Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Biotika: Jurnal Ilmiah Biologi Indonesian Journal of Biotechnology Caraka Tani: Journal of Sustainable Agriculture 3BIO: Journal of Biological Science, Technology and Management
RIZKITA RACHMI ESYANTI
Institut Teknologi Bandung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Immunology & microbiology Materials Science & Nanotechnology Neuroscience

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
PENGARUH KERAPATAN AGROBACTERIUM TERHADAP EFISIENSI TRANSFORMASI PADA PISANG CAVENDISH (Musa acuminata colla) Apriyani, Ria Khoirunnisa; Esyanti, Rizkita Rachmi; Dwivany, Fenny Martha
BIOTIKA Jurnal Ilmiah Biologi Vol 17, No 1 (2019): BIOTIKA JUNI 2019
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v17i1.21898

Abstract

Transformasi genetik melalui perantara Agrobacterium tumefaciens merupakan salah satu carauntuk meningkatkan kualitas buah Pisang Cavendish (Musa acuminata colla (AAA Group))yang memiliki susunan gen triploid. Efisiensi transformasi melalui A. tumefaciens terhadapembrio Pisang Cavendish dilakukan dengan mengoptimasi berbagai kerapatan optik kulturbakteri. A. tumefaciens, yaitu strain AGL1 dan GV3101 (yang masing-masing membawaplasmid ganda pBI121), mengandung gen gusA (pengode enzim β-Glucuronidase) digunakandalam proses transformasi ini. Perbedaan kerapatan optik (0,6; 0,8; 1,0) suspensi bakteri digunakan untuk proses transformasi. Persentase efisiensi transformasi dihitung berdasarkanjumlah embrio pisang yang positif pada uji GUS dibagi dengan jumlah total embrio pisang yangdiuji, dikali 100%. Efisiensi transformasi tertinggi diperoleh dari embrio pisang yangdiinokulasi oleh A.tumefaciens strain AGL1/pBI121 pada OD600nm = 1 (96%) dan efisiensitransformasi terendah diperoleh dari embrio pisang yang diinokulasi oleh A.tumefaciens strainGV3101/pBI121 pada OD600nm = 0.6 (40%).
A robust in planta Agrobacterium‐mediated transformation in red chili (Capsicum annuum L.) Hamdani, Anti Damayanti; Nugroho, Syarul; Esyanti, Rizkita Rachmi; Faizal, Ahmad; Suhandono, Sony
Indonesian Journal of Biotechnology Vol 29, No 4 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijbiotech.94653

Abstract

Plant improvement through in vitro culture and genetic engineering is a significant aspect of breeding programs aimed at producing disease‐resistant cultivars of disease‐prone red chili (Capsicum annuum L.). However, the Capsicum genus is recalcitrant to genetic transformation and in vitro regeneration. Moreover, developing a universal transformation protocol is difficult due to its highly genotype‐dependent nature. Therefore, this study aimed to develop an Agrobacterium‐mediated in planta transformation method applicable to various red chili cultivars. Two open‐pollinated varieties, Tanjung 2 and Ciko, were subjected to transformation. The young seedlings were immersed in transformation medium containing Agrobacterium tumefaciens strain GV3101 harboring the binary vector pCAMBIA1301, which carries the β‐glucuronidase (GUS) gene. GUS histochemical analysis revealed that all the primary transformants of Tanjung 2 and Ciko were identified as chimeric. The average staining in the body of the seedlings was 88.63 + 26.33% in Tanjung 2, and 90.65 + 16.77% in the Ciko variety. More than 50% of the seedlings continued to express GUS in their shoot areas 10 days after Agrobacterium infection, indicating the possibility of transgene inheritance in the following generation. The in planta transformation approach is notably genotype independent, making it a promising standard transformation protocol for different red chili varieties.
The Effect of Photoperiod on the Growth of Stevia rebaudiana in vitro Ramadhan, Muhammad Syah; Esyanti, Rizkita Rachmi; Iriawati, Iriawati; Rahmawati, Andira
3BIO: Journal of Biological Science, Technology and Management Vol. 6 No. 1 (2024)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2024.6.1.2

