The Green Revolution shaped the population structure of the rice pathogen <i>Xanthomonas oryzae</i> pv. <i>oryzae</i>

Quibod, Ian Lorenzo; Atieza-Grande, Genelou; Oreiro, Eula Gems; Palmos, Denice; Nguyen, Marian Hanna; Coronejo, Sapphire; Aung, Ei Ei; Nugroho, Cipto; Román-Reyna, Verónica; Burgos, M. R. G.; Capistrano, Pauline; Dossa, Sylvestre G.; Onaga, Geoffrey; Saloma, Caesar; Cruz, Casiana Vera; Oliva, Ricardo

doi:10.1038/s41396-019-0545-2

Cited by 40 publications

(31 citation statements)

References 70 publications

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“…oryzae (Xoo), and they reduce copper in the xylem (Jiang et al, 2013;Oliva et al, 2019;Varshney et al, 2019). The pathogen emerges by breaking the resistance pressure of varieties planted in approximately 80% of the total crop cultivation area carrying the resistance gene Xa4 on chromosome 11 introduced in the 60s in the variety IR20 (Quibod et al, 2020) Xanthomonas oryzae can also infect wild grasses and become an emergent microorganism that is di cult to control (Lang et al, 2019).…”

Section: Bacteria Fungi and Virus Resistancementioning

confidence: 99%

Rice agronomic traits and variability induced by mutagenesis

Hernández-Soto¹,

Echeverría-Beirute²,

Abdelnour-Esquivel³

et al. 2021

Preprint

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Understanding agronomic traits at a genetic level enables the leveraging of this knowledge to produce crops that are more productive and resilient, have better quality and are adjusted for consumer preferences. In the last decade, rice has become a model to validate the function of specific genes, resulting in valuable but scattered information. Here, we aimed to identify particular genes in rice related to traits that can be targeted by different mutation techniques in the breeding of crops. We selected gain of function, misfunction, and specific mutations associated with phenotypes of agronomic interest. The review includes specific trait-related genes involved in domestication, stress, herbicide tolerance, pathogen resistance, grain number, quality, weight, plant structure, nitrogen use, and others. The information presented can be used for rice and crops with similar or homologous genes to breed crops that require improvement to achieve more sustainable production in challenging farming conditions.

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Section: Bacteria Fungi and Virus Resistancementioning

confidence: 99%

Rice agronomic traits and variability induced by mutagenesis

Hernández-Soto¹,

Echeverría-Beirute²,

Abdelnour-Esquivel³

et al. 2021

Preprint

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“…2017; Quibod et al . 2020) and DNA fingerprinting method based on repetitive element IS1112 with a very high copy number is widely used to determine the genetic variability among X. oryzae pv . oryzae isolates (Leach et al .…”

Section: Introductionmentioning

confidence: 99%

Intra‐regional diversity of rice bacterial blight pathogen,Xanthomonas oryzaepv.oryzae, in the Andaman Islands, India: revelation by pathotyping and multilocus sequence typing

et al. 2020

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Aim To investigate the genetic and pathogenic variability of Xanthomonas oryzae pv. oryzae causing bacterial blight in rice on the remote Andaman Islands, India. Methods and Results A total of 27 yellow‐pigmented bacterial isolates representing rice fields of Andaman Islands incited blight on the susceptible‐rice cultivar, C14‐8. Phenotypic, pathogenic traits and 16S rRNA gene sequences revealed their identity as X. oryzae pv. oryzae. Virulence profiling indicated the prevalence of seven pathotypes of X. oryzae pv. oryzae on the Islands. Pathotypes‐VI and ‐VII were highly virulent, whereas the pathotype‐I was less virulent. Multilocus sequence typing based on nucleotide sequence polymorphism in nine housekeeping genes dnaK; fyuA; gyrB (two loci): rpoD; fusA; gapA; gltA and lepA clustered 27 isolates into 17 sequence types (STs) segregated into two clonal‐complexes (CC). While CC‐I comprised of isolates from Andaman Island, the CC‐II is a mixture of isolates representing mainland India and Andaman Island. The data revealed trans‐boundary pathogen introduction and a consequent intra‐regional diversification on these islands due to the deployment of different rice cultivars in different regions. Conclusions Genotyping and pathotyping of sland isolates revealed seven pathotypes distributed in two clonal complexes with strong indications for trans‐boundary movement and consequent diversification of the bacterial pathogen. Highly virulent pathotypes of X. oryzae pv. oryzae that could overcome combinations of R‐genes, xa13+Xa21 as well as xa5+xa13 were found prevalent in the Andaman Islands Significance and Impact of the Study Genetic and virulence analysis of X. oryzae pv. oryzae in the Andaman Islands revealed introduction and host‐mediated regional diversification and local adaptation of X oryzae pv. oryzae. The study calls for the need of multi‐gene pyramiding for durable disease resistance and establishing stringent quarantine measures for safeguarding island agricultural practices in the future.

