Nematode lifecyle
After the egg hatches
What is J1?
Worm shaped
What is vermiform?
It feeds from outside the plant
What is ectoparasitic?
Male and female reproduction of nematodes
Sexual reproduction
Father of U.S. nematology
Nathan cobb
The most common infective stage
What is J3?
Pear shaped
What is globose/pyriform?
Move and feed outside the plant
What is migratory ectoparasitic?
Up to how many eggs can a nematode lay?
Up to 200
Percentage of nematodes that are parasitic
15%
What are biotrophs?
Tapered at both ends
What is fusiform?
Nematode that feeds within the plant while killing the plant cells as it moves
(2 words)
What is migratory endoparasitic?
nematodes ALWAYS lay eggs?
True or false
False
Which nematodes have denticles?
Animal nematodes
What do nematodes molt in their lifecycle?
Their cuticle
What is it called when male nematodes and female nematodes are different shapes even though they are the same species?
Sexual dimorphism
How do unarmed nematodes feed?
Mouth is open and the bacteria flow throughout the body and into the digestive system
Females only reproduce female offspring
What is parthenogenesis?
Nematode that has head inside of plant while feeding and body outside
Semi-endoparasitic
In what stage of the nematode's life cycle will their sex be determined?
*male or female
Adulthood is when their sex is determined, otherwise before then they are considered gender-less
Shape of the semi-endoparasitic nematode in lecture?
Pear shaped
globose
pyriform
How do plant nematodes feed with their stylet?
The stylet punctures the plant while carbs and proteins from the nematode's disgetive system flow through the stylet into the plant, breaking down the plant's cellular contents
Advantage of parthenogenesis
or disadvantage of parthenogenesis
What is strong adaptation?
No need for a male to mate?
all adults can produce offspring?
or
What is hardly any genetic variety?
Competition for resources at a high population level?
Symptom of nematode damage
Yellowing
Stunted growth