Plant defense responses in monocotyledonous and dicotyledonous host plants during root-knot nematode infection

Przybylska, Arnika; Obrępalska‐Stęplowska, Aleksandra

doi:10.1007/s11104-020-04533-0

Cited by 34 publications

(15 citation statements)

References 102 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Besides, we imply ABA has a potential role in Gpa2 functioning. This evidence is in line with the well-reported role of the above signaling in plant defense responses against various pathogens (Koornneef and Pieterse, 2008;Ali et al, 2018;Przybylska and Obrępalska-Stęplowska, 2020;Sun and Zhang, 2021); however, different from H1/Hero A transcriptome studies, which are all based on data comparison between the resistant and susceptible cultivars. We only infected resistant potato roots with a Gpa2-virulent population and an avirulent population of G. pallida.…”

Section: Downstream Signaling Involved In R Genes-mediated Resistance...supporting

confidence: 76%

Comparative Transcriptome Analysis Reveals the Specific Activation of Defense Pathways Against Globodera pallida in Gpa2 Resistant Potato Roots

Zheng

Bertran²,

Brand³

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

Cyst nematodes are considered a dominant threat to yield for a wide range of major food crops. Current control strategies are mainly dependent on crop rotation and the use of resistant cultivars. Various crops exhibit single dominant resistance (R) genes that are able to activate effective host-specific resistance to certain cyst nematode species and/or populations. An example is the potato R gene Gpa2, which confers resistance against the potato cyst nematode (PCN), Globodera pallida population D383. Activation of Gpa2 results in a delayed resistance response, which is characterized by a layer of necrotic cells formed around the developing nematode feeding structure. However, knowledge about the Gpa2-induced defense pathways is still lacking. Here, we uncover the transcriptional changes and gene expression network induced upon Gpa2 activation in potato roots infected with G. pallida. To this end, in vitro-grown Gpa2-resistant potato roots were infected with the avirulent population D383 and virulent population Rookmaker. Infected root segments were harvested at 3 and 6 dpi and sent for RNA sequencing. Comparative transcriptomics revealed a total of 1,743 differentially expressed genes (DEGs) upon nematode infection, of which 559 DEGs were specifically regulated in response to D383 infection. D383-specific DEGs associated with Gpa2-mediated defense mainly relates to calcium-binding activity, salicylic acid (SA) biosynthesis, and systemic acquired resistance (SAR). These data reveal that cyst nematode resistance in potato roots depends on conserved downstream signaling pathways involved in plant immunity, which are also known to contribute to R genes-mediated resistance against other pathogens with different lifestyles.

show abstract

Section: Downstream Signaling Involved In R Genes-mediated Resistance...supporting

confidence: 76%

Comparative Transcriptome Analysis Reveals the Specific Activation of Defense Pathways Against Globodera pallida in Gpa2 Resistant Potato Roots

Zheng

Bertran²,

Brand³

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…Examples include modulation of meristem determinacy [61] and stomatal guard cell density [48]. Several works have similarly highlighted diverse molecular responses to pathogen attack (for reviews, see [62][63][64]). Viewed holistically, genetic control of trait plasticity is clearly complex (see, e.g., [65])…”

Section: Measuring Active Adaptive Plasticitymentioning

confidence: 99%

Active and adaptive plasticity in a changing climate

Brooker¹,

Brown²,

George³

et al. 2022

Trends in Plant Science

View full text Add to dashboard Cite

“…Many studies of nematode resistance have indicated the action of few genes with greater effect (Passianotto, et al, 2017;Mota, et al, 2020). There are also other results, that indicate the action of lesser effect genes that have evolved over time, according to the gene-for-gene theory (Bell et al, 2019;Przybylska;Obrępalska-Stęplowska, 2020). In C. canephora, the plant-pathogen response mechanism is related to a hypersensitivity response, which occurs shortly after root penetration and establishment of a feeding site, starting an attack and defense gene interaction between pathogen and host (Lima et al, 2015;Maghuly;Jankowicz-Cieslak;Bado, 2020).…”

Section: Resultsmentioning

confidence: 99%

Resistance of new Coffea canephora clones to root-knot nematode (Meloidogyne incognita) in the western amazon

Rudnick

Junior

Fernandes

et al. 2020

View full text Add to dashboard Cite

Root-knot disease is among the main diseases affecting coffee crop. The plant selection to the development new resistant cultivars is among one the most efficient methods of control. The present work aimed to quantify the resistance responses of Coffea canephora clones to root-knot nematode Meloidogyne incognita in the Western Amazon. For this, 17 previously selected clones were evaluated in three experimental trials, carried out in the municipalities of Ji-Paraná and Porto Velho, Rondônia. The resistance to root-knot nematodes M. incognita were evaluated by the numbers of gall in the roots (NG) and by the reproductive factor (RF). The resistance response was also interpreted according the genetic diversity of the clones based in their morphological traits. The clones BRS3210, C12, BRS2314, BRS3137 and BRS1216 are resistant to M. incognita with RF of 0.34, 0.62, 0.79, 0.86 and 0.98, respectively. BRS3213, C125, C15, BRS2336, BRS3220 and C09 clones were classified as susceptible, with RF of 1.93, 1.95, 2.00, 2.31, 2.32 and 2.35. The BRS3193, C160 and BRS2357 clones were classified as very susceptible, with RF values of 3.03, 4.41 and 5.82, respectively. The clustering based on the genetic diversity of morphological traits indicated that genotypes more similar to the Robusta botanic variety had lower RF. The hybrid plants showed intermediate degrees of resistance indicating the segregation for the character of the M. incognita resistance. The clones BRS3210, C12, BRS2299, BRS2314, BRS3137 and BRS1216 expressed resistance responses to M. incognita with potential for growing resistant genotypes in the Western Amazon.

show abstract

Plant defense responses in monocotyledonous and dicotyledonous host plants during root-knot nematode infection

Cited by 34 publications

References 102 publications

Comparative Transcriptome Analysis Reveals the Specific Activation of Defense Pathways Against Globodera pallida in Gpa2 Resistant Potato Roots

Comparative Transcriptome Analysis Reveals the Specific Activation of Defense Pathways Against Globodera pallida in Gpa2 Resistant Potato Roots

Active and adaptive plasticity in a changing climate

Resistance of new Coffea canephora clones to root-knot nematode (Meloidogyne incognita) in the western amazon

Contact Info

Product

Resources

About