Molecular, Physiological, and Symbiotic Characterization of Cowpea Rhizobia from Soils Under Different Agricultural Systems in the Semiarid Region of Brazil

2020 ◽  
Vol 20 (3) ◽  
pp. 1178-1192 ◽  
Author(s):  
Pâmella Thalita Souza Sena ◽  
Tailane Ribeiro do Nascimento ◽  
Jaynne de Oliveira Siqueira Lino ◽  
Gilmar Silva Oliveira ◽  
Reginaldo Alves Ferreira Neto ◽  
...  
Keyword(s):  
Semiarid Region ◽  
Agricultural Systems ◽  
Cowpea Rhizobia

scholarly journals Characterization of actinobacteria from the semiarid region, and their antagonistic effect on strains of rhizobia

2017 ◽  
Vol 16 (11) ◽  
pp. 499-507 ◽  
Author(s):  
Vinicius Leite Lima Jose ◽  
Claudia Silveira Martins Suzana ◽  
Aparecida de Siqueira Katia ◽  
Antonio Soares Marcos ◽  
Miranda Martins Claudia
Keyword(s):  
Antagonistic Effect ◽  
Semiarid Region

scholarly journals Characterization of carcasses of Zebu cattle raised in a semiarid region according to sex

2020 ◽  
Vol 49 ◽  
Author(s):  
Filipe Martins Ferraz ◽  
Fredson Vieira e Silva ◽  
Laura Lúcia dos Santos Oliveira ◽  
Iran Borges ◽  
Dorismar David Alves ◽  
...  
Keyword(s):  
Semiarid Region ◽  
Zebu Cattle

scholarly journals Plant Biodiversity Knowledge Varies by Gender in Sustainable Amazonian Agricultural Systems Called Chacras

2019 ◽  
Vol 11 (15) ◽  
pp. 4211 ◽  
Author(s):  
Carmen X. Luzuriaga-Quichimbo ◽  
Míriam Hernández del Barco ◽  
José Blanco-Salas ◽  
Carlos E. Cerón-Martínez ◽  
Trinidad Ruiz-Téllez
Keyword(s):  
Rural Communities ◽  
Gender Bias ◽  
Agricultural Practices ◽  
Agricultural Systems ◽  
Sustainable Development Goal ◽  
Plant Knowledge ◽  
Biodiversity Knowledge ◽  
Amazonian Ecuador ◽  
Tropical America

Chacras, which are Amazonian agricultural systems, are examples of traditional agricultural management that are sustainable. They are also characteristic of the identities of different ethnographic groups in tropical America. However, information regarding the botanical characterization of chacras is scant. In tropical rural communities, there is a gender bias hypothesis that makes women potential reservoirs of traditional chacras plant knowledge. We present an experimental study in order to demonstrate if this knowledge difference really exists and to plan accordingly. We performed workshops in an isolated Kichwa community from Amazonian Ecuador. We calculated the cultural signififcance index (CSI) for 97 local flora plants. Our results revealed statistically significant differences. They were coherent with the Kichwa worldview and the structure of their society. We concluded that gender perspective must be taken into account in biodiversity conservation programs, such as, for example, those to implement the resilient agricultural practices of tropical contexts promoted by The United Nations Sustainable Development Goal 2 (SGD2).

scholarly journals MORPHOPHYSIOLOGY OF RHIZOBIA ISOLATED FROM NATIVE FORAGE OF FABACEAE OF THE CAATINGA

2019 ◽  
Vol 32 (4) ◽  
pp. 904-914
Author(s):  
SUELANE DE MELO DIAS ◽  
ALBERÍCIO PEREIRA DE ANDRADE ◽  
ADAILSON PEREIRA DE SOUZA ◽  
ANDRÉ LUIZ RODRIGUES MAGALHÃES ◽  
RISELANE DE LUCENA ALCÂNTARA BRUNO ◽  
...  
Keyword(s):  
High Temperatures ◽  
Native Species ◽  
Growth Period ◽  
Semiarid Region ◽  
Ph Tolerance ◽  
Resistance To Stress ◽  
Macroptilium Atropurpureum ◽  
Physiological Tests ◽  
Exopolysaccharides Production

