Abstract:
BACKGROUND:Cultivated rice species (Oryza sativa L. and O. glaberrima Steud.) are generally considered among the crop species most sensitive to salt stress. A handful of lines are known to be tolerant, and a small number of these have been used extensively as donors in breeding programs. However, these donors use many of the same genes and physiological mechanisms to confer tolerance. Little information is available on the diversity of mechanisms used by these species to cope with salt stress, and there is a strong need to identify varieties displaying additional physiological and/or genetic mechanisms to confer higher tolerance. RESULTS:Here we present data on 103 accessions from O. sativa and 12 accessions from O. glaberrima, many of which are identified as salt tolerant for the first time, showing moderate to high tolerance of high salinity. The correlation of salinity-induced senescence (as judged by the Standard Evaluation System for Rice, or SES, score) with whole-plant and leaf blade Na+ concentrations was high across nearly all accessions, and was almost identical in both O. sativa and O. glaberrima. The association of leaf Na+ concentrations with cultivar-groups was very weak, but association with the OsHKT1;5 allele was generally strong. Seven major and three minor alleles of OsHKT1;5 were identified, and their comparisons with the leaf Na+ concentration showed that the Aromatic allele conferred the highest exclusion and the Japonica allele the least. A number of exceptions to this association with the Oryza HKT1;5 allele were identified; these probably indicate the existence of additional highly effective exclusion mechanisms. In addition, two landraces were identified, one from Thailand and the other from Senegal, that show high tissue tolerance. CONCLUSIONS:Significant variation in salinity tolerance exists within both cultivated Oryza species, and this is the first report of significant tolerance in O. glaberrima. The majority of accessions display a strong quantitative relationship between tolerance and leaf blade Na+ concentration, and thus the major tolerance mechanisms found in these species are those contributing to limiting sodium uptake and accumulation in active leaves. However, there appears to be genetic variation for several mechanisms that affect leaf Na+ concentration, and rare cases of accessions displaying different mechanisms also occur. These mechanisms show great promise for improving salt tolerance in rice over that available from current donors.
journal_name
BMC Plant Bioljournal_title
BMC plant biologyauthors
Platten JD,Egdane JA,Ismail AMdoi
10.1186/1471-2229-13-32subject
Has Abstractpub_date
2013-02-27 00:00:00pages
32issn
1471-2229pii
1471-2229-13-32journal_volume
13pub_type
杂志文章abstract:CORRECTION:Following publication of the original article [1], the authors reported that the number of genes overlaying the bar graph in Fig. 3A were incorrectly counted and inserted (i.e. including a title tile, and in inverse order). The corrected numbers are below and match with the listed genes supplied in Additiona...
journal_title:BMC plant biology
pub_type: 杂志文章,已发布勘误
doi:10.1186/s12870-017-1224-y
更新日期:2018-01-15 00:00:00
abstract:BACKGROUND:Alternative splicing (AS) involving tandem acceptors that are separated by three nucleotides (NAGNAG) is an evolutionarily widespread class of AS, which is well studied in Homo sapiens (human) and Mus musculus (mouse). It has also been shown to be common in the model seed plants Arabidopsis thaliana and Oryz...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-10-76
更新日期:2010-04-28 00:00:00
abstract:BACKGROUND:microRNAs (miRNAs) are implicated in plant development processes and play pivotal roles in plant adaptation to environmental stresses. Salicornia europaea, a salt mash euhalophyte, is a suitable model plant to study salt adaptation mechanisms. S. europaea is also a vegetable, forage, and oilseed that can be ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-015-0451-3
更新日期:2015-02-26 00:00:00
abstract:BACKGROUND:Multidrug and toxic compound extrusion (MATE) transporter proteins are present in all organisms. Although the functions of some MATE gene family members have been studied in plants, few studies have investigated the gene expansion patterns, functional divergence, or the effects of positive selection. RESULT...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-016-0895-0
更新日期:2016-09-26 00:00:00
abstract:BACKGROUND:DNA ligase enzymes catalyse the joining of adjacent polynucleotides and as such play important roles in DNA replication and repair pathways. Eukaryotes possess multiple DNA ligases with distinct roles in DNA metabolism, with clear differences in the functions of DNA ligase orthologues between animals, yeast ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-9-79
更新日期:2009-06-26 00:00:00
abstract:BACKGROUND:Calophyllum brasiliense is highlighted as an important resource of calanolides, which are dipyranocoumarins that inhibit the reverse transcriptase of human immunodeficiency virus type 1 (HIV-1 RT). Despite having great medicinal importance, enzymes involved in calanolide, biosynthesis and the pathway itself,...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-016-0862-9
