Results 121 to 130 of about 60,941 (353)

Relaciones dentro de la subfamilia Papilionoideae a la luz de los datos palinológicos [PDF]

open access: yes, 1985
En este t rabajo se realiza un análisis numérico de la semejanza pol ínica de 216 especies de Leguminosae de Andalucía Occi de ntal ~ dichas semejanzas se representan según un dendrograma y a partir del cual se comentan l as implicaciones taxonómicas.A ...
Domínguez Vilches, E.   +3 more
core  

Role of mitochondrial complex I genes in host plant expansion of Bactrocera tau (Tephritidae: Diptera) by CRISPR/Cas9 system

open access: yesInsect Science, EarlyView.
The role of 3 mitochondrial complex I gene in host expansion of Bactrocera tau was verified by CRISPR/Cas9 gene editing system. A stable homogenous strain (Btndufa7‐/‐) of B.tau was established after silencing Ndufa7. The reduced size of larvae and pupae of Ndufa7 knockout strain was first found.Then different levels of fitness and relative expression ...
Wei Shi   +3 more
wiley   +1 more source

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

open access: yesIntegrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez   +4 more
wiley   +1 more source

Flavonoid, pterocarpans and steroid from Erythrina fusca Lour. growing in Bangladesh: isolation, and antimicrobial and free-radical scavenging activity

open access: yesJournal of Medicinal Plants, 2021
Background: Erythrina fusca Lour. (fam. Fabaceae) is a flowering tree, found extensively in tropical and subtropical Asian countries, and is known for its use in traditional medicine for the treatment of various human ailments, for example, fever, liver ...
A Anjum   +6 more
doaj  

The Medicago genome provides insight into the evolution of rhizobial symbioses [PDF]

open access: yes
Legumes (Fabaceae or Leguminosae) are unique among cultivated plants for their ability to carry out endosymbiotic nitrogen fixation with rhizobial bacteria, a process that takes place in a specialized structure known as the nodule.
Bisseling, T.   +5 more
core   +2 more sources

Jasmonates enhance plants tolerance grown in Cd‐contaminated environments: A comprehensive overview

open access: yesAnnals of Applied Biology, EarlyView.
Jasmonates (JAs) enhance plant tolerance to cadmium (Cd) stress by activating antioxidant defences but may reduce Cd uptake, limiting their effectiveness for phytoremediation. This review compiles studies that evaluated the effects of JA application on plants grown in Cd‐contaminated environments. Abstract Cadmium (Cd) is a toxic heavy metal and one of
Raja Yamma Rodrigues Souza   +2 more
wiley   +1 more source

Phenological description for the initial development stage of five Brazilian native forest species according to BBCH scale

open access: yesAnnals of Applied Biology, EarlyView.
Morphology of the two main growth stages—germination and initial development of the forest species Ceiba speciosa (co, cotyledon; eo, eophyll; hp, hypocotyl; me, metaphyll; pk, prickles; pr, primary root; se, seed; sr, secondary root). Abstract A specific phenological scale designated for each forest species facilitates the standardization of different
Mábele de Cássia Ferreira   +2 more
wiley   +1 more source

Isoptopic evidence of the transfer of nitrogen fixed by legumes to coffee trees [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2000
The use of isotopic methods has made it possible to quantify the contribution of nitrogen fixed by a coffee plantation. Thanks to the use of the natural 15N abundance assessment technique, we were able to show that, in field condition, roughly 30/ of the
Snoeck D., Zapata F., Domenach A.M.
doaj  

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