Ploughing up the wood-wide web?

被引：741

作者：

Helgason, T ^{[1
]}

Daniell, TJ ^{[1
]}

Husband, R ^{[1
]}

Fitter, AH ^{[1
]}

Young, JPW ^{[1
]}

机构：

[1] Univ York, Dept Biol, York YO10 5YW, N Yorkshire, England

来源：

NATURE | 1998年 / 394卷 / 6692期

关键词：

D O I：

10.1038/28764

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Key species groups that affect major ecological processes are vital components of community diversity. Many such key groups are found in the soil, including the mycorrhizal fungi that may connect plants into a functional “wood-wide web”1. Arbuscular mycorrhizal associations are formed by fungi of the order Glomales with 90% of land plant families, and many arbuscular mycorrhizal fungi are thought to have a broad host range2. Here we show that, despite this broad host range, the diversity of arbuscular mycorrhizal fungi is strikingly low in arable sites compared with a woodland.

引用

页码：431 / 431

页数：1

共 10 条

[1] Biotic control over the functioning of ecosystems [J].

Chapin, FS ;

Walker, BH ;

Hobbs, RJ ;

Hooper, DU ;

Lawton, JH ;

Sala, OE ;

Tilman, D .

SCIENCE, 1997, 277 (5325) :500-504

[2] DIVERSITY OF FUNGAL SYMBIONTS IN ARBUSCULAR MYCORRHIZAS FROM A NATURAL COMMUNITY [J].

CLAPP, JP ;

YOUNG, JPW ;

MERRYWEATHER, JW ;

FITTER, AH .

NEW PHYTOLOGIST, 1995, 130 (02) :259-265

[3] Biodiversity regulates ecosystem predictability [J].

McGradySteed, J ;

Harris, PM ;

Morin, PJ .

NATURE, 1997, 390 (6656) :162-165

[4] The arbuscular mycorrhizal fungi of Hyacinthoides non-scripta - I. Diversity of fungal taxa [J].

Merryweather, J ;

Fitter, A .

NEW PHYTOLOGIST, 1998, 138 (01) :117-129

[5] Biodiversity enhances ecosystem reliability [J].

Naeem, S ;

Li, SB .

NATURE, 1997, 390 (6659) :507-509

[6] Arbuscular mycorrhiza protect an annual grass from root pathogenic fungi in the field [J].

Newsham, KK ;

Fitter, AH ;

Watkinson, AR .

JOURNAL OF ECOLOGY, 1995, 83 (06) :991-1000

[7] Net transfer of carbon between ectomycorrhizal tree species in the field [J].

Simard, SW ;

Perry, DA ;

Jones, MD ;

Myrold, DD ;

Durall, DM ;

Molina, R .

NATURE, 1997, 388 (6642) :579-582

[8] SPECIFIC AMPLIFICATION OF 18S FUNGAL RIBOSOMAL GENES FROM VESICULAR-ARBUSCULAR ENDOMYCORRHIZAL FUNGI COLONIZING ROOTS [J].

SIMON, L ;

LALONDE, M ;

BRUNS, TD .

APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1992, 58 (01) :291-295

[9]

Smith SE., 1996, MYCORRHIZAL SYMBIOSI

[10] The influence of functional diversity and composition on ecosystem processes [J].

Tilman, D ;

Knops, J ;

Wedin, D ;

Reich, P ;

Ritchie, M ;

Siemann, E .

SCIENCE, 1997, 277 (5330) :1300-1302

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