Leaf Exudates of <i>Vicia faba</i> and their Effects on <i>Botrytis fabae</i> and Some Associated Fungi

Migahed, Fatma F.; Nofel, A. M.

doi:10.1080/12298093.2001.12015788

Cited by 3 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Amino acid alanine promoted spore germination of Rhizopus oligosporus but proline negatively affected the spore germination ( Thanh et al, 2005 ). Amino acids such as serine, alanine, glutamic acid, arginine and methionine inhibited conidial germination of A. alternata, whereas aspartic acid, phenylalanine and threonine stimulated the germination ( Migahed and Nofel, 2001 ). The present study on in vitro regulation of the conidial germination suggests that metabolic process of non-protein amino acid BABA within the fungal cells during the germination also remains investigated.…”

Section: Discussionmentioning

confidence: 99%

β-Amino-n-butyric Acid Regulates Seedling Growth and Disease Resistance of Kimchi Cabbage

Kim

Lee

et al. 2013

The Plant Pathology Journal

View full text Add to dashboard Cite

Non-protein amino acid, β-amino-n-butyric acid (BABA), has been involved in diverse physiological processes including seedling growth, stress tolerance and disease resistance of many plant species. In the current study, treatment of kimchi cabbage seedlings with BABA significantly reduced primary root elongation and cotyledon development in a dose-dependent manner, which adverse effects were similar to the plant response to exogenous abscisic acid (ABA) application. BABA was synergistically contributing ABA-induced growth arrest during the early seedling development. Kimchi cabbage leaves were highly damaged and seedling growth was delayed by foliar spraying with high concentrations of BABA (10 to 20 mM). BABA played roles differentially in in vitro fungal conidial germination, mycelial growth and conidation of necrotroph Alternaria brassicicola causing black spot disease and hemibiotroph Colletotrichum higginsianum causing anthracnose. Pretreatment with BABA conferred induced resistance of the kimchi cabbage against challenges by the two different classes of fungal pathogens in a dose-dependent manner. These results suggest that BABA is involved in plant development, fungal development as well as induced fungal disease resistance of kimchi cabbage plant.

show abstract

Section: Discussionmentioning

confidence: 99%

β-Amino-n-butyric Acid Regulates Seedling Growth and Disease Resistance of Kimchi Cabbage

Kim

Lee

et al. 2013

The Plant Pathology Journal

View full text Add to dashboard Cite

show abstract

“…These findings suggest that, like fungal endophytes, fungal epiphytes could also protect host plants from disease (e.g., Arnold et al 2003;Saikkonen 2007). Epiphytic fungi may also act as decomposers of plant exudates on living leaves (Jumpponen and Jones 2009;Migahed and Nofel 2001), and as first colonizers they likely play an important role in the initial decomposition of leaves following senescence (Osono et al 2004;Voříšková and Baldrian 2013).…”

Section: Introductionmentioning

confidence: 99%

Plant traits and taxonomy drive host associations in tropical phyllosphere fungal communities