更新日期:2016-08-15 00:00:00
abstract:BACKGROUND:Arachis contains 80 species that carry many beneficial genes that can be utilized in the genetic improvement of peanut (Arachis hypogaea L. 2n = 4x = 40, genome AABB). Chromosome engineering is a powerful technique by which these genes can be transferred and utilized in cultivated peanut. However, their smal...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-018-1468-1
更新日期:2018-10-17 00:00:00
abstract:BACKGROUND:Many flowering plants produce bicellular pollen. The two cells of the pollen grain are destined for separate fates in the male gametophyte, which provides a unique opportunity to study genetic interactions that govern guided single-cell polar expansion of the growing pollen tube and the coordinated control o...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-12-24
更新日期:2012-02-16 00:00:00
abstract:BACKGROUND:To maintain sweetpotato (Ipomoea batatas (L.) Lam) growth and yield, sucrose must be transported from the leaves to the roots. Sucrose transporters or carriers (SUTs or SUCs) transport sucrose and are involved in plant growth and response to abiotic stress. However, the mechanisms of SUTs in sweetpotato abio...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02382-8
更新日期:2020-04-15 00:00:00
abstract:BACKGROUND:Sesame (Sesame indicum L.) is well-known as a versatile industrial crop having various usages and contains 50-55% oil, 20% protein, 14-20% carbohydrate and 2-3% fiber. Several environmental factors are known to adversely affect yield and productivity of sesame. Our overall aim was to improve the growth, yiel...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-2077-3
更新日期:2019-11-04 00:00:00
abstract:BACKGROUND:Nitrogen (N) and potassium (K) are two important mineral nutrients in regulating leaf photosynthesis. Studying the interactive effects of N and K on regulating N allocation and photosynthesis (Pn) of rice leaves will be of great significance for further increasing leaf Pn, photosynthetic N use efficiency (PN...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-1894-8
更新日期:2019-07-10 00:00:00
abstract:BACKGROUND:Flower development and sufficient fruit set are important parameters with respect to walnut yield. Knowledge about flowering genes of fruit trees can help to conduct better molecular breeding programs. Therefore, this study was carried out to investigate the expression pattern of some flowering genes (FT, SO...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02372-w
更新日期:2020-04-03 00:00:00
abstract:BACKGROUND:Phalaenopsis orchids are popular floral crops, and development of new cultivars is economically important to floricultural industries worldwide. Analysis of orchid genes could facilitate orchid improvement. Bacterial artificial chromosome (BAC) end sequences (BESs) can provide the first glimpses into the seq...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-11-3
更新日期:2011-01-06 00:00:00
abstract:BACKGROUND:Wheat stripe rust (caused by Puccinia striiformis f. sp. Tritici), is a major disease that causes huge yield damage. New pathogen races appeared in the last few years and caused a broke down in the resistant genotypes. In Egypt, some of the resistant genotypes began to be susceptible to stripe rust in recent...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02813-6
更新日期:2021-01-14 00:00:00
abstract:BACKGROUND:Species in the Solanaceae family are known for producing plethora of specialized metabolites. In addition to biosynthesis pathways, a full comprehension of secondary metabolism must also take into account the transport and subcellular compartmentalization of substances. Here, we examined the MATE (Multidrug ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-017-1115-2
更新日期:2017-10-30 00:00:00
abstract:BACKGROUND:Fenclorim (Fen) can effectively protect rice from pretilachlor (Pre) injury, but its effects on rice have not been formally evaluated; thus, the Fen mode of action for alleviating the phytotoxicity caused by Pre in rice is not clear. This study aimed to examine the biochemical and physiological effects of Fe...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-2304-y
更新日期:2020-03-06 00:00:00
abstract:BACKGROUND:Previously, transgenic trichome-bearing (hairy leaf) Brassica napus lines expressing either the Arabidopsis thaliana GL3 gene (line AtGL3+) [1] or the AtGL3 gene in combination with an RNAi construct to down-regulate TTG1 (line K-5-8) [2] were developed. The leaves of these lines exhibited altered insect fee...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-018-1277-6
更新日期:2018-04-16 00:00:00
abstract:BACKGROUND:ABA-mediated processes are involved in plant responses to water deficit, especially the control of stomatal opening. However in grapevine it is not known if these processes participate in the phenotypic variation in drought adaptation existing between genotypes. To elucidate this question, the response to sh...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-016-0778-4