ABSTRACT The rhizobia found in Fabaceae plants of the Caatinga may have potential as fodder in the semiarid region, thus increasing the availability of feed for animal production in this region. This study aimed to characterize the morphophysiology of rhizobia strains of the forage species Mimosa tenuiflora (Jurema preta), Macroptilium atropurpureum (Siratro), and Desmanthus pernambucanus (Jureminha). The soil used as the substrate was collected at specific locations in the municipalities of Sertânia, Arcoverde, and São Bento do Una, state of Pernambuco. The characterization of rhizobial colonies included growth period, diameter, elevation, transparency, exopolysaccharides production, and color. In addition, salinity, temperature, and pH tolerance tests of the native rhizobia were conducted. Evaluation of cultures showed that the isolates formed colonies with flat elevation, moderate production of exopolysaccharides, coloration varying from cream to white, and a smooth surface. Physiological tests of abiotic stress resistance showed that the native species isolated from M. tenuiflora were more resistant when grown in soils from the municipality of Sertânia and isolates from M. atropurpureum and D. pernambucanus had high resistance to high temperatures, regardless of place of farming. It can be concluded that native rhizobia from the Semiarid region of Pernambuco show resistance to stress caused by high temperatures, salinity variation, and pH. These characteristics are influenced by soil and the botanical species in symbiosis with the rhizobia.

scholarly journals Polyphasic characterization of forage legumes root nodule bacteria isolated from semiarid region in Brazil

2018 ◽  
Vol 41 (3) ◽  
pp. 612-624 ◽  
Author(s):  
Gérsika Fakirra de Oliveira Nunes ◽  
Kelly Alexsandra Souza Menezes ◽  
Aline Araújo Sampaio ◽  
Jakson Leite ◽  
Paulo Ivan Fernandes-Júnior ◽  
...  
Keyword(s):  
Root Nodule ◽  
Semiarid Region ◽  
Nodule Bacteria ◽  
Forage Legumes ◽  
Root Nodule Bacteria ◽  
Polyphasic Characterization

scholarly journals AGRONOMIC AND MORPHOLOGICAL CHARACTERIZATION OF LIPPIA (VERBENACEAE) SPECIES NATIVE FROM BRAZILIAN SEMIARID REGION

2017 ◽  
Vol 92 (2) ◽  
pp. 147
Author(s):  
Ariana Reis Messias Fernandes de Oliveira ◽  
Lenaldo Muniz Oliveira ◽  
José Floriano Barea Pastore ◽  
Tânia Regina dos Santos Silva ◽  
Larissa Correa do Bonfim Costa
Keyword(s):  
Essential Oil ◽  
Agronomic Traits ◽  
Morphological Characterization ◽  
Semiarid Region ◽  
Brazilian Semiarid ◽  
Aromatic Species ◽  
Morphological Differences ◽  
Stem Leaf ◽  
Essential Oil Yield

The genus Lippia L. is represented by several aromatic species, producing essential oils with biological activity, especially antimicrobial.  The semiarid region of Bahia contains several Lippia species that could be economically exploited. This study aimed to characterize morphological and agronomic traits of four species of Lippia native of the semiarid region. The species were collected in a number of cities of the state of Bahia. The experimental design was performed in randomized blocks with four repetitions and four plants per repetition for each species. We conducted quantitative and qualitative morphological characterizations, and evaluated the characters of stem, leaf and inflorescence; in addition to the agronomic characterization, with the fresh and dry matter of inflorescences, we evaluated leaves and stem and essential oil content and yield. The results showed morphological differences between the species for all traits evaluated, except for the number of flowers per inflorescence. The agronomical characterization showed differences for all measured characters, and the species Lippia lasiocalycina was distinguished by the essential oil yield.

scholarly journals Characterization of Tn5-induced symbiotically defective mutants of cowpea rhizobia

1987 ◽  
Vol 41 (3) ◽  
pp. 331-336 ◽  
Author(s):  
Wayne McLaughlin ◽  
Inderpal Singh ◽  
M.H. Ahmad
Keyword(s):  
Cowpea Rhizobia
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