Damage of the Root-Knot Nematode Meloidogyne javanica to Bell Pepper, Capsicum annuum

Moosavi, Mohammad Reza

doi:10.1007/bf03356559

Cited by 14 publications

(19 citation statements)

References 22 publications

(28 reference statements)

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“…Root-knot nematodes (RKN) (Nematoda: Meloidogyne) belong to the genus Meloidogyne which includes 90 species, the most important of which in terms of damages and diffusion are M. incognita, M. arenaria and M. javanica (Figure 4e). Nematodes disease occurs in both open field and greenhouses, and prediction of the crop losses that a certain population density of nematode may cause is of importance to decide whether to cultivate pepper or not [272]. Another species that has gained importance recently is M. enterolobii for which, the sources of resistance against the major species of Meloidogyne are ineffective on its control [273].…”

Section: Root-knot Nematodesmentioning

confidence: 99%

Overview of Biotic Stresses in Pepper (Capsicum spp.): Sources of Genetic Resistance, Molecular Breeding and Genomics

Parisi¹,

Alioto

Tripodi³

2020

IJMS

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Pepper (Capsicum spp.) is one of the major vegetable crops grown worldwide largely appreciated for its economic importance and nutritional value. This crop belongs to the large Solanaceae family, which, among more than 90 genera and 2500 species of flowering plants, includes commercially important vegetables such as tomato and eggplant. The genus includes over 30 species, five of which (C. annuum, C. frutescens, C. chinense, C. baccatum, and C. pubescens) are domesticated and mainly grown for consumption as food and for non-food purposes (e.g., cosmetics). The main challenges for vegetable crop improvement are linked to the sustainable development of agriculture, food security, the growing consumers’ demand for food. Furthermore, demographic trends and changes to climate require more efficient use of plant genetic resources in breeding programs. Increases in pepper consumption have been observed in the past 20 years, and for maintaining this trend, the development of new resistant and high yielding varieties is demanded. The range of pathogens afflicting peppers is very broad and includes fungi, viruses, bacteria, and insects. In this context, the large number of accessions of domesticated and wild species stored in the world seed banks represents a valuable resource for breeding in order to transfer traits related to resistance mechanisms to various biotic stresses. In the present review, we report comprehensive information on sources of resistance to a broad range of pathogens in pepper, revisiting the classical genetic studies and showing the contribution of genomics for the understanding of the molecular basis of resistance.

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Section: Root-knot Nematodesmentioning

confidence: 99%

Overview of Biotic Stresses in Pepper (Capsicum spp.): Sources of Genetic Resistance, Molecular Breeding and Genomics

Parisi¹,

Alioto

Tripodi³

2020

IJMS

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“…The biometric variables of parsley such as LH, FLW, DLW, RL, and SPAD (Figure 1,2,3) vary similar to the growth variables, decreasing with the increase in Piroot infection with Meloidogyne spp. markedly affecting plant physiology, especially the photosynthetic rate and nutrient uptake, and therefore its normal growth and development (Niño et al, 2008;Moosavi 2015). Fresh leaf and root weight tended to decrease with the increase in initial population density, corroborating Niño et al, (2008).…”

Section: Discussionmentioning

confidence: 63%

Respuesta del perejil crespo a diferentes densidades de población de Meloidogyne arenaria

Lozada-Villanueva

Casa-Ruiz

Bellé

2021

Rev. investig. altoandin.

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The effect of initial population density (Pi) of the peanut root-knot nematode, Melodoigyne arenaria, on curly leaf parsley growth was assessed in this study. The population densities of M. arenaria ranged from 0 to 64 eggs + second-stage juveniles (J2)/cm3 soil in sterile sandbags. The root gall index (RGI), reproduction factor (RF), fresh leaf weight (FLW), dry leaf weight (DLW), root fresh weight (RFW), root length (RL), leaf height (LH), and chlorophyll index (SPAD) were determined at 90 days after inoculation. FLW, DLW, RFW, LH, and SPAD data were fitted to the Seinhorst equation, y = m + (1 - m) zPi-T, to determine the tolerance limit T = 0.25 eggs +J2/cm3 soil for FLW, DLW, RFW, and LH, with relative means (m) of 0.52, 0.24, 0.22, and 0.4 respectively; conversely, the T value for SPAD was 0.125 eggs + J2/cm3 soil and with a m of 0.26. All biometric variables decreased with an increase in the initial population density (Pi). Nevertheless, the highest RF of M. arenaria in parsley was 78.92 for a Pi = 8 eggs + J2/cm3 soil, with an RGI value of 5 from Pi = 1 eggs + J2/cm3. Curly leaf parsley growth decreased with an increase in Pi of M. arenaria.

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“…Up to now, tolerance to root-parasitic nematodes is mainly studied in field crops (Seinhorst, 1985; Norshie et al ., 2011; Sasanelli et al ., 2013; Been et al ., 2015; Moosavi, 2015), making it difficult to resolve the underlying mechanisms as to why plants differ in their tolerance limits. Knowledge of the genetic underpinnings of tolerance is important for understanding how plants differ in their tolerance limits to root-feeding nematodes.…”

Section: Introductionmentioning

confidence: 99%

From root to shoot; Quantifying nematode tolerance inArabidopsis thalianaby high-throughput phenotyping of plant development

Willig

Sonneveld

Steenbrugge

et al. 2023

Preprint

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Nematode migration, feeding site formation, withdrawal of plant assimilates and activation of plant defence responses have a significant impact on plant growth and development. Plants display intraspecific variation in tolerance limits for root-feeding nematodes. Although disease tolerance has been recognised as a distinct trait in biotic interactions of mainly crops, we lack mechanistic insights. Progress is hampered by difficulties in quantification and laborious screening methods. We turned to the model plant Arabidopsis thaliana, since it offers extensive resources to study the molecular and cellular mechanisms underlying nematode-plant interactions. We established through imaging of tolerance-related parameters that green canopy area was an accessible and robust measure for assessing damage as the consequence of cyst nematode infection. Subsequently, we developed a high-throughput phenotyping platform to non-destructively measure the green canopy area growth of 960 A. thaliana plants simultaneously. We show that A. thaliana can be used to study tolerance limits of plants to cyst and root-knot nematodes. Although our results can be adequately modelled with classical tolerance limit quantifying methods, real-time monitoring allowed more accurate growth rate measurements. Based on our findings, we believe that our phenotyping platform will enable further studies into the underlying mechanisms of tolerance to below-ground biotic stress.

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Damage of the Root-Knot Nematode Meloidogyne javanica to Bell Pepper, Capsicum annuum

Cited by 14 publications

References 22 publications

Overview of Biotic Stresses in Pepper (Capsicum spp.): Sources of Genetic Resistance, Molecular Breeding and Genomics

Overview of Biotic Stresses in Pepper (Capsicum spp.): Sources of Genetic Resistance, Molecular Breeding and Genomics

Respuesta del perejil crespo a diferentes densidades de población de Meloidogyne arenaria

From root to shoot; Quantifying nematode tolerance inArabidopsis thalianaby high-throughput phenotyping of plant development

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