Results 171 to 180 of about 630,445 (336)

Somatic Embryogenesis in Pigeonpea CAJANUS CAJAN L. [PDF]

, 1996
Somatic embryogenesis was obtained from inlmature leaflet segments, root discs, epicotyl and hypocotyl segments, as well as from mature cotyledons or MS medium supplemented with different concentrations of NAA and BAP.
Sastri, D C, Moss, J P, Reena, M J T, Mallikarjuna, N   +3 more
core  

Comparative Molecular Insights into Developmental and Behavioral Toxicity Induced by Octocrylene and Ethylhexyl Salicylate Exposure on Zebrafish

Integrative Zoology, EarlyView.
This study compared the ecological toxicity of organic ultraviolet filters, octocrylene (OC) and ethylhexyl salicylate (EHS), on zebrafish embryos and larvae. EHS exhibited higher acute toxicity, causing increased mortality, hypoactive behavior at 50 mg/L, and disruptions in lipid homeostasis, while OC primarily affected hypoxia response and ...
Xiaoyang Lu, Li Sun, Jiao Chen, Jing Wang, Miao Guan, Shixia Xu   +5 more
wiley   +1 more source

Floral biology and propagation of blue-flowered Conospermum spp [PDF]

, 2003
Blue-flowered Conospermum are endemic to Western Australia, and show great potential as cut flowers. Propagation from cuttings or seed proved difficult, and root initiation in vitro is problematic. This thesis examines the floral biology of the species
Stone, Lynley M.
core  

Hox Gene Variation Drives Morphological Specialization of Humpback Grouper Cromileptes altivelis

Integrative Zoology, EarlyView.
Cromileptes altivelis exhibits a distinctive “sunken head and humpback” morphology, formed through cranial remodeling. Genetic analyses identified unique amino acid variants in Hoxa7a and Hoxa10b, with functional tests confirming their role in enhancing osteoblast activity and driving cranial remodeling.
Xiaoying Cao, Zhaowei Zhong, Lisheng Wu, Quanyin Liu, Shaoxiong Ding   +4 more
wiley   +1 more source

Nested Selves: Self‐Organization and Shared Markov Blankets in Prenatal Development in Humans

Topics in Cognitive Science, EarlyView., 2023
Abstract The immune system is a central component of organismic function in humans. This paper addresses self‐organization of biological systems in relation to—and nested within—other biological systems in pregnancy. Pregnancy constitutes a fundamental state for human embodiment and a key step in the evolution and conservation of our species. While not
Anna Ciaunica, Michael Levin, Fernando E. Rosas, Karl Friston   +3 more
wiley   +1 more source

More of the Same Makes a Difference: Comparative Anatomy and Molecular Makeup of Tenrec and Hedgehog Intestines

Integrative Zoology, EarlyView.
Tenrecs and hedgehogs have gastrointestinal tracts of comparable morphology, yet with marked differences in length. Among mammals, intestinal length is correlated with diet; however, these species share a common trophic niche. The length differences are accounted for by an expansion of the small intestine in the European hedgehog.
María J. Duque‐Correa, Antoine Fages, Eva Dervas, Athanasia C. Tzika, Maria J. Minguer‐Balderas, Charlotte E. T. Huyghe, Walter Salzburger, Patrick Tschopp, Marcus Clauss   +8 more
wiley   +1 more source

A Spotlight on Yolk‐sac Tumors: Molecular Pathology, Current Diagnostics, and Novel Therapeutics

Andrology, EarlyView.
ABSTRACT Background Yolk‐sac tumors are an aggressive subtype of testicular cancer that significantly contribute to disease progression and therapy resistance, especially in adults. While testicular cancer generally has high cure rates with cisplatin‐based treatment, adult yolk‐sac tumors often appear as components of mixed tumors with poor response to
Evangelos Prokakis, Lisa Schneider, Felix Bremmer, Daniel Nettersheim   +3 more
wiley   +1 more source

LEC2 induces somatic cell reprogramming through epigenetic activation of plant cell totipotency regulators

Nature Communications
Many plant species can develop embryos from somatic cells without fertilization. During this process, known as somatic embryogenesis, changes in the DNA methylation patterns are characteristic of reprogramming somatic cells into an embryogenic state ...
Jing Peng, Qi Zhang, Li Ping Tang, Biao Jie Xu, Thomas Laux, Xian Sheng Zhang, Ying Hua Su   +6 more
doaj   +1 more source

Spectrum of Congenital Malformations in Sex Chromosome Tetrasomies and Pentasomies: A Systematic Review

Andrology, EarlyView.
ABSTRACT Sex chromosome aneuploidies represent a heterogeneous group of chromosomal conditions, in which phenotypic complexity generally increases with the number of supernumerary sex chromosomes. While Turner syndrome and sex chromosome trisomies are relatively well characterized, less is known about congenital malformations in sex chromosome ...
Anna Colding, Jannie Traberg, Inger Lily Hjuler Dorf, Anne Skakkebæk   +3 more
wiley   +1 more source

The Embryonic Development of the Cotylean Polyclad Phrikoceros jannetae

Acta Zoologica, EarlyView.
ABSTRACT Polyclads exhibit distinct developmental modes ranging from direct to indirect development, with several transitional stages also recognised. The existence of an indirect developmental mode in polyclads with a planktonic life history stage in the form of a free‐swimming larva is unique among all free‐living flatworms and makes polyclads a ...
Mehrez Gammoudi, Bernhard Egger, Isabel L. Dittmann, Verónica N. Bulnes, Pavel Tomancak, Abdel Halim Harrath, Johannes Girstmair   +6 more
wiley   +1 more source