Different ectomycorrhizal fungal species impact poplar growth but not phosphorus utilization under low P supply

内翻性腭裂 生物 生物量(生态学) 外生菌根 营养物 菌根 植物 殖民地化 生物量分配 园艺 共生 农学 生态学 化学 细菌 有机化学 遗传学
作者
Huili Shi,Ulrike Lipka,Andrea Polle
出处
期刊:Tree Physiology [Oxford University Press]
卷期号:44 (7)
标识
DOI:10.1093/treephys/tpae074
摘要

Abstract Tree growth is often limited by phosphorus (P) availability. The trade-off between P homeostasis and growth is unknown. Ectomycorrhizal fungi (EMF) facilitate P availability but this trait varies among different fungal species and isolates. Here, we tested the hypotheses that (i) colonization with EMF boosts plant growth under P-limited conditions and that (ii) the poplars show P homeostasis because increased P uptake is used for growth and not for P accumulation in the tissues. We used two P treatments (high phosphate [HP]: 64 μM Pi, low phosphate [LP]: 0.64 μM Pi in the nutrient solution) and four fungal treatments (Paxillus involutus MAJ, Paxillus involutus NAU, Laccaria bicolor dikaryon LBD, Laccaria bicolor monokaryon LBM) in addition to non-inoculated poplar plants (NI) to measure growth, biomass, gas exchange and P contents. High phosphate (HP) stimulated growth compared with LP conditions. Poplars colonized with MAJ, NAU and NI showed higher growth and biomass production than those with LBD or LBM. Photosynthesis rates of poplars with lower biomass production were similar to or higher than those of plants with higher growth rates. The tissue concentrations of P were higher under HP than LP conditions and rarely affected by ectomycorrhizal colonization. Under LP, the plants produced 44% greater biomass per unit of P than under HP. At a given P supply, the tissue concentration was stable irrespective of the growth rate indicating P homeostasis. Laccaria bicolor caused growth inhibition, irrespective of P availability. These results suggest that in young poplars distinct species-specific ectomycorrhizal traits overshadowed potential growth benefits.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
刚刚
2秒前
一一应助MZ采纳,获得10
3秒前
陈圈圈发布了新的文献求助10
4秒前
4秒前
4秒前
5秒前
米奇妙妙吴完成签到 ,获得积分10
5秒前
赫连山菡发布了新的文献求助30
7秒前
奥巴马发布了新的文献求助10
7秒前
7秒前
7秒前
7秒前
Luke发布了新的文献求助10
8秒前
8秒前
9秒前
上官若男应助科研糊涂神采纳,获得10
9秒前
么么叽发布了新的文献求助10
9秒前
10秒前
10秒前
10秒前
一只柯羊完成签到 ,获得积分10
13秒前
tutu发布了新的文献求助10
14秒前
doku应助好心情采纳,获得100
15秒前
15秒前
zzq完成签到,获得积分20
15秒前
15秒前
Luke完成签到,获得积分10
16秒前
17秒前
17秒前
18秒前
18秒前
无花果应助科研通管家采纳,获得10
18秒前
科研通AI2S应助科研通管家采纳,获得10
18秒前
传奇3应助科研通管家采纳,获得10
19秒前
SYLH应助科研通管家采纳,获得10
19秒前
pluto应助科研通管家采纳,获得10
19秒前
SYLH应助科研通管家采纳,获得10
19秒前
19秒前
高分求助中
Continuum Thermodynamics and Material Modelling 3000
Production Logging: Theoretical and Interpretive Elements 2700
Mechanistic Modeling of Gas-Liquid Two-Phase Flow in Pipes 2500
Structural Load Modelling and Combination for Performance and Safety Evaluation 1000
Conference Record, IAS Annual Meeting 1977 720
電気学会論文誌D(産業応用部門誌), 141 巻, 11 号 510
Typology of Conditional Constructions 500
热门求助领域 (近24小时)
化学 材料科学 生物 医学 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 量子力学 光电子学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3565560
求助须知:如何正确求助?哪些是违规求助? 3138490
关于积分的说明 9427156
捐赠科研通 2839062
什么是DOI,文献DOI怎么找? 1560619
邀请新用户注册赠送积分活动 729739
科研通“疑难数据库(出版商)”最低求助积分说明 717606