Biochemical Studies on “Bakanae” Fungus

Takahashi, Nobutaka; Kitamura, Hiroshi; Kawarada, Akira; Seta, Yasuo; Takai, Makoto; Tamura, Saburo; Sumiki, Yusuke

doi:10.1080/03758397.1955.10856832

Cited by 13 publications

(11 citation statements)

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“…Typical symptoms of Bakanae disease include infected plants several inches taller than the normal plants in the seedbed and field. The elongation is attributed to gibberellins (GA) and stunting to fusaric acid, both of which are produced by the fungus (Yabuta and Hayasi 1935 ; Takahashi et al 1955 ). These symptoms are similar to seedlings treated with gibberellic acid (GA 3 ) with a positive correlation existing between the GA 3 response and the pathogenic behaviour of F. fujikuroi (Thakur 1974 ; Sunder and Satyavir 1998 ; Ma et al 2008 ) indicating the role of gibberellins in the elongation behaviour.…”

Section: Discussionmentioning

confidence: 99%

Mapping quantitative trait loci responsible for resistance to Bakanae disease in rice

Fiyaz

Yadav

Krishnan

et al. 2016

Rice

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BackgroundBakanae or foot rot disease caused by Fusarium fujikuroi [teleomorph: Gibberella fujikuroi (Sawada) Ito] is emerging as a serious disease in rice. The disease causes both quantitative and qualitative losses to the grains under the field conditions. Breeding for resistance to Bakanae disease is a promising strategy to manage this emerging disease. In this study, we used a population of 168 F14 recombinant inbred lines (RILs) derived from two indica rice parents Pusa 1342, a highly resistant variety and Pusa Basmati 1121, a highly susceptible variety to map quantitative trait loci (QTLs) governing resistance against Bakanae disease.ResultsThe disease reaction of 168 F14 RILs were measured on the seedlings inoculated using Fusarium fujikuroi culture using high-throughput screening protocol under glasshouse conditions. Utilizing inclusive composite interval mapping, three QTLs governing resistance to Bakanae were identified, namely qBK1.1, qBK1.2 and qBK1.3 which accounted 4.76, 24.74 and 6.49 % of phenotypic variation, respectively. The major effect QTL designated qBK1.2 was mapped in 0.26 Mb region between RM5336 and RM10153. A total of 55 annotated genes were identified within the identified QTL region qBK1.2.ConclusionsThe novel QTLs identified in this study are useful resource for efficiently breeding rice cultivars resistant to Bakanae disease. This is the first report on identification of QTLs governing resistance against Bakanae in rice using inclusive composite interval mapping strategy in a RIL population.

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Section: Discussionmentioning

confidence: 99%

Mapping quantitative trait loci responsible for resistance to Bakanae disease in rice

Fiyaz

Yadav

Krishnan

et al. 2016

Rice

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“…In the P. gallaeciensis ‐ E. huxleyi system, the symbiont controls host physiological function and growth through production of endogenous host signaling molecules. In a similar manner, Gibberella fujikuroi controls the physiology of rice seedlings through production of the growth hormone gibberellic acid 7 , although this leads to death of the seedling and consumption by the fungal pathogen . Similar mechanisms of small‐molecule modulation of host behavior are utilized across may different host‐symbiont assemblages and biomes (Figures and ) and may manifest as symbiosis or pathogenesis and share similar molecular mechanisms …”

Section: Small‐molecule Signaling In Marine Ecosystemsmentioning

confidence: 99%

“…Similar modulation of host physiology by pathogens has been documented in plants. For example, the plant hormone gibberellic acid 7 was originally discovered in the pathogenic fungus Gibberella fujikuroi , the causative agent of Bakanae disease in rice . This fungus produces these endogenous plant elongation growth regulators causing overextension and structural failure of rice seedling stems, resulting in very high economic losses of rice crops …”

Section: Small Molecules In Terrestrial Plant Symbiosesmentioning

confidence: 99%

Bridging the Gap: Plant‐Endophyte Interactions as a Roadmap to Understanding Small‐Molecule Communication in Marine Microbiomes

Samples

Balunas

2020

ChemBioChem

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“…In fact, fundamental results have been obtained for some plant hormones in rice related research for the first time in history. For example, gibberellic acid has been identified from exudates of the fungus Gibberella fujikuroi as the causal agent of the bakanae disease of rice [ 1 ]. Intriguingly, recently, another milestone was formed in gibberellic acid research by identification of its receptor GID1 in rice [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Functional Analysis of Jasmonates in Rice through Mutant Approaches

Dhakarey

Peethambaran

Riemann

2016

Plants

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Jasmonic acid, one of the major plant hormones, is, unlike other hormones, a lipid-derived compound that is synthesized from the fatty acid linolenic acid. It has been studied intensively in many plant species including Arabidopsis thaliana, in which most of the enzymes participating in its biosynthesis were characterized. In the past 15 years, mutants and transgenic plants affected in the jasmonate pathway became available in rice and facilitate studies on the functions of this hormone in an important crop. Those functions are partially conserved compared to other plant species, and include roles in fertility, response to mechanical wounding and defense against herbivores. However, new and surprising functions have also been uncovered by mutant approaches, such as a close link between light perception and the jasmonate pathway. This was not only useful to show a phenomenon that is unique to rice but also helped to establish this role in plant species where such links are less obvious. This review aims to provide an overview of currently available rice mutants and transgenic plants in the jasmonate pathway and highlights some selected roles of jasmonate in this species, such as photomorphogenesis, and abiotic and biotic stress.

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Biochemical Studies on “Bakanae” Fungus

Cited by 13 publications

References 0 publications

Mapping quantitative trait loci responsible for resistance to Bakanae disease in rice

Mapping quantitative trait loci responsible for resistance to Bakanae disease in rice

Bridging the Gap: Plant‐Endophyte Interactions as a Roadmap to Understanding Small‐Molecule Communication in Marine Microbiomes

Functional Analysis of Jasmonates in Rice through Mutant Approaches

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