热带作物学报2017，Vol.38Issue(7)：1198-1203,6.DOI:10.3969/j.issn.1000-2561.2017.07.004
供钼水平对4株柱花草根瘤菌生长的影响
Effects of Different Molybdenum Levels on the Growth of Four Rhizobial Strains Isolated from Stylosanthes
摘要
Abstract
The effects of different molybden um ( Mo) levels on the growth of four rhizobial strains isolated from Stylosanthes were investigated using the solid yeast mannitol agar (YMA) and liquid YMA medium. The growth of rhizobial strains was evaluated by qualitative and quantitative analysis under different Mo treatments. The results showed that no significant difference was observed among the four tested rhizobial strains without Mo addition. Rhizobial strains exhibited variations in Mo tolerance. The rhizobial strain PN13-3 showed higher Mo tolerance than the other three strains, as reflected by better growth performance under 3000 mg/L Mo treatment, whereas the growth of RJS9-2 was significantly inhibited by 1500 mg/L Mo treatment. Furthermore, PN13-3 and YM11-1 with Mo supply above 2000 mg/L, and LZ3-2 at a Mo concentration greater than 2500 mg/L exhibited increased the logarithmic growth phase and decreased the stationary phase, while 500 mg/L Mo treatment increased the lag phase and decreased the logarithmic growth phase of RJS9-2.关键词
根瘤菌/钼/生长曲线/柱花草Key words
Rhizobia/molybdenum/growth curve/Stylosanthes分类
农业科技引用本文复制引用
董荣书,张洁,陈志坚,白昌军,郇恒福,王文强,刘国道..供钼水平对4株柱花草根瘤菌生长的影响[J].热带作物学报,2017,38(7):1198-1203,6.基金项目
柱花草接种高效固氮根瘤菌在果园间作中应用的技术集成与示范(No. 0316006) （No. 0316006）
中央级公益性科研院所基本科研业务费专项资金资助项目(No. 0315029、 1630032016010). （No. 0315029、 1630032016010）
