本文選題：松嫩鹽堿草地　切入點(diǎn)：AM真菌　出處：《草業(yè)科學(xué)》2017年02期

【摘要】：為考察松嫩鹽堿草地旋覆花(Inula japonica)根圍AM真菌侵染特性及其多樣性,本研究對(duì)黑龍江省肇東市西南部松嫩鹽堿草地旋覆花根系和根際土壤進(jìn)行分析。結(jié)果表明,在不同pH的土壤生境下,旋覆花根系均被AM真菌侵染,在土壤pH為8.76時(shí),侵染率達(dá)到100%,泡囊豐度與叢枝豐度達(dá)到最大值,分別為75.67%和74.32%;在土壤pH為8.71時(shí),侵染率為85%,泡囊豐度與叢枝豐度最低。通過形態(tài)學(xué)鑒定共分離出AM真菌8屬37種,其中球囊霉屬(Glomus)21種,占總種數(shù)的56.7%,為優(yōu)勢(shì)屬,根內(nèi)球囊霉(G.intraradices)和幼套球囊霉(G.etunicatum)是優(yōu)勢(shì)種;無梗囊霉屬(Acaulospora)6種,占總種數(shù)的16.2%;盾巨孢囊霉屬(Scutellospora)3種,占總種數(shù)的8.1%;和平囊霉屬(Pacispora)、內(nèi)養(yǎng)囊霉屬(Entrophospora)各兩種,各占總數(shù)的5.4%,巨孢囊霉屬(Gigaspora)、多孢囊霉屬(Diversispora)、原囊霉屬(Archaeospora)各1種,各占總數(shù)的2.7%。
[Abstract]:In order to investigate the infection characteristics and diversity of AM fungi in root circumference of Inula japonica, the root system and rhizosphere soil of Songnen saline-alkali grassland in the southwest of Zhaodong City, Heilongjiang Province, were studied. In different pH soil habitats, the root system of capped flowers was infected by AM fungi. When the pH value was 8.76, the infection rate was 100, the highest values of vesicle abundance and arbuscular abundance were 75.67% and 74.32%, respectively, and the soil pH was 8.71, respectively. The infection rate was 85m, the abundance of vesicle and arbuscular branch was the lowest. Eight genera and 37 species of AM fungi were identified by morphological identification, of which 21 species were Glomusus, accounting for 56.7% of the total species. The dominant species were G. intraradicesand G. etunicatum. There are 6 species of the genus Acaulospora, accounting for 16.2% of the total species; 3 species of Scutellospora, accounting for 8.1% of the total number; two species of Pacispora, two species of Entrophospora, two species of each, each accounting for 5.4% of the total, one species each of the genus Gigaspora, one species of Diversispora, one species of the genus Archaeospora. Each accounting for 2.7% of the total.
【作者單位】： 東北林業(yè)大學(xué)園林學(xué)院;
【基金】：國家自然科學(xué)基金“星星草-叢枝菌根共生體應(yīng)答鹽堿逆境的生理機(jī)制解析(31601986)” 中央高�；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金“松嫩鹽堿草地星星草根圍AM真菌多樣性與功能研究(2572015CA22)” 東北油田鹽堿植被恢復(fù)與重建教育部重點(diǎn)實(shí)驗(yàn)室開放基金“松嫩鹽堿草地馬藺根圍AM真菌多樣性研究(SAVER1608)”
【分類號(hào)】：S154.3;S682.19
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本文編號(hào)：1686997