Effect of moisture stress on composition and yield in leaf resin of Hymenaea courbaril

Langenheim, Jean H.; Stubblebine, Will H.; Foster, Craig E.

doi:10.1016/0305-1978(79)90036-x

Cited by 31 publications

(5 citation statements)

References 28 publications

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“…Hymenaea spp. that grow in moist forests or close to streams apparently synthesizes greatest quantities of resin, whereas species that live in dry forests produce less quantity of resin, but they produce relatively more during the wet season than in the dry season [ 36 ]. Thus, the amber from H .…”

Section: Resultsmentioning

confidence: 99%

Entrapment Bias of Arthropods in Miocene Amber Revealed by Trapping Experiments in a Tropical Forest in Chiapas, Mexico

et al. 2015

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All entomological traps have a capturing bias, and amber, viewed as a trap, is no exception. Thus the fauna trapped in amber does not represent the total existing fauna of the former amber forest, rather the fauna living in and around the resin producing tree. In this paper we compare arthropods from a forest very similar to the reconstruction of the Miocene Mexican amber forest, and determine the bias of different trapping methods, including amber. We also show, using cluster analyses, measurements of the trapped arthropods, and guild distribution, that the amber trap is a complex entomological trap not comparable with a single artificial trap. At the order level, the most similar trap to amber is the sticky trap. However, in the case of Diptera, at the family level, the Malaise trap is also very similar to amber. Amber captured a higher diversity of arthropods than each of the artificial traps, based on our study of Mexican amber from the Middle Miocene, a time of climate optimum, where temperature and humidity were probably higher than in modern Central America. We conclude that the size bias is qualitatively independent of the kind of trap for non–extreme values. We suggest that frequent specimens in amber were not necessarily the most frequent arthropods in the former amber forest. Selected taxa with higher numbers of specimens appear in amber because of their ecology and behavior, usually closely related with a tree–inhabiting life. Finally, changes of diversity from the Middle Miocene to Recent time in Central and South America can be analyzed by comparing the rich amber faunas from Mexico and the Dominican Republic with the fauna trapped using sticky and Malaise traps in Central America.

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Section: Resultsmentioning

confidence: 99%

Entrapment Bias of Arthropods in Miocene Amber Revealed by Trapping Experiments in a Tropical Forest in Chiapas, Mexico

et al. 2015

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“…Growth chamber and greenhouse experiments on seedlings demonstrated that composition in the mature leaf was not significantly affected by any of the factors, but that light intensity (irradiance) significantly increased yield (Table III) (79)(80)(81). Field studies of soil nutrient effects on resins of Copaifera, in comparative studies with Hymenaea, likewise showed no statistically significant effects on composition, but that increased availability of nitrogen decreased the yield (82-83)-as had been discovered in studies of monoterpenes (e.g., 84).…”

Section: Studies Of Chemical Ecology Of Hymenaeamentioning

confidence: 99%

Biology of Amber-Producing Trees: Focus on Case Studies of Hymenaea and Agathis

Langenheim

1995

ACS Symposium Series

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“…This correspondence between a diverse array of half-sib families grown under radically different preplanting conditions attests to the environmental stability and strong genetic control characterizing terpene biosynthesis in conifers. There have been many reports of environmental variation in terpene composition due to factors such as moisture stress (Langenheim et al 1979) nutritional status (Muzika et al 1989), fungal infection (I'aine et al 1987), and insect defoliation (Tobolski 1968). However, when appropriate sampling precautions are taken to avoid environmental extremes or to partition genetic versus environmental variances, environmental, compared to genetic variation, is virtually negligible.…”

Section: Environmental Stabilitymentioning

confidence: 99%

Applications of terpene analysis in forest genetics

Hanover

1992

New Forest

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Application. Terpenoid compounds of conifers offer some advantages over other molecular markers and should be considered for use in fingerprinting genetic materials, measuring genetic diversity, selecting for resistance to pests, and determining systematic relationships and adaptation of species and races.Abstract. Terpenoid substances in forest trees are versatile biochemical systems for use as genetic markers and for studying genetic regulation at the biochemical level. Univariate, multivariate and correlative data analyses from numerous studies on different coniferous species are presented. These data indicate that fitness values for most terpenes examined are probably so low as to be unmeasurable except in long evolutionary time spans. Variation patterns for monoterpenes often closely parallel racial differentiation for morphological traits and reflect the migratory history of species and species-complexes. Random drift and gene flow are likely the major influences on genetic organization of terpene variability. Mutation in regulatory genes may be responsible for quantitative variation within major gene systems for terpenes. The mono-, sesqui-and diterpene systems in conifers offer good opportunities for research on the nature of gene regulation in plants and its evolutionary significance.

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Effect of moisture stress on composition and yield in leaf resin of Hymenaea courbaril

Cited by 31 publications

References 28 publications

Entrapment Bias of Arthropods in Miocene Amber Revealed by Trapping Experiments in a Tropical Forest in Chiapas, Mexico

Entrapment Bias of Arthropods in Miocene Amber Revealed by Trapping Experiments in a Tropical Forest in Chiapas, Mexico

Biology of Amber-Producing Trees: Focus on Case Studies of Hymenaea and Agathis

Applications of terpene analysis in forest genetics

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