Kembel

MuellerRebecca

2014

Botany

193

176

View full text Add to dashboard Cite

The aerial surface of plants, known as the phyllosphere, represents a widespread and diverse habitat for microbes, but the fungal communities colonizing the surface of leaves are not well characterized, and how these communities are assembled on hosts is unknown. We used high-throughput sequencing of fungal communities on the leaves of 51 tree species in a lowland tropical rainforest in Panama to examine the influence of host plant taxonomy and traits on the fungi colonizing the phyllosphere. Fungal communities on leaves were dominated by the phyla Ascomycota (79% of all sequences), Basidiomycota (11%), and Chytridiomycota (5%). Host plant taxonomic identity explained more than half of the variation in fungal community composition across trees, and numerous host functional traits related to leaf morphology, leaf chemistry, and plant growth and mortality were significantly associated with fungal community structure. Differences in fungal biodiversity among hosts suggest that individual tree species support unique fungal communities and that diverse tropical forests also support a large number of fungal species. Similarities between phyllosphere and decomposer communities suggest that fungi inhabiting living leaves may have significant roles in ecosystem functioning in tropical forests.Résumé : La surface aérienne des plantes, connue sous le nom de phyllosphère, constitue un habitat étendu et varié pour les microbes, mais les communautés fongiques qui colonisent la surface des feuilles ne sont pas bien caractérisées, et la façon par laquelle ces communautés sont assemblées sur les hôtes est inconnue. Nous avons utilisé le séquençage à haut débit des communautés fongiques présentes sur les feuilles de 51 espèces d'arbres dans une basse terre de la forêt tropicale du Panama afin d'examiner l'influence de la taxonomie et des traits de la plante hôte sur les champignons qui colonisent la phyllosphère. Les communautés fongiques présentes sur les feuilles étaient dominées par les phylums des Ascomycota (79 % de toutes les séquences), des Basidiomycota (11 %) et des Chytridiomycota (5 %). L'identité taxonomique des plantes hôtes expliquait plus de la moitié de la variation de la composition de la communauté fongique sur tous les arbres, et de nombreux traits fonctionnels reliés à la morphologie des feuilles, à la chimie des feuilles ainsi qu'à la croissance et à la mortalité de la plante étaient significativement associées à la structure de la communauté fongique. Les différences dans la biodiversité fongique en fonction de l'hôte suggèrent que les espèces individuelles d'arbres supportent des communautés fongiques uniques, et que les forêts tropicales variées supportent aussi un grand nombre d'espèces de champignons. Les similarités entre les communautés de la phyllosphère et les communautés saprophages suggèrent que les champignons qui résident sur les feuilles vivantes peuvent jouer un rôle significatif dans le fonctionnement de l'écosystème dans les forêts tropicales. [Traduit par la Rédaction] Mots-clés : champignons...

show abstract

Escherichia coli O157:H7 Survival and Growth on Lettuce Is Altered by the Presence of Epiphytic Bacteria

Cooley

Chao

Mandrell

2006

Journal of Food Protection

150

View full text Add to dashboard Cite

Escherichia coli O157:H7 can survive in low numbers in soil and on plants. Occasionally, conditions may occur in the field that lead to contamination of produce. Survival of enteric pathogens in the field is controlled to a certain extent by complex interactions with indigenous soilborne and seedborne epiphytes. Identifying these interactions may assist in developing strategies to improve produce safety. Two epiphytes were isolated from pathogen-contaminated plants that interact differently with E. coli O157:H7. Wausteria paucula enhanced the survival of E. coli O157:H7 six-fold on lettuce foliage grown from coinoculated lettuce seed. In contrast, Enterobacter asburiae decreased E. coli O157:H7 survival 20- to 30-fold on foliage. Competition also occurred in the rhizosphere and in plant exudate. This competition may be the result of E. asburiae utilization of several of the carbon and nitrogen substrates typically present in exudate and also used by E. coli O157:H7. Hence, competition observed on the plant may involve one or more nutrients provided by the plant. In contrast, a different mechanism may exist between E. coli O157:H7 and W. paucula since commensalism was only observed on foliage, not in the rhizosphere or plant exudate. Good agricultural practices that encourage the growth of competing bacteria, like E. asburiae, may reduce the incidence of produce contamination.

show abstract

Leaf Exudates of Vicia faba and their Effects on Botrytis fabae and Some Associated Fungi

Cited by 3 publications

References 13 publications

β-Amino-n-butyric Acid Regulates Seedling Growth and Disease Resistance of Kimchi Cabbage

β-Amino-n-butyric Acid Regulates Seedling Growth and Disease Resistance of Kimchi Cabbage

Plant traits and taxonomy drive host associations in tropical phyllosphere fungal communities

Escherichia coli O157:H7 Survival and Growth on Lettuce Is Altered by the Presence of Epiphytic Bacteria

Contact Info

Product

Resources

About