Flower Selection and the Dynamics of Lipid Reserve in Two Nectarivorous Butterflies

Ecology ◽  
1992 ◽  
Vol 73 (6) ◽  
pp. 2181-2191 ◽  
Author(s):  
Peter G. May
Keyword(s):  
Lipid Reserve ◽  
Flower Selection

Mobilization of storage lipid reserve and expression analysis of lipase and lipoxygenase genes in rice (Oryza sativa var. Pusa Basmati 1) bran during germination

2020 ◽  
Vol 180 ◽  
pp. 112538 ◽  
Author(s):  
Kshitija Sinha ◽  
Ranjeet Kaur ◽  
Nishu Singh ◽  
Sumandeep Kaur ◽  
Vikas Rishi ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Expression Analysis ◽  
Lipid Reserve ◽  
Storage Lipid

Afterripening and germination of seeds of American highbush cranberry (Viburnum trilobum)

1973 ◽  
Vol 51 (10) ◽  
pp. 1761-1764 ◽  
Author(s):  
Paul Fedec ◽  
R. H. Knowles
Keyword(s):  
Seed Germination ◽  
Gibberellic Acid ◽  
Prolonged Exposure ◽  
Inductive Effect ◽  
Polar Lipids ◽  
Lipid Degradation ◽  
Lipid Reserve ◽  
High Lipid ◽  
Alternating Temperature

Seed of the American highbush cranberry, Viburnum trilobum Marsh., kept at germinative conditions of 20 °C, required 328 days to reach 92% germination. Initially, about one-half the seed germinated within 120 days. After a 120-day lag, the balance germinated. Afterripening, with as little as one cycle of alternating temperature (1 week at 20 °C and 1 week at 2 °C) shortened the time to total germination by [Formula: see text] months. The inductive effect of afterripening was studied in relation to utilization of the high lipid reserve present in the endosperm. No appreciable changes in polar and non-polar lipids occurred during prolonged exposure to either afterripening or germinative conditions, indicating that afterripening is not associated with lipid degradation. Gibberellic acid (GA3) had little effect on seed germination but successfully overcame epicotyl dormancy of the seedling.

Isolation and Characterization of the Lipid Reserve Bodies, Spherosomes, from Layers of Wheat

1977 ◽  
Vol 138 (2) ◽  
pp. 138-149 ◽  
Author(s):  
Carole L. Jelsema ◽  
D. James Morré ◽  
Manfred Ruddat ◽  
Chris Turner
Keyword(s):  
Lipid Reserve ◽  
Isolation And Characterization

Optimal Foraging: On Flower Selection by Bees

1979 ◽  
Vol 114 (2) ◽  
pp. 179-196 ◽  
Author(s):  
Keith D. Waddington ◽  
Larry R. Holden
Keyword(s):  
Optimal Foraging ◽  
Flower Selection

Seasonal variations in biochemical composition during the reproductive cycle of the intertidal gastropod Thais lamellosa Gmelin (Gastropoda, Prosobranchia)

1974 ◽  
Vol 52 (3) ◽  
pp. 305-318 ◽  
Author(s):  
Philip Lambert ◽  
Paul A. Dehnel
Keyword(s):  
Digestive Gland ◽  
Reproductive Cycle ◽  
Seasonal Variations ◽  
Biochemical Composition ◽  
Feeding Activity ◽  
Lipid Reserve ◽  
Low Level ◽  
Biochemical Constituents ◽  
Histological Sections ◽  
Intertidal Gastropod

Seasonal variations in biochemical constituents of Thais lamellosa Gmelin in relation to the reproductive cycle were studied. Digestive gland, foot muscle, and gonad were analyzed for protein, glycogen, lipid, and ash for 1 year. Data on feeding and gamete maturation were obtained from histological sections of digestive gland and gonad. Major periods of feeding activity occurred in April and August. The spawning peak was in March and gametogenesis began in July. Maximum glycogen levels coincided with major feeding periods but reserves in the digestive gland were mainly lipid. This lipid reserve was used during the winter. Glycogen was at a relatively low level in all tissues and appeared to be used by the developing gonad. The foot muscle stored neither lipid nor glycogen to any appreciable extern.During winter the digestive gland index decreased as reserves were used. The ovary index held constant from October to February then dropped sharply with spawning. Animals kept for the same period under artificial summer conditions showed no decrease in the digestive gland index, but a decrease in the ovary index. Few oogonia reached maturity and many were resorbed. Starved animals used more protein from the ovary than fed animals.

