Short Linear Motifs (SLiMs) in “Core” RxLR Effectors of
            <i>Phytophthora parasitica</i>
            var.
            <i>nicotianae</i>
            : a Case of PpRxLR1 Effector

Chepsergon, Jane; Nxumalo, Celiwe Innocentia; Salasini, Brenda S C; Kanzi, Aquillah M.; Moleleki, Lucy N.

doi:10.1128/spectrum.01774-21

Cited by 3 publications

(1 citation statement)

References 108 publications

(137 reference statements)

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“…Rhizosphere microbial communities are extremely complex in terms of composition, the roles played by the multiple protagonists, and the types of interactions that take place [1][2][3] . In addition to direct interactions with their plant host (host-microbe), microorganisms interact with each other (microbe-microbe) through negative (antagonism), positive (cooperation), and neutral (commensalism) intra-and inter-kingdom interactions 2,4 .…”

Section: W I T H D R a W N Introductionmentioning

confidence: 99%

WITHDRAWN: Nitrogen sources enhance siderophore-mediated competition for iron between potato common scab and late blight causative agents

Stulanovic,

Kerdel,

Rezende

et al. 2023

Preprint

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How do pathogens colonizing the same host interact with each other? We evaluated here the types of interactions taking place between Streptomyces scabiei and Phytophthora infestans, the causative agents of common scab and late blight diseases on potato crops, respectively. Under most conditions tested S. scabiei impaired or completely inhibited the growth of P. infestans by producing either soluble and/or volatile compounds. Media component analysis revealed that increasing peptone levels correlated with increased inhibition of P. infestans. Comparative metabolomics showed that production of S. scabiei siderophores (desferrioxamines, pyochelin, scabichelin and turgichelin) increased with the quantity of peptone thereby suggesting that they participate in the inhibition of the oomycete growth. Mass spectrometry imaging further uncovered that the zones of secreted siderophores and of P. infestans growth inhibition coincided. Moreover, either the repression of siderophore production or the neutralization of the iron-chelating activity of siderophores both led to a resumption of P. infestans growth. Importantly, replacement of peptone by natural nitrogen sources such as sodium nitrate, ammonium sulfate, and urea also triggered siderophore production in S. scabiei. Overall, our work further emphasizes the importance of competition for iron between microorganisms that colonize the same niche. As common scab never alters the biological function of tubers, we propose that S. scabiei, under certain conditions, could play a protective role for its hosts against much more destructive pathogens through exploitative iron competition and volatile compound production.

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Section: W I T H D R a W N Introductionmentioning

confidence: 99%

WITHDRAWN: Nitrogen sources enhance siderophore-mediated competition for iron between potato common scab and late blight causative agents

Stulanovic,

Kerdel,

Rezende

et al. 2023

Preprint

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show abstract

Alternaria solani core effector Aex59 is a new member of the Alt a 1 protein family and is recognized as a PAMP

Qiu,

Zhang,

Liu

2024

International Journal of Biological Macromolecules

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“Order from disordered”: Potential role of intrinsically disordered regions in phytopathogenic oomycete intracellular effector proteins

Chepsergon

Moleleki

2023

Current Opinion in Plant Biology

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Short Linear Motifs (SLiMs) in “Core” RxLR Effectors of Phytophthora parasitica var. nicotianae : a Case of PpRxLR1 Effector

Abstract: The continuous gain and loss of RxLR effectors makes the control of Phytophthora spp. difficult. Therefore, in this study, we endeavored to identify RxLR effectors that are highly conserved among species, also known as “core” RxLR effectors (CREs).

Cited by 3 publications

References 108 publications

WITHDRAWN: Nitrogen sources enhance siderophore-mediated competition for iron between potato common scab and late blight causative agents

WITHDRAWN: Nitrogen sources enhance siderophore-mediated competition for iron between potato common scab and late blight causative agents

Alternaria solani core effector Aex59 is a new member of the Alt a 1 protein family and is recognized as a PAMP

“Order from disordered”: Potential role of intrinsically disordered regions in phytopathogenic oomycete intracellular effector proteins

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