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Overexpression of OsHox-6 Gene Enhanced Tiller Number in Rice But Induced Yield Penalty Rahmawati, Syamsidah; Chairunnisa, Chairunnisa; Erdayani, Eva; Nugroho, Satya; Estiati, Amy
ANNALES BOGORIENSES Vol 23, No 1 (2019): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (712.857 KB) | DOI: 10.14203/ann.bogor.2019.v23.n1.30-40

Abstract

OsHox-6, belongs to the transcription factor homeodomain leucine zipper (HD-Zip) protein sub-family I, has unknown function. This study was aimed to characterize the phenotypes of two homozygous transgenic rice lines (S29-62-2 and S.40.4-158-1) containing an extra copy of OsHox-6 gene under the control of a rice constitutive promoter, OsLEA3, and to evaluate their tolerance to water stress. A real-time quantitative PCR (qRT-PCR) showed that the transcript expression of OsHox-6 gene in the transgenic lines increased 5-10 folds under a normal irrigation and 10-20 folds after exposure to water stress conditions as compared to its wild type control. Transgenic plants overexpressing OsHox-6 exhibited phenotypic alteration at the normal irrigation by inducing tiller formation, suggesting a decrease in the apical dominance. Transgenic plants also showed significant enhancement in the total grain number, however, the number of empty grains  also increased significantly (~16-22%).  After imposed to the water stress, the number of empty grains in the transgenic lines was even higher (up to 83% in average). Furthermore, observations on the water loss rates, relative water contents and drought resistance indices (DRI) suggested that the overexpression of OsHox-6 did not significantly increase tolerance to water stress.  Further research is required to reveal the detailed mechanisms of OsHox-6 in response to water and other abiotic stresses.
Diagnostic Value of Saliva RT-PCR Test within Suspected SARS-CoV-2 Cases in Indonesia Putra, Andika Chandra; Zaini, Jamal; Ridwanuloh, Asep Muhammad; Nugroho, Herjuno Ari; Setyawan, Ryan Haryo; Idris, Idris; Setiawan, Ruby; Sushadi, Pangda Sopha; Wulandari, Ari Sulistyo; Zannati, Anky; Indriawati, Indriawati; Erdayani, Eva; Wahyuni, Wahyuni; Agustiyanti, Dian Fitria; Wisnuwardhani, Popi Hadi; Saniyyah, Zahrah; Azika, Wira Norman; Haryanto, Budi; Utomo, Ahmad Rusdan Handoyo; Ningrum, Ratih Asmana
Health and Medical Journal Vol 6, No 2 (2024): HEME May 2024
Publisher : Universitas Baiturrahmah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33854/heme.v6i2.1494

Abstract

Introduction: The ongoing SARS-CoV-2 pandemic has profoundly emphasized the pressing need for accurate and reliable diagnostic procedures. Given the potential health risks associated with nasopharyngeal swabs, there has been growing interest in seeking alternative diagnostic mediums. In this context, our study delved into evaluating saliva as a potential diagnostic tool, simultaneously assessing its efficiency in relation to patient demographics and their exhibited clinical symptoms. Methods: Spanning from May to December 2020, we conducted a comprehensive cross-sectional analysis. We meticulously examined medical records to gather insights on patient characteristics, existing health conditions, onset of symptoms, clinical manifestations, and compared the results obtained from both salivary and nasopharyngeal RT-PCR tests for SARS-CoV-2. Results: Among the individuals suspected of SARS-CoV-2 infection, the mean age stood at 52.4 years, with males representing 60.3% of this group. Interestingly, a significant 76.9% reported underlying health conditions, predominantly hypertension and diabetes. The most commonly reported symptoms encompassed respiratory challenges, notably coughing and shortness of breath, succeeded by symptoms like nausea, fever, and a general sense of fatigue. The performance of saliva tests, in terms of accuracy, appeared to be significantly influenced by the timing of symptom emergence. Conclusion: The RT-PCR tests utilizing saliva samples demonstrated considerable promise, especially during the early stages of symptom manifestation, providing a reliable alternative to traditional nasopharyngeal swabs. The findings suggest a superior diagnostic sensitivity when utilizing saliva during the initial phases of a SARS-CoV-2 infection.
Overexpression of OsHox-6 Gene Enhanced Tiller Number in Rice But Induced Yield Penalty Rahmawati, Syamsidah; Chairunnisa, Chairunnisa; Erdayani, Eva; Nugroho, Satya; Estiati, Amy
Annales Bogorienses Vol. 23 No. 1 (2019): Annales Bogorienses
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

OsHox-6, belongs to the transcription factor homeodomain leucine zipper (HD-Zip) protein sub-family I, has unknown function. This study was aimed to characterize the phenotypes of two homozygous transgenic rice lines (S29-62-2 and S.40.4-158-1) containing an extra copy of OsHox-6 gene under the control of a rice constitutive promoter, OsLEA3, and to evaluate their tolerance to water stress. A real-time quantitative PCR (qRT-PCR) showed that the transcript expression of OsHox-6 gene in the transgenic lines increased 5-10 folds under a normal irrigation and 10-20 folds after exposure to water stress conditions as compared to its wild type control. Transgenic plants overexpressing OsHox-6 exhibited phenotypic alteration at the normal irrigation by inducing tiller formation, suggesting a decrease in the apical dominance. Transgenic plants also showed significant enhancement in the total grain number, however, the number of empty grains also increased significantly (~16-22%). After imposed to the water stress, the number of empty grains in the transgenic lines was even higher (up to 83% in average). Furthermore, observations on the water loss rates, relative water contents and drought resistance indices (DRI) suggested that the overexpression of OsHox-6 did not significantly increase tolerance to water stress. Further research is required to reveal the detailed mechanisms of OsHox-6 in response to water and other abiotic stresses.