay, Elaine Davison, David Ellement
Conference papers and presentations
No abstract provided.
A Scanning Electron Microscopic Study Of The Infection Of Water Oak (Quercus Nigra) By Taphrina Caerulescens, Josephine Taylor, Dale O. Birdwell
A Scanning Electron Microscopic Study Of The Infection Of Water Oak (Quercus Nigra) By Taphrina Caerulescens, Josephine Taylor, Dale O. Birdwell
Faculty Publications
The fungal pathogen Taphrina caerulescens was isolated from leaves of water oak (Quercus nigra) exhibiting symptoms of oak leaf blister. Healthy leaves were inoculated with a suspension of cells from pure culture in order to examine the infection process. Scanning electron microscopy was used to monitor budding of T. caerulescens cells, formation of germ tubes, and indirect penetration of leaf tissue through stomata, which occurred within 48 h post-inoculation. Direct penetration was not observed.
Conidial Germination And Infection By Diplocarpon Rosae On Susceptible And Resistant Rose Species, Robert J. Wiggers, J. G. West, Josephine Taylor
Conidial Germination And Infection By Diplocarpon Rosae On Susceptible And Resistant Rose Species, Robert J. Wiggers, J. G. West, Josephine Taylor
Faculty Publications
Conidial germination and infection by Dipplocarpon rosae, the causal organism of rose blackspot, were examined on two resistant species of roses, Rosa roxburghii and R. wichuraiana and two susceptible hybrid tea roses (R. hybrid cv. Chicago Peace and Garden Party). Fungal conidia germinated and gave rise to subcuticular mycelium that formed haustoria within epidermal cells of all four roses tested. On the resistant rose species, epidermal cells associated with the infection site became necrotic, indicating that a hypersensitive response is involved in conferring their resistance D. rosae.
Infection And Fungal Development Of Tubakia Dryina On Sweet Gum (Liquidambar Styraciflua), Josephine Taylor, Shane Clark
Infection And Fungal Development Of Tubakia Dryina On Sweet Gum (Liquidambar Styraciflua), Josephine Taylor, Shane Clark
Faculty Publications
Infection and fungal development of Tubakia dryina were investigated on leaves of sweet gum using a combination of microscopic techniques. Conidia of T. dryina adhered to the leaf surface and formed septate germ tubes. Germ tubes terminated in small appressoria that formed directly over epidermal cells. Intra- and intercellular hyphae ramified extensively throughout the leaf tissue. Host cells associated with the infection site became necrotic and collapsed, resulting in macroscopic disease symptoms.
Virus, Viroid, Mycoplasma And Rickettsial Diseases Of Plants In Western Australia, L K. Price, George Mclean
Virus, Viroid, Mycoplasma And Rickettsial Diseases Of Plants In Western Australia, L K. Price, George Mclean
Technical Bulletins
Provides details of the virus, viroid, mycoplasma and rickettsial diseases recorded on plants in Western Australia. To establish these records, a range of tests have been used including sap transmission; leaf dip electron microscopy; aphid transmission and serology. The authenticity for each record is noted in the list of pathogens.