SYSTEMATIC SIGNIFICANCE OF LUPINE ALKALOIDS WITH PARTICULAR REFERENCE TO <i>BAPTISIA</i>
 (LEGUMINOSAE)

Cranmer, Morris F.; Turner, B. L.

doi:10.1111/j.1558-5646.1967.tb03407.x

Cited by 15 publications

(4 citation statements)

References 21 publications

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“…Evidence is rapidly accumulating to support the idea that the primary role of socalled "secondary plant substances" or "waste products" is in influencing intraand interspecific encounters between the plant and other organisms (e.g., natural herbicides-allelopathy, natural insecticides or repellents, natural fungicides; Muller, 1966;Janzen, 1969;Fraenkel, 1959;Brower et al, 1964Brower et al, , 1967Kaplanis et al, 1967;Ben-Aziz, 1967;Farnsworth, 1968;Feeny, 1968;Feeny and Bostock, 1968;Beck, 1965;Stark, 1965;Applebaum, 1964;Applebaum et al, 1965;Cranmer and Turner, 1967;Brown, 1967, etc. ), despite comments to the effect that they "appear to have no biological role in the SEEDS, PREDATION, AND DISPERSAL 3 plants which produce them" (Leete, 1965).…”

Section: Morphological and Chemical Traits Of Seeds And Seed Cropsmentioning

confidence: 99%

Seed‐eaters Versus Seed Size, Number, Toxicity and Dispersal

1969

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Section: Morphological and Chemical Traits Of Seeds And Seed Cropsmentioning

confidence: 99%

Seed‐eaters Versus Seed Size, Number, Toxicity and Dispersal

1969

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“…This failure to detect any sparteine in T. rhornbifolia is surprising but not the only exception to its supposed widespread occurrence among members of this genus (2,3), and should be compared to its rare occurrence in the closely related Baptisia which produces these and other pyridone bases (19). Though sparteine can be specifically converted to lupanine by L. angustifolius (20) there have been no reports to indicate that this can occur in any Therrnopsis species, or for that matter, in any other plant producing pyridone alkaloid^.^ In summary there is no evidence to support the formation or conversion, natural or otherwise, of sparteine to lupanine in this or any Thearnopsis species.…”

Section: Biosynthesis IV (Thermopsis Caroliekana) (2-8 H)mentioning

confidence: 74%

Biosynthesis of Thermopsis Alkaloids from Carbon-14 Dioxide. Evidence for the Formation of the Pyridone Bases from Lupanine Via 5,6-Dehydrolupanine

Cho¹,

Martin²

1971

Can. J. Biochem.

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The observed relative rates and chronology of labelling of the alkaloids of Thermopsis rhombifolia and T. caroliniana following pulse feeding of 14CO2 were consistent with the formation of the pyridone bases from lupanine, via 5,6-dehydrolupanine. Rhombifoline appears to be the first of the tricyclic bases to be formed from the tetracyclic ones. No evidence was obtained for the formation of sparteine, casting doubt on its role in the formation of these alkaloids.

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“…Although small mammals preferred seeds with high nitrogen content, they did not consume large quantities of the two legumes (nitrogen-fixing species) in our study, Baptisia tinctoria and B. bracteata. This could be because some granivores can distinguish structural strength of seeds (Lundgren & Rosentrater 2007), and these Baptisia have hard seed coats; because Baptisia contain secondary chemicals, especially alkaloids, that can deter herbivores (Cranmer & Turner 1967); or due to high pre-dispersal predation in Baptisia (Petersen et al 1998). This finding again supports optimal foraging theory wherein body size correlates with nutrients needed for energy gain (Pyke 1984).…”

Section: Differences In Granivore Preferences For Seed Traitsmentioning

confidence: 99%

Seed predator preferences are associated with seed traits but an unlikely mechanism of local extinction

Johnson

Zettlemoyer

2022

Restoration Ecology

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Certain traits, including those that make species more vulnerable to consumption by predators, may make species inherently susceptible to population declines and local species loss (i.e. extirpation). To examine whether small mammal and arthropod granivory is a mechanism of community change via association with extirpation events, we studied seed predation on six phylogenetically paired extirpated and extant species from Kalamazoo, Michigan, using a seed removal experiment in a restored prairie. We also examined differences in granivore preferences for seed traits (seed mass, water content, C:N content) and differences in seed traits between extirpated and extant taxa. Granivory was independent of extirpation status but was affected by seed traits. Small mammals consumed more seeds than arthropods and preferentially consumed large seeds, while arthropods consumed small seeds and those with higher C:N ratios (lower nitrogen content). Extirpated and extant taxa did not differ in seed traits, perhaps explaining why they did not differ in granivory. Granivory was phylogenetically conserved, suggesting that certain plant families are more susceptible to granivores than others. This study indicates that granivory varies across species and seed traits in a prairie restoration, but does not likely influence extirpation in this system. Understanding granivore preferences may help managers predict establishment success for rare or extirpated species with particular traits being introduced into prairie restorations.

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SYSTEMATIC SIGNIFICANCE OF LUPINE ALKALOIDS WITH PARTICULAR REFERENCE TO BAPTISIA (LEGUMINOSAE)

Cited by 15 publications

References 21 publications

Seed‐eaters Versus Seed Size, Number, Toxicity and Dispersal

Seed‐eaters Versus Seed Size, Number, Toxicity and Dispersal

Biosynthesis of Thermopsis Alkaloids from Carbon-14 Dioxide. Evidence for the Formation of the Pyridone Bases from Lupanine Via 5,6-Dehydrolupanine

Seed predator preferences are associated with seed traits but an unlikely mechanism of local extinction

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