Mobilization of Inorganic Phosphorus from Soils by Ectomycorrhizal Fungi

土壤水分 草酸盐 化学 土壤pH值 钙质的 环境化学 豆马勃属 植物 生物 菌根 生态学 共生 无机化学 细菌 有机化学 遗传学
作者
Liang Zhang,Mingxia Wang,Hua Li,Ling Yuan,Jianguo Huang,Chris Penfold
出处
期刊:Pedosphere [Elsevier BV]
卷期号:24 (5): 683-689 被引量:22
标识
DOI:10.1016/s1002-0160(14)60054-0
摘要

Ectomycorrhizal (EM) fungi could form symbiosis with plant roots and participate in nutrient absorption; however, many EM species commonly found in forest soils, where phosphorus (P) concentration and availability are usually very low, particularly in tropical and subtropical areas, have not yet been investigated for their efficiencies to mobilize soil P. In this study, fungal growth, P absorption, efflux of protons and organic acids, and soil P depletion by four isolates of EM fungi isolated either from acidic or calcareous soils were compared in pure liquid culture using soil as a sole P source. Boletus sp. 7 (Bo 7), Lactarius deliciosus 3 (Ld 3), and Pisolithus tinctorius 715 (Pt 715) from acidic and P-deficient soils of southwestern China showed higher biomass and P concentration and accumulation than Cenococcum geophilum 4 (Cg 4) from a calcareous soil of Inner Mongolia, northern China, after 4 weeks of liquid culture. Oxalate, malate, succinate, acetate, and citrate concentrations in the culture solutions varied significantly with fungal species, and oxalate accounted for 51.5%–91.4% of the total organic acids. Organic acids, particularly oxalate, in the culture solutions may lead to the solubilization of iron-bound P (Fe-P), aluminum-bound P (Al-P), and occluded P (O-P) from soil phosphates. Fungal species also varied greatly in proton efflux, which decreased the culture solution pH and may dissolve calcium-bound P (Ca-P) in soil. This could be the reason for the increment of both inorganic P in the culture solutions and Olsen P in the soil when EM fungi were present. Total inorganic P, the sum of Al-P, Fe-P, O-P, and Ca-P, in the culture solutions was positively correlated with the total concentration of organic acids in the culture solutions (r = 0.918*, n = 5), but negatively with both the total inorganic P in soil (r = −0.970**, n = 5) and the culture solution pH (r = −0.830*, n = 5). These suggested variable efficiencies of EM fungal species to mobilize inorganic P fractions from soil, which could make EM trees to utilize inorganic P in the same way like EM fungi and adapt to the soils with various P concentrations and availabilities.
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
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

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
zqingqing完成签到,获得积分10
刚刚
yize完成签到,获得积分10
1秒前
2秒前
2秒前
崔悦欣发布了新的文献求助10
2秒前
谨慎的擎宇完成签到,获得积分10
3秒前
Thomas完成签到,获得积分10
4秒前
小白鞋完成签到 ,获得积分10
4秒前
maying0318发布了新的文献求助10
6秒前
宣以晴完成签到,获得积分10
6秒前
Nnn完成签到,获得积分10
7秒前
baby完成签到,获得积分10
10秒前
123完成签到,获得积分10
10秒前
11秒前
学术牛马完成签到,获得积分10
11秒前
sl发布了新的文献求助10
13秒前
完美的鹤完成签到,获得积分10
14秒前
hky完成签到,获得积分10
15秒前
TTTHANKS完成签到 ,获得积分10
16秒前
WW完成签到,获得积分10
16秒前
LL完成签到,获得积分10
17秒前
量子星尘发布了新的文献求助10
17秒前
小马的可爱老婆2完成签到,获得积分10
17秒前
缥缈纲完成签到,获得积分10
18秒前
TY完成签到 ,获得积分10
18秒前
迷路的小蚂蚁完成签到,获得积分10
19秒前
哈儿的跟班完成签到,获得积分10
19秒前
醉熏的鑫完成签到,获得积分20
20秒前
远_09完成签到 ,获得积分10
21秒前
网站技术人员完成签到,获得积分10
22秒前
eazin完成签到 ,获得积分10
23秒前
山野桃饼完成签到,获得积分10
23秒前
无私代芹完成签到,获得积分10
24秒前
画风湖湘卷完成签到,获得积分10
24秒前
段一帆完成签到,获得积分10
25秒前
结实的老虎完成签到,获得积分10
25秒前
25秒前
邓希静完成签到,获得积分10
26秒前
29秒前
30秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
Research on Disturbance Rejection Control Algorithm for Aerial Operation Robots 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038426
求助须知:如何正确求助?哪些是违规求助? 3576119
关于积分的说明 11374556
捐赠科研通 3305834
什么是DOI,文献DOI怎么找? 1819339
邀请新用户注册赠送积分活动 892678
科研通“疑难数据库(出版商)”最低求助积分说明 815029