Agricultural Research Service, U.S. Department of Agriculture, Albany, CA, USA.
Department of Plant Science, University of California, Davis, Davis, CA, USA.
J Appl Microbiol. 2019 Mar;126(3):945-953. doi: 10.1111/jam.14169. Epub 2019 Jan 1.
To describe the effects of foliar fertilizer application on the bacterial populations of almond tree leaves.
We applied a commercially available foliar fertilizer or a water control onto the leaves of almond trees and collected leaves after 1, 7, 14 and 56 days and examined their bacterial populations by 16S rRNA gene sequence analysis. After 1 day, we observed significant differences in 3 of the 4 predominant bacterial phyla, and 5 of the 13 predominant bacterial families. After 7 days, we observed significant differences in all of the predominant phyla, and 8 of the 13 predominant families. After 14 days, the number of significant differences decreased, and after 56 days only 2 of the 13 predominant families differed significantly.
Foliar fertilization significantly altered the bacterial population structure of almond leaves as compared to the water control. While most of the observed perturbation was transient, significant differences remained after 56 days.
This is the first report describing the effects of foliar fertilization on the bacterial populations of almond leaves and provides new insights as to how this process alters the leaf bacterial population structure.
描述叶面肥施用对巴旦木树叶细菌种群的影响。
我们将市售叶面肥或水对照施用于巴旦木树叶上，并在施用后 1、7、14 和 56 天收集叶片，通过 16S rRNA 基因序列分析检测其细菌种群。施用后 1 天，我们观察到 4 个主要细菌门中的 3 个和 13 个主要细菌科中的 5 个有显著差异。施用后 7 天，所有主要菌群和 13 个主要科中的 8 个都有显著差异。施用后 14 天，显著差异的数量减少，56 天后只有 13 个主要科中的 2 个有显著差异。
与水对照相比，叶面施肥显著改变了巴旦木叶片的细菌种群结构。虽然观察到的大多数扰动是短暂的，但在 56 天后仍存在显著差异。
这是第一篇描述叶面施肥对巴旦木叶片细菌种群影响的报告，为了解这一过程如何改变叶片细菌种群结构提供了新的见解。
