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All Journal HAYATI Journal of Biosciences AGRIVITA, Journal of Agricultural Science
Kim, Kyung Min
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Salt and Heat Stress Trigger Morpho-Physiological Changes, Antioxidant Enzyme and Secondary Metabolites Gene Expression in Rice (Oryza sativa L.) Ubaidillah, Mohammad; Rozzita, Noor; Mufadilah, Mitha Aprilia; Thamrin , Nurhaliza; Puspito, Agung Nugroho; Kim, Kyung Min
HAYATI Journal of Biosciences Vol. 31 No. 2 (2024): March 2024
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.31.2.256-270

Abstract

Climate change significantly increases salt and heat stress in rice plants. This condition causes plants to activate antioxidant enzymes and produce secondary metabolites. This study aimed to determine the morpho-physiological changes and gene expression profiles of antioxidant enzymes and secondary metabolites. This study used a completely randomized design factorial. The first factor was local rice varieties (IR64, Silaun, and Cigeulis), and the second factor was stress treatments (control, NaCl 150 mM, 40°C, and NaCl 150 mM + 40°C). The results showed that multiple stress significantly affected the plant height, stem length, stem diameter, leaf area, root length, total main root, plant biomass, necrotic length, chlorophyll content, relative water content, and plant ROS production. Multiple stress could up-regulate the gene expression of antioxidant enzymes (Mn-SOD, Cu/Zn SOD, Cytosolic APX, OsAPX1, CAT, OsCATA, and GPOD) in rice after stress combination treatments and increase the secondary metabolites gene expression (P5CS and GABA-T) in all rice varieties. Still, the OsNOMT gene was only active in the Cigeulis variety.
Morpho-Physiological Response of Indonesian Rice (Oryza sativa L.) Under Combination Heat and Drought Stress Hartatik, Sri; Wardani, Dewi Kusuma; Choirunnisa, Eviyanti; Avivi, Sholeh; Puspito, Agung Nugroho; Kim, Kyung Min; Ubaidillah, Mohammad
AGRIVITA Journal of Agricultural Science Vol 46, No 3 (2024)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v46i3.4238

Abstract

Heat stress and drought are combination of stresses that have the potential to occur simultaneously in extreme temperature changes. Rice is the main food crop in Indonesia and includes plants that are sensitive to stress. Indonesian local rice is believed to have high adaptability to Indonesian's geographical conditions, however there is lack of updated data to explain this information. This study attempts to determine the level of adaptability or resistance of Indonesian local rice to a combination of heat stress and drought. The results showed that the 24 Indonesian local rice accessions were divided into 3 resistance classes. The high resistance class is Sintha, the resistance classes are Gajah Mungkur, Kalimutu, Kapuas, Sukamandi, Seratus Malam, Cabacu, Bengawan Solo and Cisokan, as well as the medium resistance classes Jatiluhur, Batang Ombilin, Mahakam, Nona Bokra, Pucuk, Bengawan, Rojolele, IR64, Barumun, Cisadane, Memberamo, Cibodas, Gilirang, Fatmawati and Ciherang.
Co-Authors Choirunnisa, Eviyanti Dewi Kusuma Wardani Mufadilah, Mitha Aprilia Puspito, Agung Nugroho Rozzita, Noor Sholeh Avivi Sri Hartatik Thamrin , Nurhaliza Ubaidillah, Mohammad