Wheat BAX inhibitor-1 contributes to wheat resistance to Puccinia striiformis

Wang, Xiaojie; Tang, Chunlei; Huang, Xueling; Li, Fangfang; Chen, Xianming; Zhang, Gang; Sun, Yanfa; Han, Dejun; Zhen-sheng, Kang

doi:10.1093/jxb/ers140

Cited by 52 publications

(35 citation statements)

References 61 publications

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“…Nevertheless, there are some similarities between plant and animal PCD that indicate common elements in both systems. For instance, reactive oxygen intermediates, cysteine proteases, DNA degradation, and some morphological changes seem to take part in both animal and plant PCD (Wang et al 2012). Identification of some plant homologues of animal cell death suppressors, for instance BAG (Bcl-2 associated athano- gene), DAD (defender against apoptotic death) and BI-1, indicates common elements of negative cell death control for eukaryotes.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, AtBI-1 overexpression in Arabidopsis inhibits the BAX-mediated cell death in planta (Kawai-Yamada et al 2001, 2004). Downregulation of BI-1 in cultured rice cells upon challenge with a fungal elicitor from the rice blast pathogen ( Magnaporthe grisea ) was concomitant with progression of cell death, and conversely, overexpressed rice BI-1 can improve cell survival against this elicitor (Matsumura et al 2003; Wang et al 2012). BI-1 regulates ROS generation and functions as a Ca 2+ /H + antiporter thus the signaling process of Ca 2+ flowing into cytosolic space via ROS-dependent activation of calcium channels on the vacuolar and/or plasma membranes may be controlled by BI-1.…”

Section: Introductionmentioning

confidence: 99%

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Melatonin restricts Pb-induced PCD by enhancing BI-1 expression in tobacco suspension cells

Kobylińska

Posmyk

2016

Biometals

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Melatonin is a conserved substance, which was discovered in the evolutionary distant organisms like bacteria, plants, invertebrates and vertebrates. Recent studies have shown that melatonin despite its possible role in photoperiod processes, has been found to be a direct free radical scavenger and an indirect antioxidant. In this report the impact of exogenous melatonin on the Bax inhibitor-1 (BI-1) expression level in Nicotiana tabacum L. line Bright Yellow 2 (BY-2) suspension cells exposed to lead was examined. BI-1 is a well-conserved protein in plants and animals that serves as the inhibitor of mammalian proapoptotic proteins as well as plant ROS-induced cell death. Our results showed that pretreatment with 200 nm melatonin, expressing BI-1 and fortified tobacco suspension cells against damages induced by lead. The obtained results revealed, that melatonin significantly increases BY-2 cells proliferation and protects BY-2 cells against death. Moreover, the conducted analyses showed for the first time that the protective effect of melatonin may be connected not only with its antioxidant properties but also with its direct impact on elevating BI-1 expression and lead-induced programmed cell death (PCD) restriction.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Melatonin restricts Pb-induced PCD by enhancing BI-1 expression in tobacco suspension cells

Kobylińska

Posmyk

2016

Biometals

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“…Overexpression of barley BI-1 in transgenic carrots resulted in enhanced resistance to the fungal pathogens Botritis cinerea and Chalara elegans (Imani et al 2006). In wheat cultivar resistant to Puccinia striiformis, BI-1 ortholog TaBI-1 was overexpressed in response to infection while its silencing resulted in the conversion of a resistant genotype into a susceptible one (Wang et al 2012). However, Eichmann et al (2010) reported that silencing the BI-1 ortholog in barley resulted in increasing resistance to powdery mildew.…”

Section: Discussionmentioning

confidence: 99%

Molecular response of resistant and susceptible apple genotypes to Erwinia amylovora infection

Markiewicz

Michalczuk

2015

Eur J Plant Pathol

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The leaves of apple cultivars resistant (cv. Free Redstar) and susceptible (cv. Idared) to fire blight were infiltrated with Erwinia amylovora. After 24 hours, differential gene expression was analysed using cDNA-AFLP technique. The expression pattern in the resistant cultivar, especially up-regulated genes encoding proteins involved in hypersensitive reaction and controlled cell death (BAX inhibitor and HIR protein), support the hypothesis that hypersensitive reaction is the main mechanism of resistance to fire blight in cv. Free Redstar. An important role in the resistance reaction is also played by proteins involved in signal transduction, especially serine/threonine kinase, which has been shown previously to confer resistance to fungal and bacterial pathogens in a number of plant species. A potential role in the defence against Erwinia amylovora was probably also β-1,3-glucanase (PR-2 protein), which was up-regulated in the resistant cultivar only. One of the proteins known to be involved in plant defense against pathogens -glutamate receptor -was up-regulated in the leaves of cv. Idared. Although the susceptible phenotype of this cultivar shows that expression of glutamate receptor only does not provide substantial resistance, it may be considered in gene pyramiding in apple breeding programmes.

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“…By virtue of the known PCD mechanism in animals, a series of key components in the cell death pathway of plants have been identified and characterized. BAX inhibitor-1 (TaBI-1) [38] , defender against apoptotic death (TaDAD2) [39] and monodehydroascorbate reductase (TaMDAR6) [40] act as negative regulators of PCD in wheat triggered by the Bax gene and Pst. TaDAD2 is presumed to function as a suppressor of cell death in the early stages of wheat-Pst interaction.…”

Section: Cell Death Related Genesmentioning

confidence: 99%

New insights in the battle between wheat and Puccinia striiformis

Tang¹,

Wang²,

Cheng³

et al. 2015

Front. Agr. Sci. Eng.

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Wheat stripe rust caused by Puccinia striiformis f. sp. tritici (Pst) poses a great threat to wheat production worldwide. The rapid change in virulence of Pst leads to a loss of resistance in currently resistant wheat cultivars, which results in frequent disease epidemics. Therefore, a major focus is currently placed on investigating the molecular mechanisms underlying this rapid variation of pathogenicity and coevolving wheat resistance. Limited by the lack of a system for stable transformation of Pst and the difficulties in wheat transformation, it is not easy to generate deeper insights into the wheat-Pst interaction using established genetic methods. Nevertheless, considerable effort has been made to unravel the wheat-Pst interaction and significant progress is being made. Histology and cytology have revealed basic details of infection strategies and defense responses during wheat-Pst interactions, identified cellular components involved in wheat-Pst interactions, and have helped to elucidate their role in the infection process or in plant defense responses. Transcriptome and genome sequencing has revealed the molecular features and dynamics of the wheat-Pst pathosystem. Extensive molecular analyses have led to the identification of major components in the wheat resistance response and in Pst virulence. Studies of wheat-Pst interactions have now entered a new phase in which cellular and molecular approaches are being used. This review focuses on the cellular biology of wheat-Pst interactions and integrates the emerging data from molecular analyses with the histocytological observations.

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Wheat BAX inhibitor-1 contributes to wheat resistance to Puccinia striiformis

Cited by 52 publications

References 61 publications

Melatonin restricts Pb-induced PCD by enhancing BI-1 expression in tobacco suspension cells

Melatonin restricts Pb-induced PCD by enhancing BI-1 expression in tobacco suspension cells

Molecular response of resistant and susceptible apple genotypes to Erwinia amylovora infection

New insights in the battle between wheat and Puccinia striiformis

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