Novyella is a subgenus of the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Plasmodium

Plasmodium

Plasmodium is a genus of parasitic protists. Infection by these organisms is known as malaria. The genus Plasmodium was described in 1885 by Ettore Marchiafava and Angelo Celli. Currently over 200 species of this genus are recognized and new species continue to be described.Of the over 200 known...

- all of which are parastic protozoa

Protozoa

Protozoa are a diverse group of single-cells eukaryotic organisms, many of which are motile. Throughout history, protozoa have been defined as single-cell protists with animal-like behavior, e.g., movement...

. The subgenus was created in 1963 by created by Corradetti et al.. Species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 in this subgenus

Subgenus

In biology, a subgenus is a taxonomic rank directly below genus.In zoology, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the generic name and the specific epithet: e.g. the Tiger Cowry of the Indo-Pacific, Cypraea tigris Linnaeus, which...

 infect bird

Bird

Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

s. It unites the avian malaria parasites with small erythrocytic meronts and elongated gametocyte

Gametocyte

A gametocyte is a eukaryotic germ cell that divides by mitosis into other gametocytes or by meiosis into gametids during gametogenesis. Male gametocytes are called spermatocytes, and female gametocytes are called oocytes....

s.

The type species is Plasmodium vaughani

Plasmodium vaughani

Plasmodium vaughani is a parasite of the genus Plasmodium subgenus Novyella.Like all Plasmodium species P. vaughani has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds.- Description :...

.

Diagnostic features

Species in the subgenus Novyella have the following characteristics:

• Mature schizonts are either smaller than or only slightly larger than the host nucleus
  Cell nucleus
  In cell biology, the nucleus is a membrane-enclosed organelle found in eukaryotic cells. It contains most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these...
  
  . They contain scanty cytoplasm
  Cytoplasm
  The cytoplasm is a small gel-like substance residing between the cell membrane holding all the cell's internal sub-structures , except for the nucleus. All the contents of the cells of prokaryote organisms are contained within the cytoplasm...
  
  .
• Gametocytes are elongated. Sexual stages in this subgenus resemble those of Haemoproteus
  Haemoproteus
  Haemoproteus is a genus of protozoa that are parasitic in birds, reptiles and amphibians. Its name is derived from Greek: Haima - blood and Proteus - a sea god who had the power of assuming different shapes. The name Haemoproteus was first used in the description of Haemoproteus columbae in the...
  
  .
• Exoerythrocytic schizogony occurs in the mononuclear phagocyte
  Phagocyte
  Phagocytes are the white blood cells that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells. Their name comes from the Greek phagein, "to eat" or "devour", and "-cyte", the suffix in biology denoting "cell", from the Greek kutos, "hollow vessel". They are...
  
   system

In most species in this subgenus a blue, pale blue or white globule, frequently refractory, can be found in the cytoplasm.

Species in this subgenus

Plasmodium ashfordi

Plasmodium ashfordi

Plasmodium ashfordi is a species of the genus Plasmodium subgenus Novyella.Like all species in this genus it has both vertebrate and insect hosts...

Plasmodium bertii

Plasmodium bertii

Plasmodium bertii is a parasite of the genus Plasmodium subgenus Novyella.Like all Plasmodium species P. bertii has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds.- Description :...

Plasmodium bambusicolai

Plasmodium bambusicolai

Plasmodium bambusicolai is a species of the genus Plasmodium subgenus Novyella.Like all species in this genus it has both vertebrate and insect hosts. The vertebrate host are birds....

Plasmodium columbae

Plasmodium corradettii

Plasmodium corradettii

Plasmodium corradettii is a parasite of the genus Plasmodium subgenus Novyella.Like all Plasmodium species P. corradettii has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....

Plasmodium dissanaikei

Plasmodium dissanaikei

Plasmodium dissanaikei is a parasite of the genus Plasmodium subgenus Giovannolaia.Like all Plasmodium species P. dissanaikei has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds.- Description :...

Plasmodium globularis

Plasmodium globularis

Plasmodium globularis is a parasite of the genus Plasmodium subgenus Novyella.Like all Plasmodium species P. globularis has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....

Plasmodium hexamerium

Plasmodium kempi

Plasmodium lucens

Plasmodium lucens

Plasmodium lucens is a parasite of the genus Plasmodium subgenus NovyellaLike all Plasmodium species P. lucens has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....

Plasmodium megaglobularis

Plasmodium megaglobularis

Plasmodium megaglobularis is a parasite of the genus Plasmodium subgenus Novyella.Like all Plasmodium species P. megaglobularis has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....

Plasmodium merulae

Plasmodium multivacuolaris

Plasmodium multivacuolaris

Plasmodium multivacuolaris is a parasite of the genus Plasmodium subgenus NovyellaLike all Plasmodium species P. multivacuolaris has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....

Plasmodium nucleophilum

Plasmodium parahexamerium

Plasmodium parahexamerium

Plasmodium parahexamerium is a parasite of the genus Plasmodium subgenus Novyella.Like all Plasmodium species P. parahexamerium has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....

Plasmodium paranucleophilum

Plasmodium paranucleophilum

Plasmodium paranucleophilum is a parasite of the genus Plasmodium.Like all Plasmodium species P. paranucleophilum has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....

Plasmodium papernai

Plasmodium papernai

Plasmodium papernai is a parasite of the genus Plasmodium subgenus Novyella.Like all Plasmodium species P. papernai has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....

Plasmodium rouxi

Plasmodium tenue

Plasmodium tenue

Plasmodium tenue is a parasite of the genus Plasmodium.This species is unusual in that the same specific name was used in two distinct papers published in the same year...

Plasmodium vaughani

Plasmodium vaughani

Plasmodium vaughani is a parasite of the genus Plasmodium subgenus Novyella.Like all Plasmodium species P. vaughani has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds.- Description :...