Sexually dimorphic gall structures correspond to differential phytohormone contents in male and female wasp larvae

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F09%3A00010229" target="_blank" >RIV/61989592:15310/09:00010229 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389030:_____/09:00337104

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Sexually dimorphic gall structures correspond to differential phytohormone contents in male and female wasp larvae

Popis výsledku v původním jazyce

Sexually dimorphic galls are rare among gall-inducing insects and the reason for their occurrence is unknown. The pteromalid wasp Trichilogaster acaciaelongifoliae, which induces galls on Acacia longifolia, is one such species. The anatomical and physiological attributes of male and female galls are examined and compared. Histological preparations are used to characterize anatomical differences between male and female gall chambers. Concentrations of auxin and cytokinin in normal buds, galled tissues, and larvae of both sexes are measured. Tissues from female chambers induce stronger cytokinin-like bioactivity than tissues from male chambers. Female larvae have considerably higher concentrations of cytokinins than male larvae; higher auxin-like bioactivity than in normal or galled plant tissues; and almost twice concentration of auxin than male larvae. These findings suggest that differing levels of phytohormones are involved in development of sexual dimorphism of gall structures.

Název v anglickém jazyce

Sexually dimorphic gall structures correspond to differential phytohormone contents in male and female wasp larvae

Popis výsledku anglicky

Sexually dimorphic galls are rare among gall-inducing insects and the reason for their occurrence is unknown. The pteromalid wasp Trichilogaster acaciaelongifoliae, which induces galls on Acacia longifolia, is one such species. The anatomical and physiological attributes of male and female galls are examined and compared. Histological preparations are used to characterize anatomical differences between male and female gall chambers. Concentrations of auxin and cytokinin in normal buds, galled tissues, and larvae of both sexes are measured. Tissues from female chambers induce stronger cytokinin-like bioactivity than tissues from male chambers. Female larvae have considerably higher concentrations of cytokinins than male larvae; higher auxin-like bioactivity than in normal or galled plant tissues; and almost twice concentration of auxin than male larvae. These findings suggest that differing levels of phytohormones are involved in development of sexual dimorphism of gall structures.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physiological Entomology

ISSN

0307-6962

e-ISSN

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Svazek periodika

34

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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