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Root-associated bacteria containing 1-aminocyclopropane-1-carboxylate deaminase improve growth and nutrient uptake by pea genotypes cultivated in cadmium supplemented soil

被引：147
作者：
Safronova, VI
Stepanok, VV
Engqvist, GL
Alekseyev, YV
Belimov, AA
机构：
[1] All Russia Res Inst Agr Microbiol, St Petersburg 196608, Russia
[2] Res Inst Agr Use Ameliorated Lands, Tver 171330, Russia
[3] Svalof Weibull AB, S-26881 Svalov, Sweden
[4] Agrophys Res Inst, St Petersburg 196608, Russia
来源：
BIOLOGY AND FERTILITY OF SOILS | 2006年 / 42卷 / 03期
关键词：
ACC deaminase; cadmium; pea; plant-microbe interaction; rhizosphere;
D O I：
10.1007/s00374-005-0024-y
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
The effect of inoculation with Pseudomonas brassicacearum Am3, Pseudomonas marginalis Dp1 and Rhodococcus sp. Fp2 containing 1-aminocyclopropane-1-carboxylate deaminase (ACCD) on growth and uptake of N, P, K, Ca, S, Fe and Cd in shoots of pea ( Pisum sativum) genotypes VIR188, VIR1658, VIR3429 and VIR4488 was studied in pot experiment with non-polluted and Cd-supplemented (10 mg Cd kg(-1)) sod-podzolic soil. The growth-promoting effect of bacteria depended on plant genotype and bacterial strain. Only Rhodococcus sp. Fp2 had no ACCD activity in vitro in the presence of Cd and did not stimulate pea growth in Cd-supplemented soil. Inoculation with bacteria counteracted the Cd-induced inhibition of nutrient uptake by plants probably through stimulation of root growth and enhancement of nutrient uptake processes. Nutritional effects of the bacteria were specific with respect to the nutrient.
引用
收藏
页码：267 / 272
页数：6
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