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Gandikota, Madhuri; Kochko, Alexandre de; Chen, Lili; Ithal, Nagabhushana; Fauquet, Claude; Reddy, A. R.

doi:10.1023/a:1009657923408

Cited by 57 publications

(3 citation statements)

References 41 publications

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“…For instance, inoculation with the fungus Cochliobolus heterostrophus on sorghum resulted in the dramatic reduction of the light-induced accumulation of anthocyanin, which could be exerted by repressing the expression of the anthocyanin biosynthesis genes F3H, DFR, and anthocyanidin synthase, whereas the activation of PR10, PAL, and CHS, as well as the synthesis of 3-deoxyanthocyanidin phytoalexins (Lo and Nicholson, 1998). Moreover, overexpressing maize C2 (colored-2, encoding chalcone synthase) gene in rice could enhance the resistance to blast fungus Magnaporthe grisea (Gandikota et al, 2001). Another study in maize showed that the effector protein TIN2 of maize fungal pathogen Ustilago maydis could target host protein kinase ZmTTK1, which is involved in the regulation of anthocyanin biosynthesis, to modulate anthocyanin, as well as lignin pathways, thereby to facilitate the pathogenicity of U. maydis (Tanaka et al, 2014).…”

Section: Potential Involvement Of Anthocyanin In Maize Resistance To Gsrmentioning

confidence: 99%

Integrated Gene Co-expression Analysis and Metabolites Profiling Highlight the Important Role of ZmHIR3 in Maize Resistance to Gibberella Stalk Rot

et al. 2021

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Gibberella stalk rot (GSR) caused by Fusarium graminearum is one of the most devastating diseases causing significant yield loss of maize, and GSR resistance is a quantitative trait controlled by multiple genes. Although a few quantitative trait loci/resistance genes have been identified, the molecular mechanisms underlying GSR resistance remain largely unexplored. To identify potential resistance genes and to better understand the molecular mechanism of GSR resistance, a joint analysis using a comparative transcriptomic and metabolomic approaches was conducted using two inbred lines with contrasting GSR resistance, K09 (resistant) and A08 (susceptible), upon infection with F. graminearum. While a substantial number of differentially expressed genes associated with various defense-related signaling pathways were identified between two lines, multiple hub genes likely associated with GSR resistance were pinpointed using Weighted Gene Correlation Network Analysis and K-means clustering. Moreover, a core set of metabolites, including anthocyanins, associated with the hub genes was determined. Among the complex co-expression networks, ZmHIR3 showed strong correlation with multiple key genes, and genetic and histological studies showed that zmhir3 mutant is more susceptible to GSR, accompanied by enhanced cell death in the stem in response to infection with F. graminearum. Taken together, our study identified differentially expressed key genes and metabolites, as well as co-expression networks associated with distinct infection stages of F. graminearum. Moreover, ZmHIR3 likely plays a positive role in disease resistance to GSR, probably through the transcriptional regulation of key genes, functional metabolites, and the control of cell death.

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Section: Potential Involvement Of Anthocyanin In Maize Resistance To Gsrmentioning

confidence: 99%

Integrated Gene Co-expression Analysis and Metabolites Profiling Highlight the Important Role of ZmHIR3 in Maize Resistance to Gibberella Stalk Rot

et al. 2021

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“…Several proteins have also been identified as good candidates to confer resistance against various species of fungi in rice plants, which are involved in tolerance of pathogen attack. Examples include lipid transfer protein (Guiderdoni et al, 2002), selenium-binding protein homolog (Sawada et al, 2004), genes taking part in flavonoid pathways (Gandikota et al, 2001), puroindoline proteins (Krishnamurthy et al, 2001), rice homolog of maize HC-toxin reductase (Uchimiya et al, 2002), defensins (Kanzaki et al, 2002), trichosanthins (Yuan et al, 2002), phytoalexins (Lee et al, 2004), protease inhibitor protein genes (Qu et al, 2003), genes involved in cell death (Matsumura et al, 2003), antifungal protein from Aspergillus flavus (Coca et al, 2004), and mycotoxin detoxifying compounds (Higa et al, 2003).…”

