β-glucuronidase in the alimentary canal of herbivorous and carnivorous anuran tadpoles and adults

Varute, A. T.

doi:10.1016/0010-406x(70)90489-5

Comparative Biochemistry and Physiology

1970

DOI: 10.1016/0010-406x(70)90489-5

|View full text |Cite

β-glucuronidase in the alimentary canal of herbivorous and carnivorous anuran tadpoles and adults

A. T. Varute¹

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1971

1981

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 10 publications

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Histochemical study of the amphibian digestive tract during normal and thyroxine‐induced metamorphosis. II. Acid phosphatase

1981

View full text Add to dashboard Cite

This histochemical study comprises a comprehensive overview of acid phosphatase distribution along the entire length of the digestive tract from esophagus through large intestine of growing and metamorphosing larvae and mature frogs of a single anuran species, R a m pipiens. The main site of enzyme localization throughout the length of the tube is the supranuclear area of the mucosal epithelium. However, activity of the enzyme varies markedly, not only in different locations (e.g., weak in the esophagus, strong in the small intestine), but also in different stages of larval development. During limb bud-early metamorphic stages (I-XX), activity is localized only in epithelial cells (supranuclear zone and scattered basal foci) and in glands of the stomach. Activity in these sites increases when remodeling of the digestive tract begins in the latter stages of this period. By mid-metamorphosis (XXI-XXII), shortening of the tract has become maximal, and acid phosphatase-positive epithelial cells have degenerated and sloughed into the lumen. In contrast, enzyme activity appears (albeit transitorily) in a new location, namely, in connective tissue thickening along the length of the tract. A similar histochemical picture can be induced precociously by thyroxine treatment. By the end of metamorphosis (XXIII-XXV), activity again appears in mucosal epithelium, but in newly differentiated adulttype cells as well as in gastric and initially-forming esophageal glands (the only two types of multicellular glands in the digestive tract). In adult frogs, activity remains in these sites and in scattered points (probably phagocytes) in the connective tissue; however, activity is generally weaker than in early-stage larvae.

show abstract

Histochemical study of the amphibian digestive tract during normal and thyroxine‐induced metamorphosis. II. Acid phosphatase

1981

View full text Add to dashboard Cite

show abstract

Heat-labile and heat-stable β-glucuronidases in embryogenesis, larval growth, and metamorphosis of the blowfly, Crysomyia rufiferacis

Varute

Sawant

1971

Insect Biochemistry

View full text Add to dashboard Cite

RNA-bound β-glucuronidase in embryogenesis, larval growth, and metamorphosis of the blowfly, Crysomyia rufiferacis

Varute

Sawant

1972

Insect Biochemistry

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

β-glucuronidase in the alimentary canal of herbivorous and carnivorous anuran tadpoles and adults

Cited by 10 publications

References 17 publications

Histochemical study of the amphibian digestive tract during normal and thyroxine‐induced metamorphosis. II. Acid phosphatase

Histochemical study of the amphibian digestive tract during normal and thyroxine‐induced metamorphosis. II. Acid phosphatase

Heat-labile and heat-stable β-glucuronidases in embryogenesis, larval growth, and metamorphosis of the blowfly, Crysomyia rufiferacis

RNA-bound β-glucuronidase in embryogenesis, larval growth, and metamorphosis of the blowfly, Crysomyia rufiferacis

Contact Info

Product

Resources

About