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10 results for “Phoenix dactylifera”
Bacterial community composition of bulk soil from date palm (Phoenix dactylifera) farm depend on irrigation water salinity
<p>Non-saline and saline ground water irrigation is extensively used in the arid regions of United Arab Emirates (UAE) for date palm (<em>Phoenix</em> <em>dactylifera</em>) cultivation without knowing its effect on bulk soil bacterial communities. Bulk soil acts as a supply base for microbes and nutrients that are accessed by date palm roots. We collected soil samples from date farms across UAE and performed V3-V4 16s rRNA metabarcoding analysis to understand how bulk soil bacterial diversity and communities respond to irrigation water sources (non-saline and saline groundwater irrigation). There was no significant variation in bulk bacterial diversity (Shannon diversity, richness as well as evenness). But bulk bacterial communities differed between irrigation water sources and irrigation water electrical conductivity was the significant factor that explained a part of community variation. Out of total 5089 OTUs, saline bulk soil harbored only 21.3% of total OTUs compared to 31.5% OTUs in non-saline bulk soil, while 47.15% OTUs shared between both types of irrigation. Proteobacteria abundance was higher in saline bulk soil, while Actinobacteriota abundance was enhanced in non-saline bulk soil. Similar selection was observed at genus level, wherein saline bulk soil showed increase in abundance of <em>Subgroup_10, Nitrospira </em>and<em> Mycobacterium</em>, whereas <em>Microvirga, Ammoniphilus, Nitrospira</em> and <em>Lysinibacillus </em>were elevated in non-saline bulk soil. Saline (<em>Novibacillus</em> and <em>Bauldea</em>) and non-saline bulk soil (<em>Microvirga</em>, <em>Marmoricola</em>, <em>Domibacillus</em>, <em>Oceanobacillus</em>, <em>Bhargavaea</em> and <em>Solirubrobacter</em>) showed significant selection of indicator taxa (P < 0.05). This indicate that bacterial communities colonizing bulk soil differ depending on irrigation water source and it is affected by irrigation water EC.</p>
Figure 2 in Evaluation of some nutritional quality criteria of seventeen Moroccan dates varieties and clones, fruits of date palm (Phoenix dactylifera L.)
Figure 2. Representation of dates varieties and clones according to their quality characteristics. (a) Representation of variables according to PCA. (b) Segregation of 17 dates varieties and clones according to their quality attributes.
Salinity of irrigation water selects distinct bacterial communities associated with Date palm (Phoenix dactylifera L.) root
<p>Saline water irrigation has been used extensively in date palm (<em>Phoenix dactylifera </em>L.) agriculture as an alternative to non-saline freshwater due to water scarcity in hyper-arid environments. However, how saline water irrigation affects date palm root-associated bacterial communities is unknown. Here, we investigated the effect of irrigation sources (non-saline vs saline water) on date palm root-associated bacterial communities and their diversity using 16S rRNA gene metabarcoding. The bacterial richness, Shannon diversity and evenness didn’t differ significantly between the irrigation sources. Soil electrical conductivity (EC) and irrigation water pH were negatively related to Shannon diversity and evenness respectively, while soil organic matter displayed a positive correlation with Shannon diversity. Of total, 40.5% OTUs were unique to non-saline water irrigation and 26% to saline water irrigation. The multivariate analyses displayed strong structuring of bacterial communities according to irrigation sources, and both soil EC and irrigation water pH were the major factors affecting communities. The genera <em>Bacillus</em>, <em>Micromonospora</em> and <em>Mycobacterium</em> were dominated while saline water irrigation whereas contrasting pattern was observed for <em>Rhizobium</em>, <em>Streptomyces</em> and <em>Acidibacter</em>. This study suggests that while saline water irrigation date palm root select specific bacterial taxa, potentially playing a crucial role in alleviating salinity stress of the host.</p>
Figure 1 in Evaluation of some nutritional quality criteria of seventeen Moroccan dates varieties and clones, fruits of date palm (Phoenix dactylifera L.)
Figure 1. Map of Zagora of the date palm in Morocco as seen from space (Source: Google earth).
Male diversity matters: Genetic structuring of insular male date palm (Phoenix dactylifera L.) revealed valuable breeding and conservation resources
Most male date palms available for pollinating different female cultivars have mainly originated from seed propagation resulting in many different local males that represent a source of genetic diversity. Favorable fruit production is related to quality of pollen and its compatibility with a certain female variety. Therefore, the genetic characterization of the male pollen as a superior one for each female cultivar should be the first step to establish an intensive program to produce superior males through different procedures. In this study, the genetic diversity and population structure of 72 male date palm accessions were investigated using 15 microsatellite loci. A total number of 125 alleles was detected with an average of 8.33 alleles per locus. Bayesian model-based clustering analysis indicated the presence of two differentiated endemic male date palm genetic clusters, continental and insular, with the presence of introduced accessions originating from the Middle East. The diversity analysis in the insular region of Tunisia, which had never been performed before, revealed that this germplasm enclosed valuable endemic resources supporting the hypothesis of the presence of wild material. These findings are crucial for identifying interesting genotypes that can be integrated into international coordinated actions of Phoenix dactylifera L. breeding programs as well as for the protection and conservation of valuable resources.
Exploring Soil Exchangeable Cations and Auditing the Potential of Phoenix dactylifera and Mangifera indica in CO2 Sequestration into Soil Biomass in a Naturally Occurring Tree Patches Using Infrared Gas Analyzer
<p><em>Soil Exchangeable Cations (EC) were audited, and the potential of economic trees in atmospheric CO2 sequestration into soil biomass was investigated. . The experiment indicated that economic trees are perfect for CO2 sequestration. </em></p>
FIGURE 2 in Xenoacremonium palmarum sp. nov., a novel species associated with Phoenix dactylifera in Iran
FIGURE 2. Xenoacremonium palmarum (IRAN 1348C). a–b. 14-days colony on PDA (reverse and top). c–d. 14-days colony on CMA. e–f. 14-days colony on OA. g–i. Conidiophores and conidia mounted in lactophenol or lactophenol cotton blue. J–k. Conidia. Scale bars: g, j and k = 5 μm, h–i = 10 μm.
FIGURE 1. Phylogenetic tree generated from a in Xenoacremonium palmarum sp. nov., a novel species associated with Phoenix dactylifera in Iran
FIGURE 1. Phylogenetic tree generated from a maximum likelihood (ML) analysis based on the combined tub2, tef1α and ITS sequences of Xenoacremonium strains. The tree was rooted using Stachybotrys chartarum CBS 129.13 as the out-group taxon. Bootstrap values obtained in maximum likelihood (ML) analysis equal or greater than 50% and Bayesian posterior probability values (BYPP) equal or greater than 0.5 are shown at the nodes, respectively.
A Genome-Wide Identification of the miRNAome in Response to Salinity Stress in the Date palm tree (Phoenix dactylifera L.)
GEO Series GSE71445. Phoenix dactylifera. 4 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Moringa Oleifera and Phoenix Dactylifera L. Effects on Cortisol and Breast Milk in Postpartum Depression
ClinicalTrials.gov study NCT07337512. IPD Sharing: NO. Countries: 1. Publications: 0.
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