Increased nitrogen deposition may promote plant invasion through interfering plant-pathogen interactions

Intensified anthropogenic activities have led to a documented increase in atmospheric nitrogen deposition, which has been shown to impact the growth and herbivore resistance of invasive plant species, thereby contributing to their invasion success. However, the extent to which elevated nitrogen deposition influences plant-pathogen interactions within the context of biological invasions remains unexplored. This study initially investigated the differences in leaf lesion areas between the invasive weed Alternanthera philoxeroides and its local congener, A. sessilis, in different terrestrial ecosystems that experienced various levels of atmospheric nitrogen deposition. Additionally, a laboratory experiment was conducted to assess the changes in pathogen resistance of these two species in response to simulated nitrogen deposition, following artificial infection with a leaf pathogen. The study also investigated alterations in leaf defensive chemicals and phyllosphere microbial communities be..., , , # Title of Dataset: Increased nitrogen deposition may promote plant invasion through interfering plant-pathogen interactions of an invasive plant species and its local congener

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Brief summary of dataset contents, contextualized in experimental procedures and results.
Increased nitrogen deposition may promote plant invasion through interfering plant-pathogen interactions of an invasive plant species and its local congener

## Description of the Data and file structure

In this file, there are six sheets, which include field survey data, plant growth-related traits, leaf chemicals, leaf defensive traits, in vitro toxicity test, Shannon index, and competition results from this study.

The treatment codes were listed as below:

* KCK - *A. philoxeroides* under control treatment
* LCK - *A. sessilis* under control treatment
* KN - *A. philoxeroides* under simulated nitrogen deposition
* LN - *A. sessilis* under simulated nitrogen deposition

The units of field survey data in sheet 1 wer...,