Section: Fungus-resistant Ricementioning

confidence: 99%

Genetic improvement of rice for biotic and abiotic stress tolerance

Ansari¹,

Shaheen²,

Bukhari³

et al. 2015

Turk J Bot

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IntroductionRice (Oryza sativa L.) is one of the oldest cultivated crops. It has been cultivated in India and China for several thousands of years (Poehlman and Sleper, 1995). The major cultivated species of rice, Oryza sativa (2n = 2x = 24), originated in southern and southwestern tropical Asia. The other species of cultivated rice, Oryza glaberrima (2n = 2x = 24), is indigenous to the upper valley of the Niger River and it is cultivated only in western tropical Africa. Twenty-three species and 10 recognized genome types (AA, BB, CC, BBCC, CCDD, EE, FF, GG, HHJJ, and HHKK; Gramene: http://www.gramene.org/species/ oryza/rice_taxonomy.html) of Oryza are recognized. Close relatives of O. sativa are the wild perennial species O. rufipogon and the wild annual species O. nivara. Both are diploid weedy species with the AA genome.Rice is an important food crop and it needs continuous improvement due to the continuous increase in population. The major objectives to improve rice crops using biotechnological techniques include: 1) high yield potential, 2) early maturity, 3) resistance to lodging and shattering, 4) resistance to stress environments, 5) disease resistance, 6) insect resistance, 7) grain quality, and 8) enhancement of nutritional components. Economic importance of riceRice (Oryza sativa L.) is the most important crop of world. About 90% of the world's rice is grown in China, India, Pakistan, Japan, Korea, Southeast Asia, and other adjacent areas (USDA, 2014). Outside of Asia, Brazil and the United States produce the largest amounts of rice (Poehlman and Sleper, 1995). Rice is the staple food for over one-half of the world's people (FAO, 2008). In Pakistan, rice is a highly valued food crop and it is also a major export item. It accounts for 3.2% of the total value added in agriculture and 0.7% of the GDP. Area sown for rice is estimated at 2.891 × 10 6 ha and the production was 7.005 × 10 6 t in -2015 (Ministry of Finance, 2015. Rice is cultivated in diversified climatic conditions of Pakistan. Basmati rice (Indica) is grown in the traditional rice-growing belt of Punjab Province. In Swat, in high altitude alpine valleys, temperate Japonica rice is grown. In the south of Khyber Pakhtunkhwa, Sindh and Baluchistan provinces, IRRItype long-grain heat-tolerant tropical rice is mainly grown. Transformation of rice cropsThe world will need about 25% more rice by the year 2030 to meet the estimated demand of an increasing global population (Wani and Sah, 2014). One way to meet this challenge is to grow rice on more area, which is difficult due to increasing urbanization and escalating population in Abstract: Rice (Oryza sativa L.) is among the most important food crops that provide a staple food for nearly half of the world's population. Rice crops are prone to various types of stresses, both biotic and abiotic. Biotic stresses include insect pests, fungus, bacteria, viruses, and herbicide toxicity. Among abiotic stresses, drought, cold, and salinity are also well studied in rice. Various genes have been identified,...

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“…Potatoes rich in anthocyanin presented resistance against Pectobacterium carotovorum [13]. Anthocyanin present in rice increased the resistance against the rice blast pathogen, Magnaporthe grisea [14]. In Lupinus, cases of resistance to Colletotrichum lupini were identified in some genotypes of Lupinus angustifolius and L. albus [2,15].…”

Section: Introductionmentioning

confidence: 99%

Response to Anthracnose in a Tarwi (Lupinus mutabilis) Collection Is Influenced by Anthocyanin Pigmentation

Guilengue

Neves-Martins

Talhinhas

2020

Plants

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Anthracnose, caused by Colletotrichum lupini, is a major limiting factor for lupin production. Tarwi or Andean Lupin (Lupinus mutabilis) is generally regarded as susceptible to anthracnose, but the high protein and oil content of its seeds raise interest in promoting its cultivation in Europe. In this study we evaluated the response to anthracnose of 10 tarwi accessions contrasting in anthocyanin pigmentation, by comparison to white lupin (Lupinus albus), using a contemporary Portuguese fungal isolate. A severity rating scale was optimized, including weighted parameters considering the type of symptoms and organs affected. All tarwi accessions were classified as susceptible, exhibiting sporulating necroses on the main stem from seven days after inoculation. Anthracnose severity was lower on anthocyanin-rich tarwi plants, with accession LM34 standing out as the less susceptible. Accession I82 better combines anthracnose response and yield. In global terms, disease severity was lower on white lupin than on tarwi. Although based on a limited collection, the results of the study show the existence of genetic variability among L. mutabilis towards anthracnose response relatable with anthocyanin pigmentation, providing insights for more detailed and thorough characterization of tarwi resistance to anthracnose.

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Cited by 57 publications

References 41 publications

Integrated Gene Co-expression Analysis and Metabolites Profiling Highlight the Important Role of ZmHIR3 in Maize Resistance to Gibberella Stalk Rot

Integrated Gene Co-expression Analysis and Metabolites Profiling Highlight the Important Role of ZmHIR3 in Maize Resistance to Gibberella Stalk Rot

Genetic improvement of rice for biotic and abiotic stress tolerance

Response to Anthracnose in a Tarwi (Lupinus mutabilis) Collection Is Influenced by Anthocyanin Pigmentation

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