Sulfide as a soil phytotoxin-a review.
Sulfide as a soil phytotoxin-a review.
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DOI：
10.3389/fpls.2013.00268
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发表时间：
2013
影响因子：
5.6
通讯作者：
Smolders AJ
中科院分区：
文献类型：
--
作者：
Lamers LP;Govers LL;Janssen IC;Geurts JJ;Van der Welle ME;Van Katwijk MM;Van der Heide T;Roelofs JG;Smolders AJ
在海洋、咸水和淡水系统的湿地土壤和水下沉积物中，由于厌氧过程中微生物还原硫酸盐，可能会积累强植物毒素硫化物，其水平取决于当时的土壤条件。在这篇综述中，我们比较了有关这种还原硫化合物在不同生态系统类型中的植物毒性作用的大量文献，并回顾了硫化物在多个生态系统水平上的影响：单个植物的生态生理功能、植物-微生物关联以及包括竞争和促进相互作用在内的群落效应。最近关于根际多物种相互作用的出版物显示了解释硫化物抗性的更复杂的机制。结论是，硫化物是一种强效植物毒素，在多个层面上深刻影响包括沿海系统在内的各种湿地类型的植物健康和生态系统功能。包括水培方法在内的传统毒性测试通常忽略根际影响，这使得很难将结果外推到真实的生态系统过程。为了解释硫化物在不同组织层面的不同影响，对生物地球化学、植物生理和生态根际过程的深入了解至关重要。这一信息甚至更为重要，因为人为向淡水生态系统输入的硫以及向淡水和海洋系统输入的有机负荷仍然远高于自然水平，并且在亚洲正在急剧增加。此外，全球气候变化导致的气温升高可能导致浅水区硫化物生产率升高。
In wetland soils and underwater sediments of marine, brackish and freshwater systems, the strong phytotoxin sulfide may accumulate as a result of microbial reduction of sulfate during anaerobiosis, its level depending on prevailing edaphic conditions. In this review, we compare an extensive body of literature on phytotoxic effects of this reduced sulfur compound in different ecosystem types, and review the effects of sulfide at multiple ecosystem levels: the ecophysiological functioning of individual plants, plant-microbe associations, and community effects including competition and facilitation interactions. Recent publications on multi-species interactions in the rhizosphere show even more complex mechanisms explaining sulfide resistance. It is concluded that sulfide is a potent phytotoxin, profoundly affecting plant fitness and ecosystem functioning in the full range of wetland types including coastal systems, and at several levels. Traditional toxicity testing including hydroponic approaches generally neglect rhizospheric effects, which makes it difficult to extrapolate results to real ecosystem processes. To explain the differential effects of sulfide at the different organizational levels, profound knowledge about the biogeochemical, plant physiological and ecological rhizosphere processes is vital. This information is even more important, as anthropogenic inputs of sulfur into freshwater ecosystems and organic loads into freshwater and marine systems are still much higher than natural levels, and are steeply increasing in Asia. In addition, higher temperatures as a result of global climate change may lead to higher sulfide production rates in shallow waters.
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影响因子：
2
作者：
Chambers, RM
通讯作者：
Chambers, RM
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通讯作者：
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