更新日期:2016-04-18 00:00:00
abstract:BACKGROUND:The ubiquitous, non-proteinaceous amino acid GABA (γ-aminobutyrate) accumulates in plants subjected to abiotic stresses such as chilling, O2 deficiency and elevated CO2. Recent evidence indicates that controlled atmosphere storage causes the accumulation of GABA in apple (Malus x domestica Borkh.) fruit, and...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-13-144
更新日期:2013-09-28 00:00:00
abstract:BACKGROUND:Manganese (Mn), an essential element for plants, can be toxic when present in excess. Stylo (Stylosanthes) is a pioneer tropical legume with great potential for Mn tolerance, but its Mn tolerance mechanisms remain poorly understood. RESULTS:In this study, variations in Mn tolerance were observed among nine ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-1822-y
更新日期:2019-05-22 00:00:00
abstract:BACKGROUND:With the availability of rice and sorghum genome sequences and ongoing efforts to sequence genomes of other cereal and energy crops, the grass family (Poaceae) has become a model system for comparative genomics and for better understanding gene and genome evolution that underlies phenotypic and ecological di...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-10-116
更新日期:2010-06-18 00:00:00
abstract:BACKGROUND:Leaves of Poaceae have a unique morphological feature: they consist of a proximal sheath and a distal blade separated by a ligular region. The sheath provides structural support and protects young developing leaves, whereas the main function of the blade is photosynthesis. The auricles allow the blade to til...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-019-1635-z
更新日期:2019-02-15 00:00:00
abstract:BACKGROUND:Currently, Tectona grandis is one of the most valuable trees in the world and no transcript dataset related to secondary xylem is available. Considering how important the secondary xylem and sapwood transition from young to mature trees is, little is known about the expression differences between those succe...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-015-0599-x
更新日期:2015-09-15 00:00:00
abstract:BACKGROUND:Photoperiodism refers to the ability of plants to measure day length to determine the season. This ability enables plants to coordinate internal biological activities with external changes to ensure normal growth. However, the influence of the photoperiod on maize flowering and stress responses under long-da...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-016-0930-1
更新日期:2016-11-03 00:00:00
abstract:BACKGROUND:There are different opinions about the relationship of two disjunctively distributed varieties Adiantum reniforme L. var. sinense Y.X.Lin and Adiantum reniforme L. Adiantum reniforme var. sinense is an endangered fern only distributed in a narrowed region of Chongqing city in China, while Adiantum reniforme ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-014-0361-9
更新日期:2015-02-05 00:00:00
abstract:BACKGROUND:From field harvest to the consumer's table, fresh citrus fruit spends a considerable amount of time in shipment and storage. During these processes, physiological disorders and pathological diseases are the main causes of fruit loss. Heat treatment (HT) has been widely used to maintain fruit quality during p...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-13-44
更新日期:2013-03-16 00:00:00
abstract:BACKGROUND:The recent development of novel repeat-fruiting types of blackberry (Rubus L.) cultivars, combined with a long history of morphological marker-assisted selection for thornlessness by blackberry breeders, has given rise to increased interest in using molecular markers to facilitate blackberry breeding. Yet no...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/1471-2229-8-69
更新日期:2008-06-20 00:00:00
abstract:BACKGROUND:Inconsistent pear fruit ripening resulting from variable harvest maturity within tree canopies can contribute to postharvest losses through senescence and spoilage that would otherwise be effectively managed using crop protectant and storage regimes. Because those inconsistencies are likely based on metaboli...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-018-1544-6
更新日期:2018-12-18 00:00:00
abstract:BACKGROUND:Shoot architecture is fundamentally crucial to crop growth and productivity. As a key component of shoot architecture, plant height is known to be controlled by both genetic and environmental factors, though specific details remain scarce. RESULTS:In this study, 308 representative soybean lines from a core ...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-021-02836-7
更新日期:2021-01-25 00:00:00
abstract:BACKGROUND:Phased small interfering RNA (phasiRNA) is primarily derived from the 22-nt miRNA targeting loci. GhMYB2, a gene with potential roles in cotton fiber cell fate determination, is a target gene of miR828 and miR858 in the generation of phasiRNAs. RESULTS:In the presented work, through the evaluation of phasin...
journal_title:BMC plant biology
pub_type: 杂志文章
doi:10.1186/s12870-020-02430-3
更新日期:2020-05-15 00:00:00