Effect of Temperature on the Embryogenesis of Three Geographically Distinct Populations of Meloidogyne incognita Is Driven by Intrinsic Thermal Acclimation Reaction

Research interest in the mechanisms enabling plant-parasitic nematodes to adjust their physiological performance and cope with changing temperatures has intensified in light of global warming. Here, we show that geographically distinct populations of the root-knot nematode Meloidogyne incognita, whi...

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Veröffentlicht in:Plant disease. - 1997. - 108(2024), 8 vom: 31. Aug., Seite 2530-2541
1. Verfasser: Hada, Alkesh (VerfasserIn)
Weitere Verfasser: Bucki, Patricia, Shimoni, Natalia Sichov, Glanz, Eyal, Kumar, Anil, Miyara, Sigal Brown
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article climate change early development embryogenesis hatching rate root-knot nematode temperature thermal time
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520 |a Research interest in the mechanisms enabling plant-parasitic nematodes to adjust their physiological performance and cope with changing temperatures has intensified in light of global warming. Here, we show that geographically distinct populations of the root-knot nematode Meloidogyne incognita, which is prevalent in the three main pepper-growing regions in Israel-Carmel Valley (Carmel), Jordan Valley (JV), and Arava Rift (Arava)-possess persistent differences in their thermal acclimation capacity, which affect pre- and postembryonic development. The optimal temperature for embryonic growth completion was 25°C for the Carmel population; 25 and 30°C for the JV population; and 30°C for the Arava population. Cumulative hatching percentages showed variations among populations; relative to hatching at 25°C, the Carmel population experienced hatching reduction at the higher studied temperatures 30 and 33°C, while the JV and Arava populations exhibited an increase in hatching at 30 and 33°C, respectively. Juvenile survival indicates that at the lowest temperature (20°C), the Carmel population gained the highest survival rates throughout the experimental duration, while at the same duration at 33°C, the Arava population gained the highest survival rate. Infective juveniles of the Carmel population demonstrated increased penetration of tomato roots at 25°C compared to the JV and Arava populations. Inversely, at 33°C, increased penetration was observed for the Arava compared to the Carmel and JV populations. Altogether, the Arava population's performance at 33°C might incur distinct fitness costs, resulting in consistent attenuation compared to the Carmel population at 25°C. Precisely defining a population's thermal acclimation response might provide essential information for models that predict the impact of future climate change on these populations 
650 4 |a Journal Article 
650 4 |a climate change 
650 4 |a early development 
650 4 |a embryogenesis 
650 4 |a hatching rate 
650 4 |a root-knot nematode 
650 4 |a temperature 
650 4 |a thermal time 
700 1 |a Bucki, Patricia  |e verfasserin  |4 aut 
700 1 |a Shimoni, Natalia Sichov  |e verfasserin  |4 aut 
700 1 |a Glanz, Eyal  |e verfasserin  |4 aut 
700 1 |a Kumar, Anil  |e verfasserin  |4 aut 
700 1 |a Miyara, Sigal Brown  |e verfasserin  |4 aut 
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