Search results for "Citru"

Abstracts from the Fourth International Meeting of ISEV, ISEV2015, Washington, D.C., USA, 23-26 April 2015

2015

Present status of Phytophthora species in the Mediterranean area, especially in relation to citrus

1990

Of the 44 currently accepted species of Phytophthora, 18 have been reported in the Mediterranean area. The status of each is briefly reviewed. On citrus, P. citrophthora and P. nicotianae var. parasitica are mainly responsible for foot rot and gummosis, and in addition P. hibernalis, P. syringae, P. cifricola and P. cactorum for brown rot of fruits. The incidence of these species is closely linked to their temperature requirements. The use of sour orange as a resistant rootstock has long provided satisfactory control of foot rot and gummosis, while chemical treatments are effective against brown rot. However, there are indications that, with changingcultural practices, the resistance of sou…

OCCURRENCE OF SPONTANEOUS TRIPLOIDS FROM SMALL SEEDS OF 'HERNANDINA' CLEMENTINE

2011

Shelter and remotely sensed night temperatures in orange groves

1991

In previous papers we have used a linear regression approach for determining nocturnal air temperature in orange groves from satellite thermal data. However, this procedure has a poor precision (≈ 2 °C) for applications such as frost forecasting. For this reason a theoretical method has been proposed, which is based on the following assumptions: (1) the air temperature (Ta) is the result of the convective heat exchange between ground and air, and between air and orange trees, and (2) the remotely-sensed temperature (T) can be expressed as a function of ground (Tg) and orange tree (Ts) temperatures. So the relationshipT = Ta + (ag − α) (Tg − Ts) has been derived, wherea = (1 +h2πR/h1L)−1 and…

Plazmas biomarķieru izmaiņas žurku akūtas mezenteriālas išēmijas modelī

2022

Lai gan akūtu mezenteriālu išēmiju (AMI) uzskata par retu slimību, tā ir ātri progresējoša un visbiežāk noved pie pacienta nāves. Neskatoties uz pēdējo gadu medicīnas sasniegumiem, agrīna un pareiza diagnoze vēl joprojām ir apgrūtinoša. Šobrīd klīnikā lietotie laboratorijas testi nav gana specifiski, tādēļ agrīna un jutīga biomarķiera izstrādei ir izšķiroša nozīme, lai glābtu pacientu dzīvības. Darba mērķis ir izpētīt trīs biomarķieru un kopējās antioksidantu spējas izmaiņas žurku plazmā pirmo divu stundu laikā kopš sākusies AMI. D- laktāta un zarnu taukskābes saistošā proteīna (I-FABP) koncentrācijas no išēmijas laika atkarīgā veidā pieauga, savukārt citrulīna līmenis samazinājās. Starp an…

Anti-inflammatory properties of lemon-derived extracellular vesicles are achieved through the inhibition of ERK/NF-κB signalling pathways

2022

Chronic inflammation is associated with the occurrence of several diseases. However, the side effects of anti-inflammatory drugs prompt the identification of new therapeutic strategies. Plant-derived extracellular vesicles (PDEVs) are gaining increasing interest in the scientific community for their biological properties. We isolated PDEVs from the juice of Citrus limon L. (LEVs) and characterized their flavonoid, limonoid and lipid contents through reversed-phase high-performance liquid chromatography coupled to electrospray ionization quadrupole time-of-flight mass spectrometry (RP-HPLC-ESI-Q-TOF-MS). To investigate whether LEVs have a protective role on the inflammatory process, murine a…

Confirmation of Fenthion Metabolites in Oranges by IT-MS and QqTOF-MS

2007

14 pages, 4 figures, 4 tables.-- PMID: 18020315 [PubMed].-- Printed version published Dec 15, 2007.

Role of Neutral Amino Acid Transport and Protein Breakdown for Substrate Supply of Nitric Oxide Synthase in Human Endothelial Cells

2003

Endothelial dysfunction is often associated with a relative substrate deficiency of the endothelial nitric oxide synthase (eNOS) in spite of apparently high intracellular arginine concentrations. For a better understanding of the underlying pathophysiological mechanisms, we aimed to characterize the intracellular arginine sources of eNOS. Our previous studies in human endothelial EA.hy926 cells suggested the existence of two arginine pools: pool I can be depleted by extracellular lysine, whereas pool II is not freely exchangeable with the extracellular space, but accessible to eNOS. In this study, we demonstrate that the eNOS accessible pool II is also present in human umbilical vein endoth…

Using field measurements and FAO-56 model to assess the eco-physiological response of citrus orchards under regulated deficit irrigation

2017

[EN] Micro-irrigation is considered one of the most efficient water distribution systems and allows increasing water use efficiency if coupled with effective water-saving irrigation management strategies as regulated deficit irrigation (RDI) or partial root-zone drying (PRD) techniques. However, application of these strategies makes it crucial the real-time monitoring of soil and crop water status, in order to identify appropriate irrigation scheduling parameters (irrigation timing and doses) and to prevent irreversible damage of plant system and/or crop yield reductions. Even if midday stem water potential (MSWP) is considered one of the most affordable indicator for direct determinations …

The impact of agricultural management on selected soil properties in citrus orchards in Eastern Spain: A comparison between conventional and organic …

2017

The agricultural management of citrus orchards is changing from flood irrigated managed orchards to drip irrigated organic managed orchards. Eastern Spain is the oldest and largest European producer of citrus, and is representative of the environmental changes triggered by innovations in orchard management. In order to determine the impact of land management on different soil quality parameters, twelve citrus orchards sites were selected with different land and irrigation management techniques. Soil samples were taken at two depths, 0-2. cm and 5-10. cm for studying soil quality parameters under the different treatments. Half of the studied orchards were organically managed and the other si…