Pigment composition and location in honey locust (Gleditsia triacanthos) seeds before and after desiccation

Models of ocean colour rely on information about phytoplankton absorption, which varies according to community composition and photoacclimation. Here we show that pigment packaging, which is strongly determined by the size structure of local algal populations, represents a dominant factor in the Estuary and Gulf of St. Lawrence, accounting for ~50%–80% of the reduction in phytoplankton absorption at 440 nm during the spring bloom periods and for 24%–48% before and after the blooms. This is consistent with the importance of diatoms in this environment. Comparison between three methods of estimating packaging gave average values within less than 20% of each other during the blooms. Changes in pigment composition, which also affect phytoplankton absorption, were more important outside bloom periods (particularly in the Gulf), although this influence was relatively modest (11%–13%). This was accompanied by an increase in photoprotective pigments and an absorption peak in the ultraviolet range (~330 nm). Regional variations in phytoplankton absorption reflected bloom conditions, whereas detrital particulate material was highest in the upstream Saguenay region (often more than 60% of the absorption of total particulate material at 440 nm (ap(440))) and was at least 20%–30% elsewhere. This information is a first step towards the development of regional models of ocean colour.

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The Riddle of the Voodoo Tree: An Exercise in Ecological Thinking, Using the Example of the Honey Locust (Gleditsia triacanthos)

The American Biology Teacher ◽

10.1525/abt.2019.81.3.146 ◽

2019 ◽

Vol 81 (3) ◽

pp. 146-150

Author(s):

Marcel Robischon

Keyword(s):

Learning Experiences ◽

Gleditsia Triacanthos ◽

Sensory Awareness ◽

Ornamental Tree ◽

Object Based ◽

Honey Locust ◽

Observational Skills ◽

Large Animals ◽

Ecological Thinking

Object-based learning is an approach that aims to foster observational skills and sensory awareness. Paradoxical plant objects that do not lend themselves to all-too-easy explanations and interpretations can be used to practice the search for ecological explanations and the formation of evolutionary hypotheses. They can be the basis of particularly fruitful and rewarding learning experiences. Gleditsia triacanthos, the honey locust, is a commonly planted ornamental tree. It exhibits striking structures of defense against – and fruit that point to a mutualism with – large animals. These structures, possibly developed in coevolution with Pleistocene faunas, invite a discussion of the complex, neither fully antagonistic nor fully mutualistic, relationships between plants and animals.

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Effect of partially replacing fish meal with honey locust seed (Gleditsia triacanthos) on growth, feed utilisation and body composition of mirror carp,Cyprinus carpio, fingerlings

Journal of Applied Animal Research ◽

10.1080/09712119.2011.607761 ◽

2012 ◽

Vol 40 (1) ◽

pp. 8-12 ◽

Cited By ~ 1

Author(s):

Hakan Murat Buyukcapar ◽

Fulya Gunlemez ◽

Adem Kamalak

Keyword(s):

Body Composition ◽

Cyprinus Carpio ◽

Fish Meal ◽

Gleditsia Triacanthos ◽

Mirror Carp ◽

Carp Cyprinus Carpio ◽

Feed Utilisation ◽

Honey Locust

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Megabruchidius dorsalis (Fåhreus, 1839) (Coleoptera: Chrysomelidae: Bruchinae) is a new adventive species in the Kharkiv Region (Ukraine)

The Kharkov Entomological Society Gazette ◽

10.36016/khesg-2018-26-2-3 ◽

2018 ◽

Vol 26 (2) ◽

pp. 15-18 ◽

Cited By ~ 1

Author(s):

I. P. Lezhenina ◽

Yu. V. Vasylieva

Keyword(s):

Gleditsia Triacanthos ◽

Adventive Species ◽

Honey Locust ◽

Seed Beetles

Larvae, pupae and imagoes of Megabruchidius dorsalis have been found in October 2018 as a result of examination of the beans of the honey locust (Gleditsia triacanthos) in the arboretum of the Dokuchaiev Kharkiv National Agrarian University. The seed beetles colonized in 52% of the beans harvested in the current year and in 81% of the beans harvested in the previous years.

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Serum and Bile Bilirubin Pigments in the Differential Diagnosis of Crigler-Najjar Disease

PEDIATRICS ◽

10.1542/peds.94.4.553 ◽

1994 ◽

Vol 94 (4) ◽

pp. 553-556 ◽

Cited By ~ 2

Author(s):

FIRMINO F. RUBALTELLI ◽

ANTONELLA NOVELLO ◽

LUCIA ZANCAN ◽

MARIA TERESA VILEI ◽

MAURIZIO MURACA

Keyword(s):

High Serum ◽

Unconjugated Bilirubin ◽

Bile Pigment ◽

Bile Pigments ◽

Pigment Composition ◽

Bilirubin Concentration ◽

Before And After ◽

Alkaline Methanolysis ◽

Bile Samples

Objective. To differentiate between Crigler-Najjar (CN) disease types 1 and 2. Design. The patterns of serum bilirubins, bile pigment composition, and phenobarbital response were studied. Patients. Three infants, affected by high serum unconjugated bilirubin concentrations, previously classified as type 1 CN. Methods. Serum and bile bilirubin pigment composition, both before and after phenobarbital (PB) treatment, were determined by alkaline methanolysis and high-pressure liquid chromatography. PB was given for at least 3 weeks by oral administration (5 mg/kg bw per day). Results. No diconjugated bilirubin was found either before or after PB treatment in the serum of the three studied infants. In two patients traces of monoconjugated bilirubin were detected before PB therapy, and the ratio of conjugated/total bilirubin (percent) was increased by the PB response. In the third patient, traces of monoconjugated bilirubin appeared only after PB administration. However, the serum unconjugated bilirubin concentration decreased significantly only in the second patient, following the second cycle of PB treatment, leading to the diagnosis of type 2 CN. The analysis of the methyl ester derivatives of bile pigments was also performed on bile samples obtained in two patients by Entero-Test (R) both before and after PB treatment. An absolute increment in monoesterified bilirubin concentration was found after PB administration, although the percent concentration increased in one case and decreased in the other. No diesterified bilirubin was detected in the bile samples. Conclusions. The present results show that in types 1 and 2 CN disease it is possible to detect traces of monconjugated but not diconjugated bilirubin both in serum and in bile. Whereas PB treatment is effective in slightly increasing the serum monoconjugated bilirubin concentration even in type 1 CN disease, the diagnosis of type 1 or 2 is based on finding a substantial decrease of serum unconjugated bilirubin following PB administration.

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