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“…Bacterial diseases of rice plants will lead to the reduction of rice yield and hence serious decreases in crop quality and insufficient food supply [1][2][3]. Bacterial leaf blight of rice infected by Xanthomonas oryzae pv.…”

Section: Introductionmentioning

confidence: 99%

“…((2-fluoroethyl)thio)-1,3,4-oxadiazol-2-yl)methyl 4-chlorobenzenesulfonate (4a-15). White liquid; yield, 80.5%;1 H NMR (400 MHz, CDCl 3 ) δ 7.81-7.75 (m, 2H, Ar-H), 7.50-7.45 (m, 2H, Ar-H), 5.19 (s, 2H, -CH 2 -),4.72 (t, J = 5.7 Hz, 1H, -CH-),4.60 (t, J = 5.7 Hz, 1H, -CH-),3.49 (t, J = 5.7 Hz, 1H, -CH-),3.43 (t, J = 5.7 Hz, 1H, -CH-) 13. C NMR (100 MHz, CDCl 3 ) δ 166 17,.…”

mentioning

confidence: 99%

Synthesis and Antibacterial Evaluation of Novel 1,3,4-Oxadiazole Derivatives Containing Sulfonate/Carboxylate Moiety

Wang

Zhou

et al. 2020

Molecules

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In order to discover new lead compounds with high antibacterial activity, a series of new derivatives were designed and synthesized by introducing a sulfonate or carboxylate moiety into the 1,3,4-oxadiazole structure. Antibacterial activity against two phytopathogens, Xanthomonas oryzae pv. oryzae (Xoo) and Xanthomonas axonopodis pv. citri (Xac), was assayed in vitro. The preliminary results indicated that ten compounds including 4a-1-4a-4 and 4a-11-4a-16 had good antibacterial activity against Xoo, with EC50 values ranging from 50.1-112.5 µM, which was better than those of Bismerthiazol (253.5 µM) and Thiodiazole copper (467.4 µM). Meanwhile, 4a-1, 4a-2, 4a-3 and 4a-4 demonstrated good inhibitory effect against Xanthomonas axonopodis pv. citri with EC50 values around 95.8-155.2 µM which were better than those of bismerthiazol (274.3 µM) and thiodiazole copper (406.3 µM). In addition, in vivo protection activity of compound 4a-2 and 4a-3 against rice bacterial leaf blight was 68.6% and 62.3%, respectively, which were better than bismerthiazol (49.6%) and thiodiazole copper (42.2%). Curative activity of compound 4a-2 and 4a-3 against rice bacterial leaf blight was 62.3% and 56.0%, which were better than bismerthiazol (42.9%) and thiodiazole copper (36.1%). Through scanning electron microscopy (SEM) analysis, it was observed that compound 4a-2 caused the cell membrane of Xanthomonas oryzae pv. oryzae ruptured or deformed. The present results indicated novel derivatives of 5-phenyl sulfonate methyl 1,3,4-oxadiazole might be potential antibacterial agents.

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The Green Revolution shaped the population structure of the rice pathogen Xanthomonas oryzae pv. oryzae

Cited by 40 publications

References 70 publications

Rice agronomic traits and variability induced by mutagenesis

Rice agronomic traits and variability induced by mutagenesis

Intra‐regional diversity of rice bacterial blight pathogen,Xanthomonas oryzaepv.oryzae, in the Andaman Islands, India: revelation by pathotyping and multilocus sequence typing

Synthesis and Antibacterial Evaluation of Novel 1,3,4-Oxadiazole Derivatives Containing Sulfonate/Carboxylate Moiety

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