The Host Range of Multi-Host Endophytic Fungi

Suryanarayanan, T. S.; Devarajan, P. T.; Girivasan, K. P.; Govindarajulu, M.B.; Kumaresan, V.; Murali, Thokur Sreepathy; Rajamani, T.; Thirunavukkarasu, N.; Venkatesan, G.

doi:10.18520/cs/v115/i10/1963-1969

Cited by 39 publications

(22 citation statements)

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“…The broad host range as well as the high colonization frequency of Xylariales observed in the present study is noteworthy and corroborated with Yu et al [16]. It has also been proven several times that members of Xylariales establish an endophytic association with taxonomically unrelated plants, which are geographically isolated [26][27][28][29][30]. Indeed the host acquisition ability of Xylaria as an endophyte is high, and it has been isolated from plants belonging to 3 divisions (including liverworts and higher plants) and occurring on 2 continents [31].…”

Section: Discussionsupporting

confidence: 90%

“…Indeed the host acquisition ability of Xylaria as an endophyte is high, and it has been isolated from plants belonging to 3 divisions (including liverworts and higher plants) and occurring on 2 continents [31]. In our investigations in the forests near the locations from which the lichens were col- lected in the present study, we isolated species of Xylaria as foliar endophytes [30]. Xylaria apiculata, occurring as endolichenic fungus in Arthonia in the present study, exhibits both decomposer and endophytic life strategies in tropical forests [28].…”

Section: Discussionmentioning

confidence: 70%

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Endolichenic fungal diversity associated with some lichens of the Western Ghats

et al. 2019

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A total of 389 strains of fungi belonging to 38 species were isolated from 10 lichen species of the Western Ghats, southern India. All the lichens screened, irrespective of their growth forms or location, harboured endolichenic fungi. Most of the fungi belonged to the Ascomycotina. Chaetomium sp. 1, Hypoxylon investiens, Nemania bipapillata, Nodulisporium sp., Paecilomyces sp., and Sporormiella intermedia were the most common ones and were present in 5 or more lichen species. Of the 28 sporulating fungi, 7 belonged to Xylariales, and their total colonization frequency in all the lichens was also high. This observation further substantiates the high ecological amplitude of Xylariales, possibly due to overlapping ecological niches and their ability to inhibit co-occurring endolichenic fungi.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 70%

Endolichenic fungal diversity associated with some lichens of the Western Ghats

et al. 2019

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“…It is true that many cultivable endophytic taxa are known to have broad host ranges (e.g. Arnold and Lutzoni, ; Suryanarayanan et al ., ), thus one could argue that an understanding of endophyte biodiversity does not hinge on thorough sampling of potential host taxa. However, we note that, in the majority of multivariate studies of endophyte biogeography, host taxon is a supported predictor of assemblage variation (Griffin et al ., ; Kivlin et al ., ) – albeit a sometimes modest one (Vincent et al ., ).…”

Section: Discussionmentioning

confidence: 99%

The diversity and distribution of endophytes across biomes, plant phylogeny and host tissues: how far have we come and where do we go from here?

Harrison

Griffin

2020

Environmental Microbiology

132

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The interiors of plants are colonized by diverse microorganisms that are referred to as endophytes. Endophytes have received much attention over the past few decades, yet many questions remain unanswered regarding patterns in their biodiversity at local to global scales. To characterize research effort to date, we synthesized results from~600 published studies. Our survey revealed a global research interest and highlighted several gaps in knowledge. For instance, of the 17 biomes encompassed by our survey, 7 were understudied and together composed only 7% of the studies that we considered. We found that fungal endophyte diversity has been characterized in at least one host from 30% of embryophyte families, while bacterial endophytes have been surveyed in hosts from only 10.5% of families. We complimented our survey with a vote counting procedure to determine endophyte richness patterns among plant tissue types. We found that variation in endophyte assemblages in above-ground tissues varied with host growth habit. Stems were the richest tissue in woody plants, whereas roots were the richest tissue in graminoids. For forbs, we found no consistent differences in relative tissue richness among studies. We propose future directions to fill the gaps in knowledge we uncovered and inspire further research.

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“…They are also known to produce pharmaceutically important secondary metabolites and enzymes (Shweta et al, 2010;Kusari et al, 2013;Kaushik et al, 2014;Kumara et al, 2014;Nagarajan et al, 2014;Uzma et al, 2019) and phytohormones (Bilal et al, 2017(Bilal et al, , 2018. In the past few decades, it became obvious that endophytes could be isolated from every plant studied (Strobel and Daisy, 2003;Hardoim et al, 2015;Suryanarayanan et al, 2018a;Giauque et al, 2019). These analyses showed that many attributes of endophytes, in particular their universal occurrence, sustained presence in plants, non-pathogenic nature, ability to enhance the biotic and abiotic stress tolerance of their plant hosts (Rodriguez et al, 2009), increase access to soil nutrients and increase the plant yield (White et al, 2019;Xia et al, 2019) project them as candidates holding high promise for use in crop improvement.…”

Section: Introductionmentioning

confidence: 99%

Fungal Endophyte-Mediated Crop Improvement: The Way Ahead

et al. 2020

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Endophytes are non-disease causing microbes (bacteria and fungi) surviving in living tissues of plants. Their intimate association and possible coevolution with their plant partners have resulted in them contributing to an array of plant growth benefits ranging from enhanced growth and biomass accumulation, tolerance to abiotic and biotic stresses and in nutrient acquisition. The last couple of decades have witnessed a burgeoning literature on the role of endophytes (Class 3 type) in regulating plant growth and development and their adaptation to abiotic and biotic stresses. Though the underlying mechanisms of plant-endophyte interactions are far from clear, several studies have raised the hope of their potential application in agriculture, especially in mitigating abiotic and biotic stresses. The use of endophytes is envisaged as a route to reduce the production cost and burden on the environment by lessening the dependence on breeding for crop improvement and agrochemicals. Unfortunately, save a few well documented examples of their use, a little of these insights has been translated into actual agricultural applications. Here, we reflect on this paucity and elaborate on some of the important bottlenecks that might stand in way of fully realizing the potential that endophytes hold for crop improvement. We stress the need to study various facets of the endophyte-plant association for their gainful application in agriculture.

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The Host Range of Multi-Host Endophytic Fungi

Abstract: Mature leaves of 224 angiosperm plant species belonging to 60 families and growing in Andaman Islands, and the states of Arunachal Pradesh, Kerala and Tamil Nadu were sampled for the presence of endophytic fungi. Fungal genera such as Alternaria, Arthrinium,

Cited by 39 publications

References 23 publications

Endolichenic fungal diversity associated with some lichens of the Western Ghats

Endolichenic fungal diversity associated with some lichens of the Western Ghats

The diversity and distribution of endophytes across biomes, plant phylogeny and host tissues: how far have we come and where do we go from here?

Fungal Endophyte-Mediated Crop Improvement: The Way Ahead

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