Responses of the common bean (Phaseolus vulgaris L.) and Rhizobium tropici CIAT899 symbiosystem to induced allelopathy by Ipomoea purpurea L. Roth.

[Responses of the common bean (Phaseolus vulgaris L.) and Rhizobium tropici CIAT899 symbiosystem to induced allelopathy by Ipomoea purpurea L. Roth]. Rev Argent Microbiol. 2018 Jun 07;: Authors: Pérez-Peralta PJ, Ferrera-Cerrato R, Alarcón A, Trejo-Téllez LI, Cruz-Ortega R, Silva-Rojas HV Abstract Allelopathy is a phenomenon that involves the production of secondary metabolites that influence the growth of plants and microorganisms; however, this alellopathic effect has been scarcely studied on the rhizobia-legume symbiosis. The aims of this research were 1) to assess the allelopathic potential of aqueous extracts of Ipomoea purpurea L. Roth on seed germination and root length of common bean seedlings (Phaseolus vulgaris L.), 2) to determine its effects on the in vitro growth of Rhizobium tropici CIAT899, and 3) to evaluate the allelopathic potential of I. purpurea on the growth, nodulation and physiology of common bean plants inoculated with R. tropici. After 48h, 15% of the aqueous root extract of I. purpurea stimulated seed germination, whereas 4% of the aqueous shoot extracts stimulated such germination. Both the root or shoot extracts stimulated seed germination and e root length. In vitro growth of R. tropici was inhibited as a result of the application of both aqueous extracts. The presence of I. purpurea negatively affected both the growth and physiological responses of common bean plants, and this effect was attenuated after ...
Source: Revista Argentina de Microbiologia - Category: Microbiology Tags: Rev Argent Microbiol Source Type: research

Related Links:

