The 'known' genetic potential for microbial communities to degrade organic phosphorus is reduced in low-pH soils.
The 'known' genetic potential for microbial communities to degrade organic phosphorus is reduced in low-pH soils.
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DOI：
10.1002/mbo3.474
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发表时间：
2017-08
期刊：
影响因子：
3.4
通讯作者：
Wellington EMH
中科院分区：
文献类型：
--
作者：
Lidbury IDEA;Fraser T;Murphy ARJ;Scanlan DJ;Bending GD;Jones AME;Moore JD;Goodall A;Tibbett M;Hammond JP;Wellington EMH
在土壤中，生物可利用的无机正磷酸盐浓度很低，因此限制了生物生长。为了克服这种磷缺乏，植物和细菌分泌许多酶，即酸性和碱性磷酸酶，其从各种有机磷底物中切割正磷酸盐。使用剖面隐马尔可夫建模方法，我们研究了从pH值不同的土壤中检索到的宏基因组中各种非特异性磷酸酶（酸性和碱性）的丰度。该分析揭示了低pH值土壤中各种碱性磷酸酶的丰度和多样性的显着减少，这并没有被酸性磷酸酶的增加所抵消。此外，还发现在整合微生物基因组数据库中保藏的来自不同门的细菌菌株中只有一半具有碱性磷酸酶。综上所述，我们的数据表明，这些“缺乏磷酸酶”的菌株可能会在低pH值土壤中增加，未来的研究应该确定这些细菌如何克服磷缺乏。
In soil, bioavailable inorganic orthophosphate is found at low concentrations and thus limits biological growth. To overcome this phosphorus scarcity, plants and bacteria secrete numerous enzymes, namely acid and alkaline phosphatases, which cleave orthophosphate from various organic phosphorus substrates. Using profile hidden Markov modeling approaches, we investigated the abundance of various non specific phosphatases, both acid and alkaline, in metagenomes retrieved from soils with contrasting pH regimes. This analysis uncovered a marked reduction in the abundance and diversity of various alkaline phosphatases in low‐pH soils that was not counterbalanced by an increase in acid phosphatases. Furthermore, it was also discovered that only half of the bacterial strains from different phyla deposited in the Integrated Microbial Genomes database harbor alkaline phosphatases. Taken together, our data suggests that these ‘phosphatase lacking’ isolates likely increase in low‐pH soils and future research should ascertain how these bacteria overcome phosphorus scarcity.
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DOI：
10.5455/aim.2012.20.167-173
发表时间：
2012-09
期刊：
Acta informatica medica : AIM : journal of the Society for Medical Informatics of Bosnia & Herzegovina : casopis Drustva za medicinsku informatiku BiH
影响因子：
--
作者：
U Gandhi N;B Chandra S
通讯作者：
B Chandra S
影响因子：
3.2
作者：
ROY, NK;GHOSH, RK;DAS, J
通讯作者：
DAS, J
影响因子：
2.8
作者：
THALLER, MC;BERLUTTI, F;ROSSOLINI, GM
通讯作者：
ROSSOLINI, GM
影响因子：
5.1
作者：
Lidbury ID;Murphy AR;Scanlan DJ;Bending GD;Jones AM;Moore JD;Goodall A;Hammond JP;Wellington EM
通讯作者：
Wellington EM
影响因子：
3.2
作者：
Antelmann, H;Scharf, C;Hecker, M
通讯作者：
Hecker, M