مورد إلكتروني
Plasmid-associated genes in the model micro-symbiont Sinorhizobium meliloti 1021 affect the growth and development of young rice seedlings
| العنوان: | Plasmid-associated genes in the model micro-symbiont Sinorhizobium meliloti 1021 affect the growth and development of young rice seedlings |
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| المصدر: | Environmental Microbiology |
| بيانات النشر: | Blackwell Publishing Ltd 2005 |
| تفاصيل مُضافة: | Perrine, Francine Hocart, Charles Hynes, Michael F Rolfe, Barry |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Sinorhizobium meliloti strain 1021 and its closely related strain Rm2011 inhibit rice seedling (Oryza sativa L. cv. Pelde) growth and development under certain rice-growing conditions. Experiments showed that inoculation of seedlings with approximately less than 10 cells of 1021 was sufficient to cause this inhibition. By using a series of plasmid-cured and plasmid-deleted derivatives of Rm2011, it was found that interactions between genes encoded on pSymA, and possibly pSymB, of Rm2011, affected rice growth and development by affecting both/either the plant and/or the bacteria. Further studies found that genes potentially related to indole-3-acetic acid (IAA) synthesis and nitrate metabolism, encoded on pSymA, were involved in rice growth inhibition in Sm1021- and Sm2011-treated rice seedlings. We conclude that the rice growth inhibition by S. meliloti Sm1021 is pSymA-associated and is induced by environmental nitrate. |
| مصطلحات الفهرس: | Keywords: nitrate; article; bacterial count; bacterium conjugation; comparative study; fluorescence microscopy; gene order; genetics; growth, development and aging; metabolism; microbiology; plant root; plasmid; rice; seedling; Sinorhizobium meliloti; symbiosis; Co, Journal article |
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| الإتاحة: | Open access content. Open access content |
| أرقام أخرى: | AUANP oai:openresearch-repository.anu.edu.au:1885/80261 1462-2912 1291808466 |
| المصدر المساهم: | AUSTRALIAN NAT UNIV - PRINT REPOSITORY From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1291808466 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |