Underground system of geoxylic species of Homalolepis Turcz. (Simaroubaceae, Sapindales) from the Brazilian Cerrado

Morphological and developmental investigations of the underground system of Erythroxylum species from Brazilian cerrado

Australian Journal of Botany ◽

10.1071/bt07060 ◽

2007 ◽

Vol 55 (7) ◽

pp. 749 ◽

Cited By ~ 11

Author(s):

Alexandre Antonio Alonso ◽

Silvia Rodrigues Machado

Keyword(s):

Root System ◽

Primary Root ◽

Additional Stress ◽

Aluminium Content ◽

Brazilian Cerrado ◽

Aerial Shoot ◽

Stage Of Development ◽

Slow Development ◽

Shrubby Species ◽

Underground System

Brazilian cerrado, a neotropical savanna, is characterised by a strongly seasonal climate with distinctive wet and dry seasons, and deep and well drained soils that are acidic and with high aluminium content. Recurrent fires in the dry season place additional stress on the survival of plants, which exhibit an array of strategies of survival. The purpose of this work was to study the underground system of Erythroxylum nanum A.St-Hil. and E. campestre A.St-Hil., two sub-shrubby species, and E. tortuosum Mart., a shrubby species, verifying the possible relationship between the morphology of the underground organs and the resprouting ability of these plants. Anatomical analyses followed the usual techniques of plant anatomy. The cotyledons of the three species were green, foliaceous and photosynthesising. The two sub-shrubby species (Erythroxylum nanum and E. campestre) showed slow development of the aerial shoot system and extensive growth of the primary root in the initial stage of development. E. tortuosum presented the most pronounced development of the aerial system and a poorly developed primary root compared with the sub-shrubby species. The sub-shrubby species occurred in clumps and had underground systems interlinked, consisting of a deep axial primary root system besides soboles in E. nanum and xylopodium in E. campestre. Plants of the E. tortuosum were isolated, highly branched and their underground system consisted of a superficial primary root system. Abundance of reserves and the bud-forming potential of the soboles, xylopodium and roots resulted in production of vigorous branches that are highly valuable in the regeneration of the aerial biomass following fire or seasonal dry in cerrado.

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Anatomy of the underground system in Vernonia grandiflora Less. and V. brevifolia Less. (Asteraceae)

Brazilian Archives of Biology and Technology ◽

10.1590/s1516-89132007000700009 ◽

2007 ◽

Vol 50 (6) ◽

pp. 979-988 ◽

Cited By ~ 27

Author(s):

Adriana Hissae Hayashi ◽

Beatriz Appezzato-da-Glória

Keyword(s):

Environmental Conditions ◽

Primary Root ◽

Dry Season ◽

Herbaceous Species ◽

Root Structure ◽

Brazilian Cerrado ◽

Tuberous Roots ◽

Cortical Parenchyma ◽

Underground System

This work dealt with the anatomy of the underground system in Vernonia grandiflora Less. and V. brevifolia Less. (Vernonieae; Asteraceae), two perennial geophytes, to elucidate their ability to sprout in the Brazilian Cerrado conditions. V. grandiflora, a subshrubby species, possessed a thickened underground system constituted by a xylopodium and many tuberous roots. The xylopodium had stem and root structure and its buds were axillary or originated from the cortical parenchyma proliferation. The tuberous roots produced by this organ were adventitious and accumulated inulin-type fructans mainly in the cortical parenchyma. The thickened underground system of V. brevifolia, an herbaceous species, was a tuberous primary root whose buds originated from the proliferated pericycle. The occurrence of these bud-forming underground systems, which stored reserve compounds, enabled these plants to survive throughout unfavourable environmental conditions in the Cerrado, such as dry season and frequent fires in the winter.

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Evaluation of the in vitro trypanocidal activity of plant extracts from the Brazilian Cerrado

Planta Medica ◽

10.1055/s-0029-1234485 ◽

2009 ◽

Vol 75 (09) ◽

Author(s):

WR Cunha ◽

FM Dos Santos ◽

JA Peixoto ◽

RCS Veneziani ◽

AEM Crotti ◽

...

Keyword(s):

Plant Extracts ◽

Brazilian Cerrado ◽

Trypanocidal Activity

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Aqueous portion of Byrsonima intermedia A. Juss (Malpighiaceae): indication of gastroprotective and healing action of a medicinal plant from Brazilian Cerrado

Planta Medica ◽

10.1055/s-0029-1234436 ◽

2009 ◽

Vol 75 (09) ◽

Author(s):

RC Santos ◽

M Sannomiya ◽

CH Pellizzon ◽

W Vilegas ◽

CA Hiruma-Lima

Keyword(s):

Medicinal Plant ◽

Brazilian Cerrado

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High throughput screening to investigate Brazilian Cerrado biome plant extract bank chemical diversity

Planta Medica ◽

10.1055/s-0036-1596238 ◽

2016 ◽

Vol 81 (S 01) ◽

pp. S1-S381

Author(s):

LS Espindola ◽

RG Dusi ◽

KR Gustafson ◽

J McMahon ◽

JA Beutler

Keyword(s):

High Throughput ◽

Plant Extract ◽

High Throughput Screening ◽

Chemical Diversity ◽

Brazilian Cerrado ◽

Cerrado Biome

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A New Species of Apostolepis (Serpentes, Colubridae, Elapomorphini), Belonging to Assimilis Group, Found in Brazilian Cerrado

Ciência em Movimento ◽

10.15602/1983-9480/cmbs.v13n27p71-76 ◽

2011 ◽

Vol 13 (27) ◽

pp. 71-76

Author(s):

T. De Lema ◽

M.F. Renner

Keyword(s):

New Species ◽

Brazilian Cerrado ◽

A New Species

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A New Species of Turnera (Turneraceae, Passifloraceae s. l.) from the Brazilian Cerrado

Systematic Botany ◽

10.1600/036364420x16033963649309 ◽

2020 ◽

Vol 45 (4) ◽

pp. 826-832

Author(s):

Lamarck Rocha ◽

Maria Mercedes Arbo

Keyword(s):

New Species ◽

Brazilian Cerrado ◽

Distribution Map ◽

Sem Images ◽

Dark Blue ◽

A New Species

Abstract—Turnera macrosperma, a new species from the Brazilian Cerrado, is described and illustrated. The new species belongs to the series Turnera and can be characterized by the white petals with dark blue/violet basal spot and large seeds with papillose aril. SEM images, distribution map, and comments on taxonomy and morphology are presented.

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Morphology and diet of two sympatric colubrid snakes, Chironius flavolineatus and Chironius quadricarinatus (Serpentes: Colubridae)

Amphibia-Reptilia ◽

10.1163/156853808784125027 ◽

2008 ◽

Vol 29 (2) ◽

pp. 149-160 ◽

Cited By ~ 15

Author(s):

Otavio Augusto Vuolo Marques ◽

Ronaldo Fernandes ◽

Roberta Richard Pinto

Keyword(s):

Foraging Behaviour ◽

Sexual Size Dimorphism ◽

Sympatric Species ◽

Colour Pattern ◽

Ontogenetic Variation ◽

Brazilian Cerrado ◽

Size Dimorphism ◽

Snake Species ◽

Dietary Ecology ◽

Arboreal Habit

Abstract The morphometry and diet of two sympatric species of Chironius (C. flavolineatus and C. quadricarinatus) from Brazilian Cerrado are described. The two snake species differ in external morphology, as Chironius flavolineatus was the largest species (body, tail and eyes) whereas C. quadricarinatus the heaviest. Each species also showed marked sexual size dimorphism. In terms of dietary ecology, both species feed exclusively on frogs with a heavy preference for hylids and may have tendency to eat small items, as noticed in other colubrine species. These two snake species showed a brownish colour pattern and exhibited no ontogenetic variation, suggesting that juveniles and adults use similar substrates. Chironius flavolineatus and C. quadricarinatus present a semi-arboreal habit, with active foraging behaviour, feeding in the ground most of time. Chironius flavolineatus uses higher vegetation for resting and, based on morphological results, seems to be more arboreal than C. quadricarinatus.

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