Flooding induction of alcohol dehydrogenase in shoots and roots of barley seedlings

Kato‐Noguchi, Hisashi

doi:10.1007/s11738-999-0022-z

Cited by 7 publications

(4 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In anoxia-sensitive maize and pea the ADH activity increase was mostly in roots, whereas in tolerant species like rice and Echinochloa it increased in coleoptiles (Cobb and Kennedy, 1987). However, this trend was not found in barley (Kato-Noguchi, 1999). …”

Section: Adjustments Of Carbohydrate Metabolism Under Low Oxygenmentioning

confidence: 91%

Tolerance of anaerobic conditions caused by flooding during germination and early growth in rice (Oryza sativa L.)

Miró¹,

Ismail²

2013

Front. Plant Sci.

163

134

View full text Add to dashboard Cite

Rice is semi-aquatic, adapted to a wide range of hydrologies, from aerobic soils in uplands to anaerobic and flooded fields in waterlogged lowlands, to even deeply submerged soils in flood-prone areas. Considerable diversity is present in native rice landraces selected by farmers over centuries. Our understanding of the adaptive features of these landraces to native ecosystems has improved considerably over the recent past. In some cases, major genes associated with tolerance have been cloned, such as SUB1A that confers tolerance of complete submergence and SNORKEL genes that control plant elongation to escape deepwater. Modern rice varieties are sensitive to flooding during germination and early growth, a problem commonly encountered in rainfed areas, but few landraces capable of germination under these conditions have recently been identified, enabling research into tolerance mechanisms. Major QTLs were also identified, and are being targeted for molecular breeding and for cloning. Nevertheless, limited progress has been made in identifying regulatory processes for traits that are unique to tolerant genotypes, including faster germination and coleoptile elongation, formation of roots and leaves under hypoxia, ability to catabolize starch into simple sugars for subsequent use in glycolysis and fermentative pathways to generate energy. Here we discuss the state of knowledge on the role of the PDC-ALDH-ACS bypass and the ALDH enzyme as the likely candidates effective in tolerant rice genotypes. Potential involvement of factors such as cytoplasmic pH regulation, phytohormones, reactive oxygen species scavenging and other metabolites is also discussed. Further characterization of contrasting genotypes would help in elucidating the genetic and biochemical regulatory and signaling mechanisms associated with tolerance. This could facilitate breeding rice varieties suitable for direct seeding systems and guide efforts for improving waterlogging tolerance in other crops.

show abstract

Section: Adjustments Of Carbohydrate Metabolism Under Low Oxygenmentioning

confidence: 91%

Tolerance of anaerobic conditions caused by flooding during germination and early growth in rice (Oryza sativa L.)

Miró¹,

Ismail²

2013

Front. Plant Sci.

163

134

View full text Add to dashboard Cite

show abstract

“…The transition from aerobic to anaerobic respiration during germination is the primary adaptation to the constraints of the energy supply under anoxia or hypoxia. Alcohol, lactate, and alanine fermentation routes are used by anaerobic respiration to replenish the NAD+ needed for glycolysis (Kato-Noguchi, 1999). Protein synthesis is redirected to only generate those enzymes required for the digestion of carbohydrates.…”

Section: Research Articlementioning

confidence: 99%

Screening of Anaerobic Germination Rice Genotypes in Nepal

Tripathi

Dhakal

Ghimire

et al. 2023

Int J Appl Sci Biotechnol

View full text Add to dashboard Cite

Poor germination has been the main obstacles to the widespread adoption of rainfed lowland rice production due to the saturated state of the soil, . In order to produce rice types appropriate for direct seeded culture, the current experiment was conducted to find rice with anaerobic germination tolerance. The screening techniques of the tray method were used to assess the anaerobic germination tolerance of 402 different rice genotypes. Under anaerobic conditions, the genotypes 10 genotypes namely, IR 129077:1-1-6-8-B, IR 129077:1-1-6-9-B, IR 129077:2-1-16-8-B, IR 129077:1-1-36-5-B, IR 129077:1-1-41-7-B, IR 129077:1-1-46-6-B, IR 129077:2-1-17-6-B, IR 129077:1-1-31-5-B, IR 129077:1-1-39-8-B, IR 129077:2-1-13-7-B, IR 129077:2-1-17-7-B and IR 129077:2-1-28-7-B recorded the highest germination percentages (> 80%). Under anaerobic germination, the recorded coleoptile length for all genotypes ranged from 0.50 to 10.6 cm. The best performing genotypes were chosen for genotyping using previously published SSR markers based on the screening results. On QTL analysis, anaerobic germination QTL (qAG) present on Chromosome number 11 and chromosome 12 for higher germination and QTL (qCL) on chromosome 12 for longer coleoptile. Int. J. Appl. Sci. Biotechnol. Vol 11(2): 78-84.

show abstract

“…Anaerobic respiration uses alcohol, lactate and alanine fermentation pathways to regenerate NAD + required for glycolysis. Among them, alcoholic fermentation is considered the most important (Kato-Noguchi, 1999). It produces only 2 ATPs per glucose molecule compared to 38 ATPs produced through aerobic respiration and therefore, protein synthesis is redirected to produce only those enzymes, which are essential for the metabolism of carbohydrates (Greenway and Setter, 1996).…”

Section: Conversion Of Aerobic To Anaerobic Respirationmentioning

confidence: 99%

Importance of anaerobic seed germination and seedling development in direct-seeded rice with special reference to Sri Lanka

Illangakoon¹,

Marambe

Keerthisena³

et al. 2019

SL J Food & Agric

View full text Add to dashboard Cite

Direct-seeded rice (DSR) is becoming more popular among paddy farmers but it results in irregular stand establishment and high weed infestation. Early season flooding is another constraint to rice production in tropics as well as some of the major rice-growing areas in global scale and Sri Lanka is not an exception. Ability of some rice (Oryza sativa L.) genotypes to tolerate flooding during germination and seedling growth or anaerobic germination (AG) tolerance could help in overcoming the major obstacles in DSR. The rice cultivars, their mechanisms and the major QTLs governing AG-tolerance have been identified and two genes namely AG1 and AG2 have been incorporated to popular rice varieties for direct use. However, limited attempts have been made to screen Sri Lankan rice entries for AG tolerance. This review emphasizes the progress of AG-tolerance research, current challenges, future prospects as well as the importance of screening and identifying AG-tolerant rice varieties and validating management options to use this technology in DSR system in Sri Lanka.

show abstract

Flooding induction of alcohol dehydrogenase in shoots and roots of barley seedlings

Cited by 7 publications

References 21 publications

Tolerance of anaerobic conditions caused by flooding during germination and early growth in rice (Oryza sativa L.)

Tolerance of anaerobic conditions caused by flooding during germination and early growth in rice (Oryza sativa L.)

Screening of Anaerobic Germination Rice Genotypes in Nepal

Importance of anaerobic seed germination and seedling development in direct-seeded rice with special reference to Sri Lanka

Contact Info

Product

Resources

About