Structural, biochemical, and physiological characterization of photosynthesis in leaf-derived cup-shaped galls on Litsea acuminata

CCUR > College of Environmental Planning & Bioresources > College of Agriculture > Department of Horticulture > journal articles > Item 987654321/30768

Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/30768

Title:	Structural, biochemical, and physiological characterization of photosynthesis in leaf-derived cup-shaped galls on Litsea acuminata
Authors:	Huang, Meng-Yuan Huang, Wen-Dar Chou, Hsueh-Mei Chen, Chang-Chang Chen, Pei-Ju Chang, Yung-Ta Yang, Chi-Ming
Contributors:	Dept Hort & Biotechnol
Keywords:	Cecidomyiidae Gall Litsea acuminate Photosynthesis Chlorophyll fluorescence Sink
Date:	2015-02
Issue Date:	2015-10-30 14:23:43 (UTC+8)
Abstract:	Background: The source and sink relationships between insect-induced galls and host plant leaves are interesting. In this research, we collected cup-like galls induced by Bruggmanniella sp. (Diptera: Cecidomyiidae) on host leaves of Litsea acuminata and assessed them to investigate source-sink relationships between galls and host leaves. We characterized several of their photosynthetic characteristics including chlorophyll fluorescence (Fv/Fm), stomatal conductance, and photosynthetic capacity, biochemical components such as total soluble sugar, starches, free amino acids, and soluble proteins. The structural analyses were performed under confocal, light, and scanning electron microscopies. Results: Compared with host leaves, galls exhibited slightly lower chlorophyll fluorescence; however, stomatal conductance and photosynthetic capacity were not detected at all. Galls accumulated higher total soluble sugars and free amino acids but less soluble proteins than host leaves. No stomata was observed on exterior or interior gall surfaces under light or scanning electron microscopy, but their inner surfaces were covered with fungal hyphae. Confocal imagery showed a gradient of chloroplasts distribution between gall outer and inner surfaces. Conclusions: Our results strongly suggest that leaf-derived cecidomyiid galls are a type of chlorophyll-deficient non-leaf green tissue and consists on a novel sink in L. acuminate.
Relation:	BMC PLANT BIOLOGY 卷: 15 文獻號碼: 61
Appears in Collections:	[Department of Horticulture] journal articles

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	287	View/Open

View Licence

Loading...