Abstract

Stevia rebaudiana, the source of non-caloric natural sweeteners in the form of steviol glycosides, is a plant with a poor germi- nation rate.Therefore, micropropagation is a potential alternative method to propagate the plants in a large number. Light is an important factor for photosynthesis, so changing the intensity, quality, and duration of lighting can affect plant growth. Photo- period, the duration of light within 24hour period, has been known to influence the growth of S. rebaudiana grown in ex vitro conditions. The purpose of this study is to investigate the effect of various photoperiod (8, 12, and 16 hours) on the growth of S. rebaudiana in vitro. The node segments from ex vitro grown S. rebaudiana plants were cultured on solid MS media supple- mented with 1.13mg/L BA and 0.35 mg/L IAA. The shoots were rooted on solid half-strength MS media containing 0.1 mg/L IAA. For acclimatization, therooted shoots were grown on a mixture of fertile soil, burnt rice husk, cocopeat, and manure. The photoperiod treatment was applied from the beginning to the end of the experiment. Our results showed that the highest shoot length was found under 16 hour photoperiod. On the otherhand, root number and root length were not affected by photoperiod. Additionally, a 16 hour photoperiod increased shoot length (5.9 cm) compared to a 12-hour (3.48 cm) and 8-hour photoperiod (3.08 cm) after 5 weeks of acclimatization. A 16 hour photoperiod also producedhighest total leaf fresh weight (0.2 g). Howev- er, different photoperiods did not significantly affect leaf number and leaf area. In conclusion, 16 hour photoperiod is the best condition for S. rebaudiana micropropagation.
Carbonaceous Particles from Candle Soot Enhance Water Absorption and Modulate Starch-Sugar Metabolism in Solanaceae Seed Germination Sembada, Anca Awal; Faizal, Ahmad; Esyanti, Rizkita Rachmi; Indartono, Yuli Setyo; Lenggoro, I. Wuled
Caraka Tani: Journal of Sustainable Agriculture Vol 40, No 4 (2025): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v40i4.95758

Abstract

Candle soot is a source of carbonaceous compounds that has been viewed as unwanted air pollution. Few have attempted to apply candle soot in agriculture, specifically for seed germination. This study was conducted to determine the effect of using candle soot on the germination of seeds from the Solanaceae family (Capsicum annuum, Solanum lycopersicum, and Solanum melongena). Three concentrations (10-2, 10-3, and 10-4 wt%) of candle soot were used. The results showed an improvement in measurable germination parameters and seedling quality parameters. The 10-3 wt% concentration was able to reduce the time needed for germination compared to the control by 11% in C. annuum, 12% in S. lycopersicum, and 10% in S. melongena. Further evaluation was conducted by analyzing the elements present in the seedlings. The results showed that the elemental information of seedlings treated with candle soot did not differ significantly from the control. This indicates that candle soot is biocompatible for agricultural applications. Further evaluation was also carried out to analyze biochemical components such as starch and soluble sugar, which play a crucial role in the seed germination process. The results showed a significant (p < 0.05) decrease in starch content compared to the control, while the soluble sugar content increased during treatment with candle soot. These carbonaceous particles could be a potential approach to enhancing germination and promoting sustainable agricultural practices, as revealed by this investigation.
Co-Authors Ahmad Faizal Apriyani, Ria Khoirunnisa FENNY MARTHA DWIVANY Hamdani, Anti Damayanti I. Wuled Lenggoro Indartono, Yuli Setyo Iriawati Iriawati Nugroho, Syarul Rahmawati, Andira Ramadhan, Muhammad Syah Sembada, Anca Awal SONY SUHANDONO