Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.17957/IJAB/15.0387 |
Scrutinizing of Rhizobacterial Isolates for Improving Drought Resilience in Maize (Zea mays) | |
Ali, Liaqat1; Khalid, Muhammad1; Asghar, Hafiz Naeem1; Asgher, Muhammad2 | |
通讯作者 | Ali, Liaqat |
来源期刊 | INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY
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ISSN | 1560-8530 |
EISSN | 1814-9596 |
出版年 | 2017 |
卷号 | 19期号:5页码:1054-1064 |
英文摘要 | Food security due to scarcity of water to field crops is major concern now a days due to stress environments. A growth room trial was performed to screen potential bacterial inoculants for improving growth and physiology of maize (Zea mays L.) under water scarcity. Thirty fast growing rhizobacteria were isolated from rhizosphere of maize, cultivated in arid and semiarid areas of the province (Punjab). Isolates were evaluated for their plant growth promoting characters and drought tolerance, at various moisture levels developed in-vitro by using 0, 5, 10, 15, 20 and 25% polyethylene glycol (PEG-6000). Nine most efficient isolates (LK-2, LK-7, LK-9, LK-13, LK-16, LK-18, LK-21, LK-24, LK-29) were selected, having potential ability to survive in water stressed condition and were tested further in a jar experiment for their role in morphophysiological improvements in maize seedlings, grown at different drought levels (100, 70 and 40% field capacity (FC). Results depicted that inoculation significantly (P <= 0.05) enhanced root/shoot biomass & root/ shoot ratio, chlorophyll a and b, starch content, soluble sugars, relative water content, photosynthetic rate, water use efficiency and stomatal conductance. Overall, isolate LK-13 and LK-16 were found more prominent in inducing drought tolerance in seedlings as compared to other isolates and uninoculated control. Identification of isolates through 16sRNA sequencing confirmed the both strains (LK-13 and LK-16) belong to Bacillus spp. Inoculation of maize seeds with rhizobacteria as plant growth promoting rhizobacteria enhanced growth and physiology of maize. So, inoculation of PGPR could be a potential approach for enhancing drought resilience in maize (Zea mays L.). (C) 2017 Friends Science Publishers |
英文关键词 | Rhizobacteria Physiology Proline Soluble sugars Water use efficiency |
类型 | Article |
语种 | 英语 |
国家 | Pakistan |
收录类别 | SCI-E |
WOS记录号 | WOS:000412172700015 |
WOS关键词 | GROWTH-PROMOTING RHIZOBACTERIA ; ARBUSCULAR MYCORRHIZAL FUNGI ; TRITICUM-AESTIVUM L. ; ORYZA-SATIVA L. ; WATER-STRESS ; DESICCATION TOLERANCE ; RHIZOBIUM-MELILOTI ; PLANT PRODUCTIVITY ; ACC-DEAMINASE ; BACTERIA |
WOS类目 | Agriculture, Multidisciplinary ; Biology |
WOS研究方向 | Agriculture ; Life Sciences & Biomedicine - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/199687 |
作者单位 | 1.Univ Agr Faisalabad, Fac Agr, Inst Soil & Environm Sci, Faisalabad 38040, Pakistan; 2.Univ Agr Faisalabad, Fac Sci, Dept Biochem, Faisalabad 38040, Pakistan |
推荐引用方式 GB/T 7714 | Ali, Liaqat,Khalid, Muhammad,Asghar, Hafiz Naeem,et al. Scrutinizing of Rhizobacterial Isolates for Improving Drought Resilience in Maize (Zea mays)[J],2017,19(5):1054-1064. |
APA | Ali, Liaqat,Khalid, Muhammad,Asghar, Hafiz Naeem,&Asgher, Muhammad.(2017).Scrutinizing of Rhizobacterial Isolates for Improving Drought Resilience in Maize (Zea mays).INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY,19(5),1054-1064. |
MLA | Ali, Liaqat,et al."Scrutinizing of Rhizobacterial Isolates for Improving Drought Resilience in Maize (Zea mays)".INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY 19.5(2017):1054-1064. |
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