Results 61 to 70 of about 429 (149)

First record of leucism in the polychromatic Amazon tree boa, Corallus hortulana (Serpentes, Boidae) of South America

, 2022
Snakes have a wide variety of color patterns that can be related to specific ecological and physiological functions. However, genetic mutations can lead to the appearance of anomalous color patterns, which can directly interfere with the fitness of ...
Benoît FIOT (12795000), Audrey DAHAN (12794997), Igor Yuri FERNANDES (12794994)   +2 more
core   +1 more source

First record of leucism in spotted eagle ray, Aetobatus narinari (Elasmobranchii, Myliobatiformes, Aetobatidae) [PDF]

Acta Ichthyologica et Piscatoria
This paper reports the first record of leucism in the spotted eagle ray, Aetobatus narinari (Euphrasen, 1790). The specimen was captured on the coast of Seybaplaya, Campeche, on 15 August 2025, using a 20 cm mesh-size gillnet.
Armando T. Wakida-Kusunoki, Ivan Oribe-Perez, Vicente Anislado-Tolentino, Luis Fernando Del Moral-Flores, Adrián Enrique Chi Duran   +4 more
doaj   +3 more sources

Genetic Drivers of Plant Root Colonisation by the Biocontrol Agent Pseudomonas protegens Pf‐5

Environmental Microbiology Reports, Volume 17, Issue 4, August 2025.
We highlight key traits that contribute to competitive root colonisation by Pseudomonas protegens Pf‐5, a biocontrol agent used to promote plant growth. These findings can help guide the design of microbial inoculants with improved capacity for competitive root colonisation. ABSTRACT Plant growth‐promoting bacteria can confer a range of health benefits
Timothy M. Ghaly, Belinda K. Fabian, Silas H. W. Vick, Christie Foster, Amy J. Asher, Karl A. Hassan, Liam D. H. Elbourne, Ian T. Paulsen, Sasha G. Tetu   +8 more
wiley   +1 more source

Anomalous colour in Neotropical mammals: a review with new records for Didelphis sp. (Didelphidae, Didelphimorphia) and Arctocephalus australis (Otariidae, Carnivora)

Brazilian Journal of Biology
Anomalous colourations occur in many tropical vertebrates. However, they are considered rare in wild populations, with very few records for the majority of animal taxa. We report two new cases of anomalous colouration in mammals.
MSL. Abreu, R. Machado, F. Barbieri, NS. Freitas, LR. Oliveira   +4 more
doaj   +1 more source

The Phenomenon of Piebaldism in Sharks: A Review of Global Sightings and Patterns

Ecology and Evolution, Volume 15, Issue 7, July 2025.
Chromatic disorders like piebaldism—a rare form of leucism causing partial pigment loss—have been documented in 25 wild shark cases across 17 species and 11 families, with varying anatomical distribution. This study compiles published and unpublished records to better understand the taxonomic and geographical spread of piebaldism and its potential ...
Darren A. Whitehead, Andrea Parmegiani, Jacopo Gobbato, Mohamed Mizyan, Arzucan Askin, Sara Scroglieri, Paolo Galli, Davide Seveso, Simone Montano, Joel H. Gayford   +9 more
wiley   +1 more source

Isabelline coloration: a heretofore unrecognized chromatic aberration in bighorn sheep

California Fish and Wildlife Journal
Coloration is among the characteristics noted first by observers, and color has a strong influence on how animals are perceived. Abnormal coloration has been reported in a variety of taxa, but less frequently among mammals than other classes of ...
Vernon C. Bleich
doaj   +1 more source

Leucism inTityus pusillus(Scorpiones: Buthidae): Report of a rare event in scorpions

Journal of Arachnology, 2016
Abstract Leucism is a congenital disorder in which the individual is born with partial hypopigmentation. It is quite common in vertebrates, but rare in invertebrates, especially in arachnids like scorpions. This paper presents the first record of this congenital disorder to be observed in the order Scorpiones.
Lira, A F A, Pordeus, L M, Albuquerque, Cleide Maria Ribeiro de.   +2 more
openaire   +1 more source

Commodity risk assessment of Acer plants from Ukraine

EFSA Journal, Volume 23, Issue 7, July 2025.
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ’High‐risk plants, plant products and other objects'. This Scientific Opinion covers plant health risks posed by Acer plants (A. griseum, A.
EFSA Panel on Plant Health (PLH), Antonio Vicent Civera, Paula Baptista, Anna Berlin, Elisavet Chatzivassiliou, Jaime Cubero, Nik Cunniffe, Eduardo de la Peña, Nicolas Desneux, Francesco Di Serio, Anna Filipiak, Beata Hasiów‐Jaroszewska, Hervé Jactel, Blanca B. Landa, Lara Maistrello, David Makowski, Panagiotis Milonas, Nikos T. Papadopoulos, Roel Potting, Hanna Susi, Dirk Jan van Der Gaag, Andrea Battisti, Claude Bragard, Hugo Mas, Daniel Rigling, Massimo Faccoli, Alžběta Mikulová, Fabio Stergulc, Eugen Christoph, Olaf Mosbach‐Schulz, Franz Streissl, Paolo Gonthier   +31 more
wiley   +1 more source

Model‐Guided Rational Construction of Escherichia coli Synthetic Consortia for Enhanced 2‐Methylbutyric Acid Production

Advanced Science, Volume 12, Issue 22, June 12, 2025.
We developed a citramalate‐derived pathway for 2‐methylbutyric acid production in E. coli mono‐culture and consortia. The optimized consortium, using 2‐keto‐3‐methylvalerate as a node, achieved 1817.03 ± 103.73 mg L−1 2‐methylbutyric acid, a 28‐fold increase from the initial strain, with a yield of 0.091 g/g glucose.
Yu Liu, Boyuan Xue, Shaojie Wang, Haijia Su   +3 more
wiley   +1 more source

First record of leucism for Atractus reticulatus (Serpentes: Dipsadidae) [PDF]

Brazilian Journal of Biology, 2017
O. M. Entiauspe-Neto, A. D. Abegg, F. M. Quintela, C. Mario-da-Rosa, L. Malta-Borges, D. Loebmann   +5 more
openaire   +6 more sources