scholarly journals Is flower selection influenced by chemical imprinting to larval food provisions in the generalist bee Osmia bicornis (Megachilidae)?

Apidologie ◽  
2012 ◽  
Vol 43 (6) ◽  
pp. 698-714 ◽  
Author(s):  
Heidi E. M. Dobson ◽  
Manfred Ayasse ◽  
Katherine A. O’Neal ◽  
Jesse A. Jacka
Keyword(s):  
Larval Food ◽  
Osmia Bicornis ◽  
Flower Selection

On farm heliconia cut flower selection in Pernambuco – Brazil

2015 ◽  
pp. 455-462 ◽  
Author(s):  
V. Loges ◽  
M.C.F. Texeira ◽  
S.S.L. Silva ◽  
P.G.P. Lago ◽  
S.Á.C.G. da Silva ◽  
...  
Keyword(s):  
Cut Flower ◽  
On Farm ◽  
Flower Selection

Alfalfa Flower Aroma and Flower Selection by Honey Bees 1

Crop Science ◽  
1970 ◽  
Vol 10 (1) ◽  
pp. 66-68 ◽  
Author(s):  
G. M. Loper ◽  
G. D. Waller
Keyword(s):  
Honey Bees ◽  
Flower Selection

Ultrastructure of the infection of spruce budworm larvae by the fungus Entomophaga aulicae

1987 ◽  
Vol 65 (8) ◽  
pp. 1694-1706 ◽  
Author(s):  
Faye Murrin ◽  
Richard A. Nolan
Keyword(s):  
Spruce Budworm ◽  
Body Cavity ◽  
Protoplast Formation ◽  
Storage Material ◽  
Larval Body ◽  
Lipid Reserve ◽  
Transmission Electron ◽  
Hyphal Bodies ◽  
Infection Hypha

The infection of spruce budworm larvae by the fungus Entomophaga aulicae was studied by light, scanning, and transmission electron microscopy. Exposure of the larvae to conidia resulted in the death of the host and the production of a crop of infective conidia within 5 to 6 days. Germinating conidia produced appressoria prior to penetration of the larval cuticle. Nuclei in appressoria were larger and contained less heavily condensed chromatin than nuclei in other stages of fungal development. Attachment and infection were characterized by distinct changes in the wall layers of the fungus. An infection hypha grew through the insect tissues directly into the hemocoel where discontinuities were observed in the wall layers at the apex of the infection hypha. These discontinuities are probably associated with protoplast formation in vivo. Protoplasts with polysaccharide and lipid storage material were present in the hemolymph of larvae 3 days after exposure to conidia. Thick-walled hyphal bodies with abundant lipid reserve filled the larval body cavity by the 5th day. Hyphal bodies germinated to produce unbranched, aseptate conidiophores which emerged through the host cuticle prior to conidiogenesis.

Lipid Reserve Dynamics and Magnification of Persistent Organic Pollutants in Spawning Sockeye Salmon (Oncorhynchus nerka) from the Fraser River, British Columbia

2007 ◽  
Vol 41 (9) ◽  
pp. 3083-3089 ◽  
Author(s):  
Barry C. Kelly ◽  
Samantha L. Gray ◽  
Michael G. Ikonomou ◽  
J. Steve Macdonald ◽  
Stelvio M. Bandiera ◽  
...  
Keyword(s):  
British Columbia ◽  
Organic Pollutants ◽  
Persistent Organic Pollutants ◽  
Sockeye Salmon ◽  
Oncorhynchus Nerka ◽  
Fraser River ◽  
Lipid Reserve
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