Enhanced competitive advantage of invasive plants by growth-defense trade-off: Evidence from phytohormone metabolism and transcriptomic analysis

Invasive plants often exhibit a competitive advantage over native species, posing a serious threat to them. Phytohormone signaling can regulate the entire process of invasive plant growth and defense in ways that have largely unexplored for invaders in competitive conditions. Here, we planted an invasive species, Flaveria bidentis L., and three native species (Setaria viridis, Artemisia annua, and Xanthium sibiricum) as monocultures (two seedlings each) or mixtures (one F. bidentis with one native) in the greenhouse, then employed phytohormone metabolomics and transcriptomics to investigate the changes in hormone content and their gene expression patterns in F. bidentis during competitive processes with native plants. Our results revealed that during competition processes with three native species, the levels of growth-promoting hormones, auxin (IAA) and gibberellins (GA3), significantly increased in F. bidentis. These hormone increases were accompanied by the key up-regulation of genes..., , , # Enhanced competitive advantage of invasive plants by growth-defense trade-off: Evidence from phytohormone metabolism and transcriptomic analysis

[https://doi.org/10.5061/dryad.mgqnk998t](https://doi.org/10.5061/dryad.mgqnk998t)

## Description of the data and file structure

This dataset contains nine .xlsx files, each focusing on different plant parameters. The files are named and structured as follows:

Files and variables

##### File:

##### File 1: Data1\_Plant height : This file records plant height measurements

* **Variable**: Plant Height

- **Unit**: Centimeters (cm)

##### File 2: Data2\_Total biomass: This file records plant biomass measurements

* **Variable**: Biomass
* **Unit**: Grams (g)

##### File 3: Data3\_Relative growth rate: This file records plant growth rate measurements

* **Variable**: Growth Rate
* **Unit**: Milligrams per day (mg/day)

##### File 4: Data4\_Auxin content: This file records plant auxin content

* **Variable**: Auxin content
* **Unit**: Nano...

入侵植物通常相较于本土物种具备竞争优势，对本土植物构成严重威胁。植物激素信号通路可调控入侵植物生长与防御的全过程，但在竞争环境下，入侵植物的此类调控方式在很大程度上尚未得到充分探索。本研究于温室中种植入侵物种黄顶菊（*Flaveria bidentis* L.）以及3种本土物种：狗尾草（*Setaria viridis*）、黄花蒿（*Artemisia annua*）和苍耳（*Xanthium sibiricum*），设置单种栽培（每盆2株幼苗）与混种栽培（每盆1株黄顶菊搭配1株本土植物）两种处理；随后采用植物激素代谢组学（phytohormone metabolomics）与转录组学（transcriptomics）技术，探究黄顶菊在与本土植物竞争过程中，体内激素含量及其基因表达模式的变化。研究结果显示，在与3种本土植物竞争时，黄顶菊体内促进生长的激素——生长素（auxin, IAA）与赤霉素（gibberellins, GA3）——的含量显著升高；此类激素水平的升高伴随关键基因的上调表达……
# 基于植物激素代谢与转录组分析揭示生长-防御权衡提升入侵植物竞争优势
[https://doi.org/10.5061/dryad.mgqnk998t](https://doi.org/10.5061/dryad.mgqnk998t)

## 数据集与文件结构说明
本数据集包含9个.xlsx格式文件，分别对应不同的植物相关参数。各文件命名与结构如下：

### 文件与变量
##### 文件：
##### 文件1：Data1_Plant height：本文件记录植物株高测量数据
* **变量**：株高
- **单位**：厘米（cm）

##### 文件2：Data2_Total biomass：本文件记录植物生物量测量数据
* **变量**：生物量
- **单位**：克（g）

##### 文件3：Data3_Relative growth rate：本文件记录植物相对生长速率测量数据
* **变量**：生长速率
- **单位**：毫克/天（mg/day）

##### 文件4：Data4_Auxin content：本文件记录植物生长素含量测量数据
* **变量**：生长素含量
- **单位**：纳克（原文未完整标注）