Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/17429145.2016.1274060 |
Bacterial endophytes from arid land plants regulate endogenous hormone content and promote growth in crop plants: an example of Sphingomonas sp and Serratia marcescens | |
Asaf, Sajjad1; Khan, Muhammad Aaqil1; Khan, Abdul Latif2; Waqas, Muhammad1,3; Shahzad, Raheem1; Kim, Ah-Yeong1; Kang, Sang-Mo1; Lee, In-Jung1 | |
通讯作者 | Lee, In-Jung |
来源期刊 | JOURNAL OF PLANT INTERACTIONS
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ISSN | 1742-9145 |
EISSN | 1742-9153 |
出版年 | 2017 |
卷号 | 12期号:1页码:31-38 |
英文摘要 | The objective of the present study was to determine the potential plant growth-promoting action of bacterial endophytes isolated from arid land-dwelling plants under normal conditions. Overall, five bacterial endophytes LK11 (Sphingomonas sp. LK11), TP5 (Bacillus subtilis), MPB5.3 (B. subtilis subsp. Subtilis), S9 (B. subtilis subsp. Subtilis), and TP1 (Serratia marcescens) were evaluated based on morphological characteristics after isolation and purification. Phytohormonal analysis of these endophytes predicted indole acetic acid (IAA) production 12.31 +/- 0.45, 6.8 +/- 0.59, and 10.5 +/- 1.02 mu M/mL in the culture broths of LK11, MPB5.3, and TP1, respectively. Under controlled greenhouse conditions, these endophytes were inoculated into soybean, and their growth-promoting characteristics were compared with those of non-phytohormone-producing endophytes. In terms of plant growth promotion, among IAA-producing endophytes, LK11 and TP1 greatly improved physiological characteristics such as shoot/root length, fresh/dry weight, and chlorophyll contents. However, the non-phytohormone-producing endophytes TP5 and S9 did not show a growth-promoting effect. Based on these results, plants inoculated with LK11 and TP1 along with a control were subjected to endogenous hormonal analysis and showed a significant increase in abscisic acid (457.30-398.55 vs. 205.93 ng/g D.W.) and a decrease in jasmonic acid content (50.07-85.07 vs. 93.90 ng/g D.W.), respectively. Total gibberellin content was found to significantly increase in endophyte-inoculated plants (155.43-146.94 ng/g D.W.) as compared to that in controls (113.76 ng/g D.W.). In summary, bacterial endophytes might be used to enhance crop plant physiological characteristics isolated from arid land-inhabiting plants under normal conditions. |
英文关键词 | Endophytes soybean phytohormones agronomic crops hormonal regulation plant growth characteristics environmentally friendly agriculture |
类型 | Article |
语种 | 英语 |
国家 | South Korea ; Oman ; Pakistan |
收录类别 | SCI-E |
WOS记录号 | WOS:000395511200005 |
WOS关键词 | PIRIFORMOSPORA-INDICA ; DROUGHT STRESS ; SP LK11 ; GIBBERELLIN ; ROOT ; ACID ; L. ; PHYTOHORMONES ; ARABIDOPSIS ; EXPRESSION |
WOS类目 | Plant Sciences ; Ecology |
WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/200740 |
作者单位 | 1.Kyungpook Natl Univ, Sch Appl Biosci, Daegu, South Korea; 2.Univ Nizwa, UoN Chair Omans Med Plants & Marine Nat Prod, Nizwa, Oman; 3.Abdul Wali Khan Univ Mardan, Dept Agr, Khyber Pakhtunkhwa, Pakistan |
推荐引用方式 GB/T 7714 | Asaf, Sajjad,Khan, Muhammad Aaqil,Khan, Abdul Latif,et al. Bacterial endophytes from arid land plants regulate endogenous hormone content and promote growth in crop plants: an example of Sphingomonas sp and Serratia marcescens[J],2017,12(1):31-38. |
APA | Asaf, Sajjad.,Khan, Muhammad Aaqil.,Khan, Abdul Latif.,Waqas, Muhammad.,Shahzad, Raheem.,...&Lee, In-Jung.(2017).Bacterial endophytes from arid land plants regulate endogenous hormone content and promote growth in crop plants: an example of Sphingomonas sp and Serratia marcescens.JOURNAL OF PLANT INTERACTIONS,12(1),31-38. |
MLA | Asaf, Sajjad,et al."Bacterial endophytes from arid land plants regulate endogenous hormone content and promote growth in crop plants: an example of Sphingomonas sp and Serratia marcescens".JOURNAL OF PLANT INTERACTIONS 12.1(2017):31-38. |
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