A major locus controlling malondialdehyde content under water stress is associated with Fusarium crown rot resistance in wheat

Ma, Jun; Du, Guangyue; Li, Xihuan; Zhang, Caiying; Guo, Jun

doi:10.1007/s00438-015-1053-3

Cited by 79 publications

(38 citation statements)

References 47 publications

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“…Earlier results have also acknowledged that drought notably enhanced the level of cell cytoplasm membrane peroxidation of plant species (Helaly et al 2017;Hajihashemi and Sofo 2018;Zhang and Shi 2018). The enhanced degrees of cell cytoplasm membrane peroxidation of plant species can adversely affect plant cell metabolism (Sharma et al 2012;Ma et al 2015). Fourthly, the inhibitory effects of drought on growth performance of wheat may also be ascribed to the distinctively downgraded plant enzymatic defensive ability of wheat under stress environments based on the lowered PPODA and PCATA of wheat.…”

Section: Discussionmentioning

confidence: 96%

Atmospheric N deposition alleviates the unfavorable effects of drought on wheat growth

et al. 2020

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Drought and atmospheric nitrogen deposition (AND) become increasingly serious in recent decades owing to the progressively rising anthropogenic activities. Thus, it is significant to assess the effects of combined drought and AND on plant morphological and physiological performance (MorPhyPer) to better elucidate the mechanisms that drive the successful plant life-history strategies under the combined drought and AND. The objective of this study is to evaluate the combined drought [imitated by polyethylene glycol-6000 (PEG 6000) solution] with different degrees and AND [a mixed N with a 1: 1: 1 ratio of NH 4-N: NO 3-N: CO(NH 2) 2-N] with different concentrations on MorPhyPer of wheat (Triticum aestivum L.) via the garden-pot cultivation under the condition with natural light for nearly sixty days. Results showed that drought dramatically reduced MorPhyPer of wheat. This phenomenon may be attributed to the gradually enhanced osmotic pressure generated by the dehydrated condition, the enhanced degrees of reactive oxygen species, the raised level of plant cell cytoplasm membrane peroxidation, and/or the downgraded plant enzymatic defensive ability. AND notably improved MorPhyPer of wheat mostly owing to the relieved N deficiencies. The combined drought and AND antagonistically affect plant supporting ability, leaf photosynthetic area, and belowground growing competitiveness of wheat. The reason may be due to the increased belowground moisture content under the combined drought and AND which can improve the efficiency and capacity of nutrients absorption (mainly absorb more N nutrients) by root and transport to the aboveground portion and subsequently raise the level of drought resistance. The reason may be also attributed to the enhanced leaf photosynthetic area which can capture more sunlight and increase the tolerance to the adverse environment. Accordingly, AND notably alleviated the unfavorable effects of drought on MorPhyPer of wheat basically.

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Section: Discussionmentioning

confidence: 96%

Atmospheric N deposition alleviates the unfavorable effects of drought on wheat growth

et al. 2020

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“…For instance, associations between FCR severity and drought and heat stress have long been known (Papendick and Cook, 1974;Smiley 2009), although the potential mechanisms involved in this association remain largely unknown. Interestingly, NILs that carry the FCR QTL Qcrs.cpi-3B contain lower malondialdehyde (MDA) content under both well-watered and water-deficit conditions than do those without this QTL (Ma et al, 2015). Given that low MDA content is correlated with stress tolerance, as MDA forms under stress through lipid peroxidation (Meloni et al, 2003), this finding raises the possibility that Qcrs.cpi-3B or another locus that is tightly linked to this QTL is a mediator of stress tolerance.…”

Section: Associations Between Fcr Resistance and Physiological And Dementioning

confidence: 99%

Fusarium crown rot caused by Fusarium pseudograminearum in cereal crops: recent progress and future prospects

