scholarly journals Genotype‐specific effects of ericoid mycorrhizae on floral traits and reproduction in Vaccinium corymbosum

2019 ◽  
Vol 106 (11) ◽  
pp. 1412-1422
Author(s):  
Alison K. Brody ◽  
Benjamin Waterman ◽  
Taylor H. Ricketts ◽  
Allyson L. Degrassi ◽  
Jonathan B. González ◽  
...  
Keyword(s):  
Vaccinium Corymbosum ◽  
Floral Traits ◽  
Ericoid Mycorrhizae ◽  
Specific Effects

scholarly journals 564 Screening Commercial Peat and Peat-based Products for the Presence of Ericoid Mycorrhizae

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 493B-493
Author(s):  
Mark Starrett
Keyword(s):  
Mycorrhizal Fungi ◽  
Fungal Growth ◽  
Vaccinium Corymbosum ◽  
Growth Characteristics ◽  
Northeastern United States ◽  
Root Cells ◽  
Ericoid Mycorrhizae ◽  
Seedling Roots ◽  
Test Plants ◽  
Ericoid Fungi

A study was conducted to investigate the presence of ericoid mycorrhizal fungi in select peat and peat-based products. Vaccinium corymbosum, a known host of ericoid fungi, was used as a model plant. Peat and peat-based products were obtained from all major sources that supply the northeastern United States. Seedling roots were examined and average percent colonization was determined for each sample. Results indicate that these fungi are present in the majority of peat and peat-based media tested. Seedlings grown in some of the selected media exhibited an increased percentage of colonized root cells. Mycorrhizal fungi colonizing roots of test plants were isolated. These fungi exhibited typical ericoid fungal growth characteristics.

scholarly journals Colonization of blueberry (Vaccinium corymbosum) plantlets by ericoid mycorrhizae under nursery conditions

2015 ◽  
Vol 42 (3) ◽  
pp. 5-5
Author(s):  
Rubén Carrillo ◽  
Jaime Guerrero ◽  
Mario Rodríguez ◽  
Cristian Meriño-Gergichevich
Keyword(s):  
Vaccinium Corymbosum ◽  
Ericoid Mycorrhizae

Nitrogen Acquisition Efficiency of Ericoid Mycorrhizae in High-bush Blueberry (Vaccinium corymbosum L.) Plants

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 467f-468
Author(s):  
Wei Qiang Yang ◽  
Barbara L. Goulart ◽  
K. Demchak
Keyword(s):  
Mycorrhizal Fungi ◽  
Protease Activity ◽  
Dry Weight ◽  
Vaccinium Corymbosum ◽  
Extracellular Protease ◽  
Organic N ◽  
Inorganic N ◽  
Nitrogen Acquisition ◽  
Ericoid Mycorrhizae ◽  
Extracellular Protease Activity

In laboratory and growth room experiments, protease activity among a diverse group of ericoid mycorrhizal fungi (isolated from two native and two commercial blueberry sites) was screened via a sensitive fluorescent assay and the efficiencies of mycorrhizal symbionts to use organic (a protein) and inorganic N were determined. There were differences in extracellular protease activity among mycorrhizal isolates within the same genera. Two isolates from a native blueberry site showed the highest extracellular protease activity. Plants inoculated with these two isolates produced more dry weight as compared to the control or plants inoculated with other isolates with lower protease activity when protein was used as the sole nitrogen source. These results suggested that some of the mycorrhizal isolates from native blueberry sites might be more efficient in acquiring soil organic N than those isolated from commercial blueberry sites. This possibility was further examined by using 15N and the results from 15N labeling will be discussed. Our study indicated that it was possible to isolate and identify ericoid mycorrhizal fungal strains which might be useful to increase the host's ability to utilize soil organic N sources.

scholarly journals Host Range of a Select Isolate of the Beneficial Ericoid Mycorrhizal Fungus Hymenoscyphus ericae

