Phycomycetes (Phytophthora spp. nov. and Pythium sp. nov.) associated with degrading mangrove (Rhizophora mangle) leaves

1975 ◽  
Vol 53 (24) ◽  
pp. 2908-2922 ◽  
Author(s):  
Jack W. Fell ◽  
I. M. Master
Keyword(s):  
New Species ◽  
Leaf Litter ◽  
Rhizophora Mangle ◽  
Marine Waters ◽  
Red Mangrove ◽  
Phytophthora Spp ◽  
Litter Decay ◽  
Coastal Marine ◽  
Litter Degradation ◽  
The Tropics

Fungi of the genus Phytophthora were found to be associated with the initial stages of leaf litter decay of Rhizophora mangle L. and other Rhizophora species in estuarine and coastal marine waters. Phytophthora appears to be an important component of red-mangrove litter degradation systems throughout the tropics, which includes the Atlantic, Pacific, and Indian Oceans. The distributions of Phytophthora vesicula Anastasiou et Churchland and four new species of Phytophthora are discussed, as well as their occurrence in other tropical marine allochthonous spermatophytic leaf litter. The descriptions of the new species and varieties, Phytophthora bahamensis, P. epistomium, P. mycoparasitica, P. spinosa var. spinosa, and P. spinosa var. lobata, are presented.Pythium was rarely observed in the mangrove litter system, although one species, Pythium grandisporangium sp.nov., is described.

scholarly journals Apocyclops cmfri sp. nov. (Cyclopoda : Cyclopoida : Cyclopidae), a new copepod species from marine waters of Karwar, Karnataka, India

2017 ◽  
Vol 64 (2) ◽  
Author(s):  
Jayasree Loka ◽  
K. K. Philipose ◽  
S. M. Sonali ◽  
B. Santhosh ◽  
F. Muhammed Anzeer ◽  
...  
Keyword(s):  
New Species ◽  
Gene Sequencing ◽  
Valid Species ◽  
Indian Species ◽  
Medial Part ◽  
Marine Waters ◽  
Significant Divergence ◽  
The Tropics ◽  
Caudal Rami ◽  
A New Species

A new species of Apocyclops Lindberg (Cyclopoda: Cyclopoida: Cyclopidae) is described based on specimens collected from marine waters of Karwar, Karnataka, India. At present, there are 11 valid and accepted species excluding one extinct species (fossil) in this genus which are widely distributed in fresh and brackishwater areas in the tropics and subtropics. Five valid species of Apocyclops are reported from the Asian region, including two species from India. The new species is closer to the previously reported Indian species, A. royi (Lindberg) and A. dengizicus dengizicus (Lepeshkin). Apocyclops cmfri sp. nov. differs from these in the size of caudal rami, in the characteristic shape of disto-medial part of coxa and basis of first to fourth pleopods (P1-P4) and in the presence of a single broad spinous expansion with a pointed tip in between exopod and endopod in basis of P1 to P4. Only one terminal spine is present in the second segment of endopod of P1. In P2 to P4, both exopod and endopod terminate in a spine and a seta of almost equal size. Maxillule highly dentate and maxilla basis form a large dentate claw with inner serration. All these characters form distinct identification features of the new species in comparison with the 12 accepted species under the genus. A key to all the species of the genus including the newly described species is proposed here. Molecular identification of the new species was carried out by mitochondrial cytochrome c oxidase 1 (CO1) gene sequencing and the sequence was submitted to NCBI, GenBank. Genetic differentiation and divergence between A. cmfri sp. nov. and species belonging to other closely related genera; Thermocyclops, Mesocyclops and Eucyclops were compared using CO1 gene sequences. The new species belonging to Apocyclops showed significant divergence from Apocyclops borneoensis with K2P value of 10.2% and from species under the genera Mesocyclops, Thermocyclops and Eucyclops with K2P values of 26.6, 27.5and 34.9% respectively.

A new species of the subgenus Scheloribates (Topobates) (Acari: Oribatida: Scheloribatidae) from Panama

2020 ◽  
Vol 29 (2) ◽  
pp. 278-283
Author(s):  
S.G. Ermilov
Keyword(s):  
New Species ◽  
Body Size ◽  
Leaf Litter ◽  
Related Species ◽  
Large Body ◽  
Oribatid Mite ◽  
Neotropical Region ◽  
Large Body Size ◽  
First Time ◽  
A New Species

The oribatid mite subgenus Scheloribates (Topobates) Grandjean, 1958, is recorded from the Neotropical region for the first time. A new species of this subgenus is described from the leaf litter collected in Cayo Agua Island, Panama. Scheloribates (Topobates) panamaensis sp. nov. differs from its related species by the very large body size and presence of a strong ventrodistal process on the leg femora II–IV.

