Results 21 to 30 of about 1,021 (90)

Morfoanatomia da raiz tuberosa de Vernonia oxylepis Sch. Bip. in Mart. ex Baker - Asteraceae Morpho-anatomy of the tuberous root of Vernonia oxylepis Sch. Bip. in Mart. ex Baker - Asteraceae

open access: yesActa Botânica Brasílica, 2006
Várias espécies herbáceas e subarbustivas, nativas do Cerrado no Brasil, são geofitas, ou seja, sobrevivem ao período desfavorável de déficit hídrico e de baixas temperaturas, que muitas vezes coincide com incêndios, mantendo apenas a porção subterrânea.
Divina Aparecida Anunciação Vilhalva   +1 more
doaj   +1 more source

Anatomia de Euterpe oleracea Mart. (Palmae da Amazônia) [PDF]

open access: yes, 1975
Analisada a estrutura anatômica da raíz e folha-axial de espécimes jovens e adultos; da pina, fruto, semente e raque secundário da inflorescência. Detectadas ainda substâncias de reservas, notadamente cristais inulínicos, hemicelulose e lipídios; e ...
Paula, José Elias de
core   +1 more source

Gema axilar e periciclo envolvidos no processo de espessamento nodal do rizóforo em espécies de Smilax

open access: yes, 2018
The species of the genus Smilax, popularly known as sarsaparilla, are widely used in folk medicine due to the antirheumatic properties of its underground structures. Smilax fluminensis and S. syphilitica occur in forested areas and form thickened stems called rhizophores from which adventitious roots grow.
Appezzato-da-Glória, B.   +4 more
openaire   +2 more sources

RNA tomography reveals spatial gene expression maps of Arabidopsis thaliana roots infected with Heterodera schachtii

open access: yesNew Phytologist, Volume 249, Issue 1, Page 588-602, January 2026.
Summary Plant‐parasitic cyst nematodes, such as Heterodera schachtii, cause substantial crop losses world‐wide and induce specialized feeding structures in host roots, yet the molecular mechanisms underlying feeding structure initiation and development remain poorly understood.
Anna Pijnacker   +8 more
wiley   +1 more source

Anatomia de raízes de Actinocephalus (Koern.) Sano (Eriocaulaceae) Root anatomy of Actinocephalus (Koern.) Sano (Eriocaulaceae)

open access: yesActa Botânica Brasílica, 2005
Estudou-se a anatomia de raízes de 27 espécimes de 13 espécies de Actinocephalus (Koern.) Sano que ocorrem nos campos rupestres brasileiros. As raízes de todos os espécimes estudados caracterizam-se por apresentar: epiderme unisseriada, com pêlos ...
Vera Lucia Scatena   +2 more
doaj   +1 more source

Arabidopsis thaliana exhibits wide within‐species variation in tolerance to boron limitation and root and shoot trait resilience associate with a pleiotropic locus

open access: yesNew Phytologist, Volume 248, Issue 5, Page 2444-2465, December 2025.
Summary To improve plant tolerance to suboptimal availability of the micronutrient boron (B), it is crucial to understand the mechanisms plants have evolved to tolerate B‐limited conditions. We assessed temporal physiological, ionomic and molecular responses to B deficiency across 185 Arabidopsis thaliana accessions grown in soil‐substrate in an ...
Thomas D. Alcock   +8 more
wiley   +1 more source

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

open access: yesBrazilian Archives of Biology and Technology, 2007
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.
Adriana Hissae Hayashi   +1 more
doaj   +1 more source

Pharmacobotanical studies of wild indigo species (Indigofera suffruticosa and Indigofera truxillensis, Leguminosae,) with pharmacological properties [PDF]

open access: yes
Indigofera suffruticosa e Indigofera truxillensis são espécies de Leguminosae que se destacam no gênero por suas propriedades farmacológicas. O objetivo deste trabalho foi estabelecer um controle de qualidade morfológico para as matérias-primas vegetais ...
BARROS, Giselle Monte Cassiano Canavaci   +1 more
core   +1 more source

Coordination of cortex modifications in time, space, and under stress

open access: yesNew Phytologist, Volume 248, Issue 4, Page 1677-1685, November 2025.
Summary In roots, cell‐type‐specific differentiation enables specialized responses to environmental stress. The cortex, located between the vasculature and epidermis, is a key site for stress‐responsive modifications. The distinct specializations of the cortex are controlled by developmental, positional and environmental signals.
Dorota Kawa   +2 more
wiley   +1 more source

Anatomia de raízes de nove espécies de Bromeliaceae (Poales) da região amazônica do estado de Mato Grosso, Brasil Anatomy of the roots of nine species of Bromeliaceae (Poales) from the Amazon, Mato Grosso, Brazil

open access: yesActa Botânica Brasílica, 2011
Este estudo busca caracterizar raízes de Bromeliaceae: Aechmea bromeliifolia, A. castelnavii, A. mertensii (Bromelioideae), Dyckia duckei, D. paraensis, D. racemosa (Pitcairnoideae), Tillandsia adpressiflora, T. didistachae e T.
Ivone Vieira da Silva   +1 more
doaj   +1 more source

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