Transcripts related with ammonium use and effects of gibberellin on expressions of the transcripts responding to ammonium in two invasive and native Xanthium species.
Transcripts related with ammonium use and effects of gibberellin on expressions of the transcripts responding to ammonium in two invasive and native Xanthium species.
复制标题
DOI：
10.3389/fpls.2022.1035137
复制
发表时间：
2022
影响因子：
5.6
通讯作者：
中科院分区：
文献类型：
--
作者：
土壤氮素形态对外来植物入侵具有重要影响。然而，很少有努力已经取得了研究的分子机制的基础上利用不同形式的氮在共存的入侵和本地植物。入侵植物苍耳（Xanthiumstrumarium）对硝酸盐的偏好性大于铵，主要入侵以硝酸盐为主的环境，而与原生同类植物苍耳（Xanthiumstrumarium）共存。西伯利亚优选铵。在这里，我们解决了种间差异的氨利用和赤霉素（GA）的影响的遗传基础。26个与赤霉素生物合成和铵态氮利用相关的转录子被铵态氮诱导。sibiricum，而X. strumarium和没有铵吸收。XsiAMT1.1a、XsiGLN 1.1和XsiGLT 1b可能是X.西伯利亚。在X.西伯利亚。XsiGA 3 OX 1a可能参与了这一调控过程，它也是由铵诱导的。随着铵态氮/硝态氮比例的增加，黄曲霉谷氨酰胺合成酶活性显著增加。sibiricum，而X.甲状腺肿我们的研究是第一个确定入侵植物和本地植物不同地使用铵的分子机制，有助于理解X的入侵机制。strumarium及其入侵生境选择。
Soil nitrogen forms are important for exotic plant invasions. However, little effort has been made to study the molecular mechanisms underlying the utilization of different N forms in co-occurring invasive and native plants. The invasive plant Xanthium strumarium prefers nitrate relative to ammonium, and mainly invades nitrate-dominated environments, while it co-occurring native congener X. sibiricum prefers ammonium. Here, we addressed the genetic bases for the interspecific difference in ammonium use and the effects of gibberellin (GA). Twenty-six transcripts related with GA biosynthesis and ammonium utilization were induced by ammonium in X. sibiricum, while only ten in X. strumarium and none for ammonium uptake. XsiAMT1.1a, XsiGLN1.1 and XsiGLT1b may be crucial for the strong ability to absorb and assimilate ammonium in X. sibiricum. All tested transcripts were significantly up-regulated by GA1 and GA4 in X. sibiricum. XsiGA3OX1a, which was also induced by ammonium, may be involved in this regulation. Consistently, glutamine synthetase activity increased significantly with increasing ammonium-N/nitrate-N ratio for X. sibiricum, while decreased for X. strumarium. Our study is the first to determine the molecular mechanisms with which invasive and native plants use ammonium differently, contributing to understanding the invasion mechanisms of X. strumarium and its invasion habitat selection.
登录
查看更多内容
影响因子：
7.4
作者：
Kaiser, BN;Rawat, SR;Glass, ADM
通讯作者：
Glass, ADM
调节植物生长代谢协调以实现可持续农业
影响因子：
64.8
作者：
Li S;Tian Y;Wu K;Ye Y;Yu J;Zhang J;Liu Q;Hu M;Li H;Tong Y;Harberd NP;Fu X
通讯作者：
Fu X
影响因子：
4.9
作者：
Costa, Claudineia P.;Duennes, Michelle A.;Woodard, S. Hollis
通讯作者：
Woodard, S. Hollis
影响因子：
11.6
作者：
Coschigano, KT;Melo-Oliveira, R;Coruzzi, GM
通讯作者：
Coruzzi, GM
影响因子：
6.9
作者：
Chichkova, S;Arellano, J;Hernández, G
通讯作者：
Hernández, G