Kazan

Gardiner

2018

Molecular Plant Pathology

210

158

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Diseases caused by Fusarium pathogens inflict major yield and quality losses on many economically important plant species worldwide, including cereals. Fusarium crown rot (FCR), caused by Fusarium pseudograminearum, is a cereal disease that occurs in many arid and semi-arid cropping regions of the world. In recent years, this disease has become more prevalent, in part as a result of the adoption of moisture-preserving cultural practices, such as minimum tillage and stubble retention. In this pathogen profile, we present a brief overview of recent research efforts that have not only advanced our understanding of the interactions between F. pseudograminearum and cereal hosts, but have also provided new disease management options. For instance, significant progress has been made in the genetic characterization of pathogen populations, the development of new tools for disease prediction, and the identification and pyramiding of loci that confer quantitative resistance to FCR in wheat and barley. In addition, transcriptome analyses have revealed new insights into the processes involved in host defence. Significant progress has also been made in understanding the mechanistic details of the F. pseudograminearum infection process. The sequencing and comparative analyses of the F. pseudograminearum genome have revealed novel virulence factors, possibly acquired through horizontal gene transfer. In addition, a conserved pathogen gene cluster involved in the degradation of wheat defence compounds has been identified, and a role for the trichothecene toxin deoxynivalenol (DON) in pathogen virulence has been reported. Overall, a better understanding of cereal host-F. pseudograminearum interactions will lead to the development of new control options for this increasingly important disease problem. Taxonomy: Fusarium pseudograminearum O'Donnell & Aoki; Kingdom Fungi; Phylum Ascomycota; Subphylum Pezizomycotina; Class Sordariomycetes; Subclass Hypocreomycetidae; Order Hypocreales; Family Nectriaceae; Genus Fusarium. Disease symptoms: Fusarium crown rot caused by F. pseudograminearum is also known as crown rot, foot rot and root rot. Infected seedlings can die before or after emergence. If infected seedlings survive, typical disease symptoms are browning of the coleoptile, subcrown internode, lower leaf sheaths and adjacent stems and nodal tissues; this browning can become evident within a few weeks after planting or throughout plant development. Infected plants may develop white heads with no or shrivelled grains. Disease symptoms are exacerbated under water limitation. Identification and detection: Fusarium pseudograminearum macroconidia usually contain three to five septa (22-60.5 × 2.5-5.5 μm). On potato dextrose agar (PDA), aerial mycelia appear floccose and reddish white, with red or reddish-brown reverse pigmentation. Diagnostic polymerase chain reaction (PCR) tests based on the amplification of the gene encoding translation elongation factor-1a (TEF-1a) have been developed for molecular identification. Host range: All maj...

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“…Quantification of the thiobarbituric acid reactive substances (TBARS) content TBARS content was determined by the method described by Ma et al (2015) with slight modifications. 0.5% (w/v) thiobarbituric acid in 20% (w/v) trichloroacetic acid solution was used as the extraction buffer.…”

Section: Determination Of the Total Flavonoid Content (Tfc)mentioning

confidence: 99%

Effects of UV‐B on vitamin C, phenolics, flavonoids and their related enzyme activities in mung bean sprouts (Vigna radiata)

Wang

Gui

Xue

et al. 2017

Int J of Food Sci Tech

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In this study, ultraviolet‐B radiation (UV‐B) was used to effect the accumulation of vitamin C, phenolics and flavonoids in mung bean sprouts. Results indicate that the content of vitamin C and flavonoids increased during the initial period, and after a brief decline, reached peak levels of 25.29 ± 1.02 mg/100 g FW and 726.67 ± 7.35 mg/100 g DW, respectively, at 2.5 h (1.845 kJ m−2), while the peak levels of the phenolics were 10741.33 ± 68.04 mg/100 g DW. The thiobarbituric acid reactive substances (TBARS) content decreases with the increase in irradiation time. The activities of the related enzymes, including phenylalanine ammonia‐lyase (PAL), L‐galactono‐1, 4‐lactone dehydrogenase (GalLDH), peroxidase (POD), polyphenol oxidase (PPO) and chalcone isomerase (CHI) were determined, which showed strong correlations with the change in the content of vitamin C, phenolics and flavonoids. In conclusion, the accumulation of vitamin C, phenolics and flavonoids in mung bean sprouts can be promoted by a low‐dose UV‐B irradiation.

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A major locus controlling malondialdehyde content under water stress is associated with Fusarium crown rot resistance in wheat

Cited by 79 publications

References 47 publications

Atmospheric N deposition alleviates the unfavorable effects of drought on wheat growth

Atmospheric N deposition alleviates the unfavorable effects of drought on wheat growth

Fusarium crown rot caused by Fusarium pseudograminearum in cereal crops: recent progress and future prospects

Effects of UV‐B on vitamin C, phenolics, flavonoids and their related enzyme activities in mung bean sprouts (Vigna radiata)

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