犹他州受干扰地区杂草和先锋植物物种的泡囊丛枝菌根

Vesicular-arbuscular mycorrhizae of weedy and colonizer plant species at disturbed sites in Utah.

作者信息

Pendleton R L, Smith B N

机构信息

Department of Botany and Range Science, Brigham Young University, 84602, Provo, UT, USA.

出版信息

Oecologia. 1983 Sep;59(2-3):296-301. doi: 10.1007/BF00378852.

DOI:10.1007/BF00378852

PMID:28310248

Abstract

A survey was made of weedy plant species found on distubed sites in Utah. Of the 74 species sampled, 57% were found to contain VA mycorrhizae. Mycorrhizal and nonmycorrhizal species strictly followed taxonomic divisions, regardless of growth habit. Nonmycorrhizal species were members of the Amaranthaceae, Brassicaceae, Capparidaceae, Caryophyllaceae, Chenopodiaceae, Papaveraceae, Polygonaceae, Portulacaceae, Rubiaceae, and Zygophyllaceae.Cover data were obtained for all plant species, including nonweedy species, colonizing seven of the disturbed sites. Flat semiarid sites were dominated by nonmycorrhizal species. The proportion of mycorrhizal plant cover may be related to water availability. Rocky, sloping sites were dominated by mycorrhizal species. Disturbance by fire did not cause a significant change in the mycorrhizal component of the community.

摘要

对在犹他州受干扰地点发现的杂草植物物种进行了一项调查。在抽样的74个物种中，发现57%含有VA菌根。菌根物种和非菌根物种严格遵循分类划分，与生长习性无关。非菌根物种属于苋科、十字花科、白花菜科、石竹科、藜科、罂粟科、蓼科、马齿苋科、茜草科和蒺藜科。获取了所有植物物种（包括非杂草物种）在七个受干扰地点的覆盖数据。平坦的半干旱地点以非菌根物种为主。菌根植物覆盖比例可能与水分供应有关。多岩石的斜坡地点以菌根物种为主。火灾干扰并未导致群落菌根成分发生显著变化。