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All Journal BERITA BIOLOGI ANNALES BOGORIENSES
Anky Zannati
Pusat Penelitian Bioteknologi LIPI Jl. Raya Bogor Km 46 Cibinong, Bogor 16
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Immunology & microbiology Medicine & Pharmacology

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IDENTIFIKASI GALUR-GALUR PADI MUTANINSERSI TOLERAN DAN RENTAN CEKAMAN SALINITAS BERDASARKAN KARAKTER MULTIVARIAT PERTUMBUHAN DAN BIOKIMIA PADA FASE VEGETATIF Situmorang, Apriadi; Zannati, Anky; Widyajayantie, Dwi; Nugroho, Satya
BERITA BIOLOGI Vol 10, No 4 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (538.654 KB) | DOI: 10.14203/beritabiologi.v10i4.765

Abstract

Growth and biochemical characters of thirty-three Nipponbare-based rice mutant lines independently harboring activation-tag in salt stress condition were investigated. Rice cv Nipponbare wild type, IR29 and Pokkali were used as isogenic, susceptible, and tolerant cultivars, respectively. Plants were grown in Yoshida nutrient solution containing NaCI (6 g/1) as the stress treatment and in Yoshida nutrient solution without NaCI as the control. Evaluation of salt tolerance was conducted at 21 days after salinization.The results showed that there was a significant difference in growth characters among genotypes in reduction of the plant height,root length, shoot fresh weight, root fresh weight, shoot dry weight, as well as in the root dry weight. Biochemical characters of the genotypes also showed significant difference in their reduction of chlorophyll-a and chlorophyll-b concentrations,total carotenoids and proline accumulation. Based on multivariate growth and biochemical characters,T3.PMO.VI.63.5a.30.9,T3.PMO.VI.30.1a.21.1, T3.PMO.V1.63.5a.33.7F3.PUR.IX.49.1d.l.6.5,T3.PMO.VI.81.3a.4.4, F3.PUR.IX.49.1d.l.6.5,and F3.PUR.VIII.5.1f.l.4.8 were assumed as potential salt-tolerant lines, respectively, while mutant lines T3.PMO.VI.30.1a.l07.7,T3.PMO.VI.63.5a.20.6,T3.PMO.III.4.4c.7.2,andT3.PMO.VI.30.1a.51.1 were assumed as salt-susceptible lines respectively.
Phenotypic Screening of Ds transposon and Activation-tag Insertional Mutant Rice Population for Drought and Salinity Tolerant Related Traits Nugroho, Satya; Zannati, Anky; Situmorang, Apriadi; Windiastri, Vincentia Esti; Widyajayantie, Dwi; Pantouw, Carla F.; Astuti, Dwi; Indrayani, Sri; Rahmawati, Syamsidah; Mulyaningsih, Enung Sri; Santoso, Tri Joko; Trijatmiko, Kurniawan Rudi
ANNALES BOGORIENSES Vol 15, No 1 (2011): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1234/56

Abstract

The studies of rice genes through functional genomics are greatly facilitated by the availability of the complete genome sequences, including the complete physical map of the japonica rice cv. nipponbare. Using the Ac and Ds transposon, that are capable of transposition in various heterologous plants including the monocotyledon rice,  combined with the enhancer element for generating activation taged lines, it is possible to discover and isolate functional genes involved in various important agronomical traits; such as those involved in abiotic stress tolerance (drought, high salt) and biotic stresses diseases and pests. We have developed 1,785 first (T0) generation of mutant nipponbare rice by transposons Ac/Ds insertions containing activation-tag, generated by transformation using Agrobacterium-mediated method. Currently, we have generated approximately 1,000 stable lines with transposon Ds and activation-tag insertion ready for screening. Efficient screening methods for mutant Nipponbare rice lines have been established for agronomically important mutant traits. Among the new phenotypes related to important agronomical traits observed were drought and salt tolerant or sensitive, stunted and robust growth, variable root penetration and other interesting traits such as reduced tillering, rolled leaf and thin tiller.   Keywords: rice, insertion mutant, gene discovery, drought, salinity
Co-Authors Apriadi Situmorang Dwi Astuti Dwi Widyajayantie Enung Sri Mulyaningsih Kurniawan Rudi Trijatmiko, Kurniawan Rudi Pantouw, Carla F. Satya Nugroho Sri Indrayani, Sri Syamsidah Rahmawati, Syamsidah TRI JOKO SANTOSO Vincentia Esti Windiastri, Vincentia Esti