Julia Machado Khoury, Luiz Filipe Silva Codorino Couto, Douglas de Almeida Santos, Vitor Hugo de Oliveira e Silva, Jo ão Pedro Sousa Drumond, Letícia Lopes de Carvalho e Silva, Leandro Malloy-Diniz, Maicon Rodrigues Albuquerque, Maila de Castro Lourenço das Neves, Frederico Duarte Garcia
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
Markus Stracke, Kristin Gilbert, Meinhard Kieser, Christina Klose, Johannes Krisam, David D. Ebert, Claudia Buntrock, Hanna Christiansen
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
It is currently recognized that in addition to the major impact of human papillomavirus (HPV) infection in females, HPV causes considerable disease in men at the genitals, anal canal, and oropharynx. Specifically, genital HPV infections may progress to genital warts and penile carcinoma. Although studies concerning the natural history of HPV infections and associated neoplasias have mainly focused on women, during the last 2 decades considerable attention has been given in further understanding these infections in men. The HIM (HPV infection in men) Study, the only prospective multicenter study of male HPV natural history,...
Source: Acta Cytologica - Category: Cytology Source Type: research
Sexual intercourse is regarded as the primary route of human papillomavirus (HPV) transmission. Reported rates of the genotype-specific genital concordance of HPV infection among heterosexual partners vary. Most studies have evaluated only male/female genital transmission, but lately, the oral region has gained interest because of a rising trend of HPV-associated oropharyngeal cancer. Risk factors for type-specific concordance have been reported as an increasing number of younger couples, persistent HPV infection, higher frequency of sexual intercourse, rising number of spouse ’s lifetime sexual partners, and sexual ...
Source: Acta Cytologica - Category: Cytology Source Type: research
Publication date: 21 February 2019Source: Cell, Volume 176, Issue 5Author(s): Puneet Seth, Paishiun N. Hsieh, Suhib Jamal, Liwen Wang, Steven P. Gygi, Mukesh K. Jain, Jeff Coller, Jonathan S. StamlerSummaryBioactive molecules can pass between microbiota and host to influence host cellular functions. However, general principles of interspecies communication have not been discovered. We show here in C. elegans that nitric oxide derived from resident bacteria promotes widespread S-nitrosylation of the host proteome. We further show that microbiota-dependent S-nitrosylation of C. elegans Argonaute protein (ALG-1)&mda...
Source: Cell - Category: Cytology Source Type: research
Publication date: 21 February 2019Source: Cell, Volume 176, Issue 5Author(s): Shashi Gujar, John Bell, Jean-Simon DialloOncolytic viruses (OVs) preferentially infect and kill cancer cells without harming normal cells. OVs can revert cancer-associated immune suppression and initiate clinically meaningful antitumor immune responses. OVs and their resultant immunological events can act at both primary and metastatic sites. Thus, OVs can be exploited for cancer gene therapies and immunotherapies alone or in combination with other interventions, including immune checkpoint blockade.
Source: Cell - Category: Cytology Source Type: research
Publication date: 21 February 2019Source: Cell, Volume 176, Issue 5Author(s): Mary T. Joy, Einor Ben Assayag, Dalia Shabashov-Stone, Sigal Liraz-Zaltsman, Jose Mazzitelli, Marcela Arenas, Nora Abduljawad, Efrat Kliper, Amos D. Korczyn, Nikita S. Thareja, Efrat L. Kesner, Miou Zhou, Shan Huang, Tawnie K. Silva, Noomi Katz, Natan M. Bornstein, Alcino J. Silva, Esther Shohami, S. Thomas CarmichaelSummaryWe tested a newly described molecular memory system, CCR5 signaling, for its role in recovery after stroke and traumatic brain injury (TBI). CCR5 is uniquely expressed in cortical neurons after stroke. Post-stroke neuronal kno...
Source: Cell - Category: Cytology Source Type: research
Publication date: 21 February 2019Source: Cell, Volume 176, Issue 5Author(s): Ting Fu, Sally Coulter, Eiji Yoshihara, Tae Gyu Oh, Sungsoon Fang, Fritz Cayabyab, Qiyun Zhu, Tong Zhang, Mathias Leblanc, Sihao Liu, Mingxiao He, Wanda Waizenegger, Emanuel Gasser, Bernd Schnabl, Annette R. Atkins, Ruth T. Yu, Rob Knight, Christopher Liddle, Michael Downes, Ronald M. EvansSummaryIncreased levels of intestinal bile acids (BAs) are a risk factor for colorectal cancer (CRC). Here, we show that the convergence of dietary factors (high-fat diet) and dysregulated WNT signaling (APC mutation) alters BA profiles to drive malignant trans...
Source: Cell - Category: Cytology Source Type: research
Publication date: 21 February 2019Source: Cell, Volume 176, Issue 5Author(s): Valter Tucci, Anthony R. Isles, Gavin Kelsey, Anne C. Ferguson-Smith, Valter Tucci, Marisa S. Bartolomei, Nissim Benvenisty, Déborah Bourc’his, Marika Charalambous, Catherine Dulac, Robert Feil, Juliane Glaser, Lisa Huelsmann, Rosalind M. John, Gráinne I. McNamara, Kim Moorwood, Francoise Muscatelli, Hiroyuki Sasaki, Beverly I. Strassmann, Claudius VincenzComplex multicellular organisms, such as mammals, express two complete sets of chromosomes per nucleus, combining the genetic material of both parents. However, epigenetic st...
Source: Cell - Category: Cytology Source Type: research
Publication date: 21 February 2019Source: Cell, Volume 176, Issue 5Author(s): Unmesh Jadhav, Ramesh A. ShivdasaniSingle-cell transcriptomics coupled with dynamic two-color fluorescence are used by Gehart et al. (2019) to elucidate adult mammalian cell trajectories in real time. The authors’ close examination of intestinal enteroendocrine differentiation reveals new lineage features and shifting cell identities, and experiments in organoids uncover specific roles for transcriptional regulators identified by this approach.
Source: Cell - Category: Cytology Source Type: research
More News: Argentina Health | Green Beans | Microbiology | Physiology