Auxin Production by Phylloplane Fungi

Nature ◽  
1971 ◽  
Vol 231 (5301) ◽  
pp. 332-332 ◽  
Author(s):  
N. G. BUCKLEY ◽  
G. J. F. PUGH
Keyword(s):  
Auxin Production ◽  
Phylloplane Fungi

scholarly journals Transcriptomics differentiate two novel bioactive strains of Paenibacillus sp. isolated from the perennial ryegrass seed microbiome

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tongda Li ◽  
Ross Mann ◽  
Jatinder Kaur ◽  
German Spangenberg ◽  
Timothy Sawbridge
Keyword(s):  
Nitrogen Fixation ◽  
Secondary Metabolite ◽  
Perennial Ryegrass ◽  
Fusarium Verticillioides ◽  
In Vitro Assays ◽  
Colletotrichum Graminicola ◽  
Nitrogen Fixation Activity ◽  
Auxin Production ◽  
Paenibacillus Sp

AbstractPaenibacillus species are Gram-positive bacteria that have been isolated from a diverse array of plant species and soils, with some species exhibiting plant growth-promoting (PGP) activities. Here we report two strains (S02 and S25) of a novel Paenibacillus sp. that were isolated from perennial ryegrass (Lolium perenne) seeds. Comparative genomics analyses showed this novel species was closely related to P. polymyxa. Genomic analyses revealed that strains S02 and S25 possess PGP genes associated with biological nitrogen fixation, phosphate solubilisation and assimilation, as well as auxin production and transportation. Moreover, secondary metabolite gene cluster analyses identified 13 clusters that are shared by both strains and three clusters unique to S25. In vitro assays demonstrated strong bioprotection activity against phytopathogens (Colletotrichum graminicola and Fusarium verticillioides), particularly for strain S02. A transcriptomics analysis evaluating nitrogen fixation activity showed both strains carry an expressed nif operon, but strain S02 was more active than strain S25 in nitrogen-free media. Another transcriptomics analysis evaluating the interaction of strains with F. verticillioides showed strain S02 had increased expression of core genes of secondary metabolite clusters (fusaricidin, paenilan, tridecaptin and polymyxin) when F. verticillioides was present and absent, compared to S25. Such bioactivities make strain S02 a promising candidate to be developed as a combined biofertiliser/bioprotectant.

Increased Endogenous Auxin Production in Arabidopsis thaliana Causes Both Earlier Described and Novel Auxin-Related Phenotypes

2003 ◽  
Vol 22 (3) ◽  
pp. 240-252 ◽  
Author(s):  
Eric van der Graaff ◽  
Kees Boot ◽  
Roger Granbom ◽  
Goran Sandberg ◽  
Paul J. J. Hooykaas
Keyword(s):  
Arabidopsis Thaliana ◽  
Endogenous Auxin ◽  
Auxin Production

Regulation of algal and cyanobacterial auxin production, physiology, and application in agriculture: an overview

2021 ◽  
Author(s):  
Cheng-Yau Tan ◽  
Ian Charles Dodd ◽  
Jit Ern Chen ◽  
Siew-Moi Phang ◽  
Chiew Foan Chin ◽  
...  
Keyword(s):  
Auxin Production

scholarly journals Seasonal fluctuations of phyllosphere and phylloplane fungi of Egyptian wheat

2014 ◽  
Vol 21 (1) ◽  
pp. 109-116 ◽  
Author(s):  
M. B. Mazen ◽  
S. I. Abdel-Hafez ◽  
G. M. Shaban
Keyword(s):  
Aspergillus Niger ◽  
Alternaria Alternata ◽  
Seasonal Fluctuations ◽  
Frequent Species ◽  
Phylloplane Fungi

Forty-nine species and 20 genera were collected irora the phyllosphere and phylloplane of wheat plants on 1% glucose and 50% sucrose-Czapek's agar at 28°C. The total counts of phyllospbere and phylloplane fungi displayed seasonal periodicities and the highest counts were found in April and May 1977, 1978. In the case of phyllosphere the most frequent species were <i>Aspergillus niger, Penicillium corylophilum</i> and <i>Alternaria alternata</i>; in the phylloplane <i>Aspergillus niger</i> and <i>A. flavus</i>.

Auxin production couples endosperm development to fertilization

Nature Plants ◽  
2015 ◽  
Vol 1 (12) ◽  
Author(s):  
Duarte D. Figueiredo ◽  
Rita A. Batista ◽  
Pawel J. Roszak ◽  
Claudia Köhler
Keyword(s):  
Endosperm Development ◽  
Auxin Production

Auxin Production of Three Phytopathogenic Fungi

Mycologia ◽  
1972 ◽  
Vol 64 (5) ◽  
pp. 1180 ◽  
Author(s):  
M. Gunasekaran ◽  
D. J. Weber
Keyword(s):  
Phytopathogenic Fungi ◽  
Auxin Production

Microfungal succession on living leaves of Populus tremuloides

1979 ◽  
Vol 57 (24) ◽  
pp. 2800-2811 ◽  
Author(s):  
H. G. Wildman ◽  
D. Parkinson
Keyword(s):  
Populus Tremuloides ◽  
Aureobasidium Pullulans ◽  
Hyphal Growth ◽  
Limited Range ◽  
Tree Canopy ◽  
Fungal Colonization ◽  
Phylloplane Fungi ◽  
Sampling Height ◽  
Fallen Leaves ◽  
Poplar Leaves

The microfungal succession on the surfaces and interior of attached aspen poplar leaves was followed throughout a growing season at three heights in the tree canopy using a number of isolation and observational techniques. The fungal succession on and within the leaves was in general similar to that reported for other angiosperm leaves. The outer sheathing bud scales were colonized by a limited range of fungi, but the enclosed leaves were free from fungal colonization. The adaxial surfaces of young newly expanded leaves were sparsely colonized by fungi. As the leaves matured they were extensively colonized by the common phylloplane fungi (pink and white yeasts, Aureobasidium pullulans, Cladosporium spp., Alternaria alternata, and Epicoccum purpurascens) especially on the adaxial surface. At senescence both leaf surfaces had extensive hyphal growth on them and a greater internal colonization by phylloplane fungi had occurred. Common phylloplane fungi were less frequently isolated from freshly fallen leaves than from the senescent leaves, but a sterile dark species was frequently isolated from within them. The height of the leaves in the canopy was shown to influence the mycoflora of the aspen poplar leaves, with certain species (the yeasts, Aureobasidium pullulans, Cladosporium spp., and Botrytis cinerea) showing changes in their frequency with sampling height.

Evidence for Auxin Production in Isolated Roots Growing In vitro

1939 ◽  
Vol 101 (2) ◽  
pp. 450-456 ◽  
Author(s):  
J. van Overbeek
Keyword(s):  
Auxin Production ◽  
Isolated Roots

Auxin Production by Symbiotic Fungi: Bioassay and HPLC-MS Analysis

2009 ◽  
pp. 381-392 ◽  
Author(s):  
Anke Sirrenberg ◽  
Richard Splivallo ◽  
Astrid Ratzinger ◽  
Katharina Pawlowski ◽  
Petr Karlovsky
Keyword(s):  
Auxin Production ◽  
Ms Analysis ◽  
Symbiotic Fungi
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