Three new species of Eurystethus from Brazil (Hemiptera: Heteroptera: Pentatomidae)

Zootaxa ◽  
2021 ◽  
Vol 4958 (1) ◽  
pp. 585-594
Author(s):  
ANDRÉ OLIVEIRA CORREIA ◽  
JOSÉ ANTÔNIO MARIN FERNANDES ◽  
LUIZ ALEXANDRE CAMPOS
Keyword(s):  
New Species ◽  
Neotropical Region ◽  
Stink Bugs ◽  
Distribution Map ◽  
True Bugs ◽  
Distributed Groups ◽  
Heteroptera Pentatomidae ◽  
Three New Species ◽  
The Tropics

The Heteroptera (true bugs) and its fourth-largest family Pentatomidae (stink bugs) are worldwide distributed groups with higher diversity in the tropics. The pentatomid subfamily Discocephalinae is almost restricted to the Neotropical Region, and it is divided into the tribes Discocephalini and Ochlerini. Eurystethus Mayr, 1864 is placed within Discocephalini and comprises 18 species, 16 out of them classified into two subgenera. Here we describe Eurystethus jo sp. nov., Eurystethus multipunctatus sp. nov., and Eurystethus rufodorsatus sp. nov., all occurring in Brazil, compare them to other species and provide a distribution map. 

Fungi Associated with the Roots of Red Mangrove, Rhizophora mangle

Mycologia ◽  
1973 ◽  
Vol 65 (4) ◽  
pp. 894 ◽  
Author(s):  
Benny K. H. Lee ◽  
Gladys E. Baker
Keyword(s):  
Rhizophora Mangle ◽  
Red Mangrove

scholarly journals An overview of recent taxonomic studies on Euphorbiaceae s.l. in Brazil

Rodriguésia ◽  
2012 ◽  
Vol 63 (1) ◽  
pp. 227-242 ◽  
Author(s):  
Ricardo de S. Secco ◽  
Inês Cordeiro ◽  
Luci de Senna-Vale ◽  
Margareth F. de Sales ◽  
Letícia Ribes de Lima ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Sensu Stricto ◽  
Classification Systems ◽  
Taxonomic Position ◽  
Diverse Families ◽  
Taxonomic Studies ◽  
The Tropics

The Euphorbiaceae sensu lato are distributed mainly in the tropics, in various types of vegetation and habitats, being one of the largest, most complex and diverse families of angiosperms. It has recently been divided into four families, according to classification systems based on molecular phylogeny: Euphorbiaceae sensu stricto, Phyllanthaceae, Putranjivaceae, and Picrodendraceae. There is a proposition to establish Peraceae still under discussion. There were also changes in the taxonomic position of genera widely distributed in the Brazilian territory, such as Amanoa, Drypetes, Pera, Phyllanthus, Podocalyx, Pogonophora, and Richeria, among others. In addition, new species have been proposed and the limits of taxa distribution are expanding in Brazil. Thus, the authors provide an overview of recent studies and advances in the taxonomy of Euphorbiaceae s.l. in the Northern, Northeastern, Southeastern and Southern regions of Brazil, concentrating on review works and regional floras, as well as the changes that resulted in setting a new taxonomic family.

scholarly journals Comparative Studies on the Effect of Adjuvants with Urea to Reduce the Overwintering Inoculum of Venturia inaequalis

Plant Disease ◽  
2019 ◽  
Vol 103 (3) ◽  
pp. 531-537 ◽  
Author(s):  
Janna Beckerman ◽  
Chelsi Abbott
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Comparative Studies ◽  
Venturia Inaequalis ◽  
Apple Scab ◽  
Organic Surfactant ◽  
Comparable Performance ◽  
Improved Sanitation ◽  
Litter Degradation ◽  
Ascospore Production

A 2-year study on the use of organic and conventional adjuvants alone, or mixed with urea, was conducted for management of overwintering inoculum of the apple scab pathogen, Venturia inaequalis. Select adjuvants (LI 700, Bond Max, Latron B-1956, and Organic Wet Betty [OWB]) have the potential to hasten urea-driven leaf litter decomposition and reduce V. inaequalis overwintering inoculum comparable to urea, and that one organic surfactant could perform the same level of leaf decomposition as urea. Combinations of adjuvants with urea significantly improved leaf litter degradation compared with urea alone, concomitant with reducing the number of pseudothecia present and pseudothecium fertility. We demonstrate that the combination of urea with Bond Max or OWB reduced pseudothecia fertility and ascospore production to less than 5% in the remaining pseudothecia, a significantly greater reduction than with urea alone. These results suggest that conventional growers combine urea with Bond Max or OWB to more effectively reduce overwintering inoculum, and that the adjuvant OWB can provide organic growers with comparable performance to urea used in conventional orchards for improved sanitation.

scholarly journals Description of three new species of Aposphragisma Thoma, 2014 (Araneae: Oonopidae) from Sumatra, Indonesia

ZooKeys ◽  
2018 ◽  
Vol 797 ◽  
pp. 71-85 ◽  
Author(s):  
Riko Fardiansah ◽  
Nadine Dupérré ◽  
Rahayu Widyastuti ◽  
Anton Potapov ◽  
Stefan Scheu ◽  
...  
Keyword(s):  
New Species ◽  
Leaf Litter ◽  
Male And Female ◽  
The Family ◽  
Three New Species

Three species from the family Oonopidae are newly described from leaf litter habitats in Sumatra, Indonesia based on male and female morphology. All three species belong to the genusAposphragismaThoma, 2014:Aposphragismaglobosumsp. n.,Aposphragismajambisp. n., andAposphragismasumatrasp. n.

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