scholarly journals The quasi-universality of nestedness in the structure of quantitative plant-parasite interactions

2021 ◽  
Vol 1 ◽  
pp. 1-None
Author(s):  
Benoît Moury ◽  
Jean-Marc Audergon ◽  
Sylvie Baudracco-Arnas ◽  
Safa Ben Krima ◽  
François Bertrand ◽  
...  
Keyword(s):  
Plant Parasite

In Vitro Establishment of Powdery Mildew (Microsphaera pulchra) on Microshoots of Flowering Dogwood

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 506a-506
Author(s):  
L.A. Klein ◽  
M.T. Windham ◽  
R.N. Trigiano
Keyword(s):  
Powdery Mildew ◽  
Woody Plant ◽  
Infected Individual ◽  
Callus Cultures ◽  
Fungal Culture ◽  
Culture Collections ◽  
Flowering Dogwood ◽  
Plant Parasite ◽  
In Vitro Establishment

Microshoot and callus cultures of Cornus florida (flowering dogwood), which were grown on woody plant medium amended with BA, were inoculated with Microsphaera pulchra (an obligate plant parasite) by gently shaking infected leaves bearing numerous conidia over the tissue. Culture dishes were sealed with parafilm and incubated at 24 °C with 25 mol·m–2·s–1 provided by cool fluorescent bulbs for 15 h. Cultures were examined with a dissecting scope every 24 h and cultures transferred when contaminating fungi were present. Specimens were prepared light microscopy and SEM. The fungus infected individual callus cells, but did not sporulate. In contrast, powdery mildew was well-established (both primary and secondary hyphae) in 70% of the microshoot cultures after 6 days and sporulated on 20% by 7 to 8 days. The cellular relationship between host and pathogen in vitro was similar to that found in greenhouse-grown plants. This technique has possible applications in maintaining fungal culture collections and studying host–pathogen relationships under more stringently controlled conditions.

The Influence of Perenniality and Seed Banks on Polymorphism in Plant-Parasite Interactions

2009 ◽  
Vol 174 (6) ◽  
pp. 769
Author(s):  
Tellier ◽  
Brown
Keyword(s):  
Seed Banks ◽  
Plant Parasite

scholarly journals A PCR-based Assay for Distinguishing between A1 and A2 Mating Types of Phytophthora capsici

2017 ◽  
Vol 142 (4) ◽  
pp. 260-264
Author(s):  
Ping Li ◽  
Dong Liu ◽  
Min Guo ◽  
Yuemin Pan ◽  
Fangxin Chen ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mating Type ◽  
Phytophthora Capsici ◽  
Mating Types ◽  
Sequence Repeat ◽  
Chain Reaction ◽  
Plant Parasite ◽  
Dna Fragment ◽  
Polymerase Chain ◽  
Microsatellite Diversity

Sexual reproduction in the plant parasite Phytophthora capsici Leonian requires the interaction of two distinct mating types, A1 and A2. Co-occurrence of these mating types can enhance the genetic diversity of P. capsici and alter its virulence or resistance characteristics. Using an intersimple sequence repeat (ISSR) screen of microsatellite diversity, we identified, cloned, and sequenced a novel 1121-base pair (bp) fragment specific to the A1 mating type of P. capsici. Primers Pcap-1 and Pcap-2 were designed from this DNA fragment to specifically detect the A1 mating type. Polymerase chain reaction (PCR) using these primers amplified an expected 997-bp fragment from known A1 mating types, but yielded a 508-bp fragment from known A2 mating types. This PCR-based assay could be adapted to accurately and rapidly detect the co-occurrence of A1 and A2 P. capsici mating types from field material.

Plant-Parasite Coevolution: Bridging the Gap between Genetics and Ecology

2011 ◽  
Vol 49 (1) ◽  
pp. 345-367 ◽  
Author(s):  
James K. M. Brown ◽  
Aurélien Tellier
Keyword(s):  
Plant Parasite

Plant-Parasite Interactions

Science ◽  
1977 ◽  
Vol 198 (4312) ◽  
pp. 47-47
Author(s):  
N. T. KEEN
Keyword(s):  
Plant Parasite

scholarly journals Nuclear receptor nhr-48 is required for pathogenicity of the second stage (J2) of the plant parasite Meloidogyne incognita

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Chao-Jun Lu ◽  
Bao-Yu Tian ◽  
Yi Cao ◽  
Cheng-Gang Zou ◽  
Ke-Qin Zhang
Keyword(s):  
Nuclear Receptor ◽  
Meloidogyne Incognita ◽  
Second Stage ◽  
Plant Parasite

scholarly journals Interactions between an above-ground plant parasite and below-ground ectomycorrhizal fungal communities on pinyon pine

2006 ◽  
Vol 94 (2) ◽  
pp. 276-284 ◽  
Author(s):  
REBECCA C. MUELLER ◽  
CATHERINE A. GEHRING
Keyword(s):  
Fungal Communities ◽  
Plant Parasite ◽  
Below Ground ◽  
Pinyon Pine

Inverse relationship between the nematode maturity index and plant parasite index under enriched nutrient conditions

1997 ◽  
Vol 6 (2) ◽  
pp. 195-199 ◽  
Author(s):  
Tom Bongers ◽  
Hans van der Meulen ◽  
Gerard Korthals
Keyword(s):  
Inverse Relationship ◽  
Maturity Index ◽  
Plant Parasite ◽  
Nutrient Conditions

Tretovularia villiana. [Descriptions of Fungi and Bacteria].

2016 ◽  
Author(s):  
T. V. Andrianova
Keyword(s):  
Geographical Distribution ◽  
Host Plants ◽  
Economic Impacts ◽  
Conservation Status ◽  
Plant Parasite ◽  
Kaliningrad Oblast

Abstract A description is provided for Tretovularia villiana, a plant parasite, apparently obligately associated with its host plants, causing a leafspot disease, with records on living, dying and dead leaves. Some information on its dispersal and transmission and conservation status is given, along with details of its geographical distribution (Africa (Morocco), Asia (Armenia, China, Georgia, Turkmenistan), Europe (Austria, Denmark, France, Germany, Hungary, Latvia, Lithuania, Poland, Romania, Russia (Kabardino-Balkar Republic, Kaliningrad oblast, Pskov oblast, Tambov oblast), Sweden, Ukraine)) and hosts (Vicia spp.). No reports of negative economic impacts of this fungus have been found.

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