HortScience ◽  
2000 ◽  
Vol 35 (5) ◽  
pp. 827C-827
Author(s):  
Nicole R. Gorman ◽  
Mark C. Starrett
Keyword(s):  
Host Range ◽  
Mycorrhizal Fungus ◽  
Calluna Vulgaris ◽  
Vaccinium Corymbosum ◽  
Negative Control ◽  
Culture Collection ◽  
Hymenoscyphus Ericae ◽  
Ericoid Mycorrhizae ◽  
Commercial Applications ◽  
Ericoid Mycorrhizal Fungus

Studies were conducted to examine the host range of a select isolate of the ericoid mycorrhizal fungus, Hymenoscyphus ericae (Read) Korf and Kernan [American Type Culture Collection (ATCC) #32985]. Host status was tested for 15 ericaceous species, including Calluna vulgaris, Enkianthus campanulatus, Gaultheria procumbens, Kalmia latifolia, Leucothoe fontanesiana, Oxydendrum arboreum, Pieris floribunda, Rhododendron calendulaceum, Rhododendron carolinianum, Rhododendron catawbiense, Rhododendron maximum, Rhododendron mucronulatum, Vaccinium corymbosum, and Vaccinium macrocarpon. Arbutus unedo, an ericaceous species that forms arbutoid, not ericoid, mycorrhizae was used as a negative control. All of the species were colonized by the ericoid isolate with the exception of Enkianthus campanulatus and the negative control. The benefits of the association and possible commercial applications are discussed.

Structure and Nanostructure of the Outer Tangential Epidermal Cell Wall in Vaccinium corymbosum L. (Blueberry) Fruits by Blanching, Freezing-Thawing and Ultrasound

2006 ◽  
Vol 12 (3) ◽  
pp. 241-251 ◽  
Author(s):  
J. Fava ◽  
S. M. Alzamora ◽  
M. A. Castro
Keyword(s):  
Cell Wall ◽  
Electron Microscope ◽  
Epidermal Cell ◽  
Vaccinium Corymbosum ◽  
Environmental Scanning ◽  
Specific Effects ◽  
Atomic Force ◽  
Transmission Electron ◽  
Epidermal Cell Wall ◽  
Cell Changes

The design of minimal technologies for blueberries preservation requires, among others, the knowledge of structural and ultrastructural cell changes during the processing. This work examined the main structural alterations that occurred in the outer tangential epidermal cell wall of fruits of Vaccinium corymbosum L. (blueberries) due to blanching, freezing-thawing and ultrasound. Light microscope (LM), environmental scanning electron microscope (ESEM), transmission electron microscope (TEM) and atomic force microscope (AFM) observations were analysed and discussed. Each treatment produced specific effects on the outer tangential epidermal cell wall of the epicarp: swelling and rupture of the inner and outer tangential cell wall by blanching; and cell wall shrinkage and rupture by ultrasound; and folding and compression of the epicarp by freezing-thawing. After treatments, a delimited transition between the cuticle, the cutinised layer and the cellulosic layer on the outer tangential epidermal cell wall was observed in all treated fruits.

The Impact of Visual Stereotypes on Judgments about Rape

2016 ◽  
Vol 75 (3) ◽  
pp. 133-140
Author(s):  
Robert Busching ◽  
Johannes Lutz
Keyword(s):  
Mental Representations ◽  
Irrelevant Information ◽  
Clear Distinction ◽  
Rape Myth ◽  
Facial Features ◽  
Reverse Correlation ◽  
Correlation Technique ◽  
Specific Effects ◽  
Legal Judgments ◽  
The Impact

Abstract. Legally irrelevant information like facial features is used to form judgments about rape cases. Using a reverse-correlation technique, it is possible to visualize criminal stereotypes and test whether these representations influence judgments. In the first step, images of the stereotypical faces of a rapist, a thief, and a lifesaver were generated. These images showed a clear distinction between the lifesaver and the two criminal representations, but the criminal representations were rather similar. In the next step, the images were presented together with rape scenarios, and participants (N = 153) indicated the defendant’s level of liability. Participants with high rape myth acceptance scores attributed a lower level of liability to a defendant who resembled a stereotypical lifesaver. However, no specific effects of the image of the stereotypical rapist compared to the stereotypical thief were found. We discuss the findings with respect to the influence of visual stereotypes on legal judgments and the nature of these mental representations.

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