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?

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?
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跨生物群体,植物系统发育和宿主组织的内生物的多样性和分布:我们走了多远,我们从这里去哪里?

DOI:
10.1111/1462-2920.14968
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发表时间:
2020-06
影响因子:
5.1
通讯作者:
Griffin EA
Griffin EA
中科院分区:
生物学2区
文献类型:
--
作者:
Harrison JG;Griffin EA

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植物的内部被各种微生物定居,这些微生物被称为内生菌。在过去的几十年里,内生菌受到了极大的关注,但关于其生物多样性在局部到全球范围内的格局,许多问题仍然没有得到回答。为了描述到目前为止的研究成果,我们综合了约600项已发表研究的结果。我们的调查揭示了全球的研究兴趣,并突出了知识方面的几个差距。例如,在我们调查的17个生物群落中,有7个没有得到充分的研究,加起来只占我们考虑的研究的7%。我们发现,在30%的胚芽植物家族中,至少有一种寄主具有真菌内生菌多样性,而只有10.5%的家族在寄主中发现了细菌内生真菌。我们用计票程序对我们的调查表示赞赏,以确定植物组织类型中的内生菌丰富度模式。我们发现,不同寄主的生长习性不同,地上组织内生菌群落的变化也不同。在木本植物中,茎是最丰富的组织,而根是禾本科植物中最丰富的组织。对于杂草,我们发现不同研究之间在相对组织丰富度方面没有一致的差异。我们提出了未来的方向,以填补我们发现的知识空白,并启发进一步的研究。
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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