FABACEAE LEGUMINOSAS EBOOK DOWNLOAD

Leguminosas (Fabaceae). Amburana cearensis (Allemao) , šp. Ishpingo. Cedrelinga cateniformis (Ducke) Ducke, šp. Tornillo. inga jedlá, Inga edulis. cromanoles de algunas plantas Fabaceae (Leguminosae) de Turquía. semillas de los diferentes taxones de leguminosas contenían los ácidos linoleico. Request PDF on ResearchGate | On Mar 1, , Ma. del Carmen Angeles Gonzalez Chavez and others published Uso de leguminosas (Fabaceae) en.


FABACEAE LEGUMINOSAS EBOOK DOWNLOAD

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FABACEAE LEGUMINOSAS EBOOK DOWNLOAD


Distribution and habitat fabaceae leguminosas edit ] The Fabaceae have an essentially worldwide distribution, being found everywhere except Antarctica and the high arctic. Cross-section through a root fabaceae leguminosas of Vicia observed through a microscope.

Biological nitrogen fixation BNF, performed by the organisms called diazotrophs is a very old process that probably originated in the Archean eon when the primitive atmosphere lacked oxygen.

FABACEAE LEGUMINOSAS EBOOK DOWNLOAD

It is only carried out by Euryarchaeota and just 6 of the more than 50 phyla of bacteria. Some of these lineages co-evolved together with the flowering plants establishing the molecular basis of a mutually beneficial fabaceae leguminosas relationship.

Fabaceae - Wikipedia

BNF is carried out in nodules that are mainly located fabaceae leguminosas the root cortex, although they are occasionally located in the stem as in Fabaceae leguminosas rostrata. The spermatophytes that co-evolved with actinorhizal diazotrophs Frankia or with rhizobia to establish their symbiotic relationship belong to 11 families contained within the Rosidae clade as established by the gene molecular phylogeny of rbcL, a gene coding for part of the RuBisCO enzyme in the chloroplast.

This grouping indicates that the predisposition for forming nodules probably only arose once in flowering plants and that it can be considered as an ancestral characteristic that has been conserved or lost in certain lineages. Fabaceae leguminosas, such a wide distribution of families and genera within this lineage indicates that nodulation had multiple origins.

Of the 10 families within the Rosidae, 8 have nodules formed by actinomyces BetulaceaeCasuarinaceaeCoriariaceaeDatiscaceaeElaeagnaceaeMyricaceaeRhamnaceae and Rosaceaeand the fabaceae leguminosas remaining families, Ulmaceae and Fabaceae have nodules formed by fabaceae leguminosas.

Rhizobia are specific to particular host species although a rhizobia species may often infect more than one host species.

FABACEAE LEGUMINOSAS EBOOK DOWNLOAD

This means that one plant species may be infected by more than one species of fabaceae leguminosas. For example, nodules in Acacia senegal can contain seven species of rhizobia belonging to three fabaceae leguminosas genera.

The most distinctive characteristics that allow rhizobia to be distinguished apart are the rapidity of their growth and the type of root nodule that they form with their host.

FABACEAE LEGUMINOSAS EBOOK DOWNLOAD

Indeterminate nodules are characteristic of legumes from temperate climates, while determinate nodules are commonly found in species from tropical or subtropical climates. Nodule formation is present in all the leguminosae sub-families, although it fabaceae leguminosas less common in the Caesalpinioideae.

All types of nodule formation are present in the sub-family Papilionoideae: The latter fabaceae leguminosas are thought to be the most modern and specialised type of nodule as they fabaceae leguminosas only present in some lines of the Papilionoideae sub-family.

Types of androecium in the Fabaceae of SW Europe [1999]

Even though nodule formation is common in the two monophyletic subfamilies Papilionoideae and Mimosoideae they also contain species that do not form nodules. The presence or absence of nodule-forming species within the three sub-families indicates that nodule formation has arisen several times during the evolution of the leguminosae and that this ability has been lost in some lineages.

For example, within the genus Acacia, a member of the Mimosoideae, Fabaceae leguminosas. Chemical ecology[ edit ] A fabaceae leguminosas number of species within many genera of leguminous plants, e.

AstragalusCoronillaHippocrepisIndigoferaLotusSecurigera and Scorpiurusproduce chemicals that derive from the compound 3-nitropropanoic acid 3-NPA, beta-nitropropionic acid.

The free acid 3-NPA is an irreversible inhibitor of mitochondrial fabaceae leguminosasand thus the compound inhibits the tricarboxylic acid cycle. This inhibition caused by 3-NPA is especially toxic to nerve cells and represents a very general toxic mechanism suggesting a profound ecological importance due to the big number of species producing this compound and its derivatives.

A second and closely related class of secondary metabolites that occur in many species of leguminous plants is defined by isoxazolinone fabaceae leguminosas.

These compounds occur in particular together with 3-NPA and related derivatives at the same time in the same species, as found in Astragalus canadensis and Astragalus collinus.



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