Natural Albino Mutant of Daylily ( spp.) Reveals a Link between Drought Sensitivity and Photosynthetic Pigments Metabolism.

Background: Mutant analysis remains one of the main genetic tools for characterising unclarified gene functions in plants, especially in non-model plants. Daylily ( spp.) is a popular perennial ornamental plant grown worldwide.

Genome-wide identification and expression analysis of the SWEET gene family in daylily (Hemerocallis fulva) and functional analysis of HfSWEET17 in response to cold stress.

Background: The Sugars Will Eventually be Exported Transporters (SWEETs) are a newly discovered family of sugar transporters whose members exist in a variety of organisms and are highly conserved. SWEETs have been reported to be involved in the growth and development of many plants, but little is known about SWEETs in daylily (Hemerocallis fulva), an important perennial ornamental flower.

Results: In this study, 19 daylily SWEETs were identified and named based on their homologous genes in Arabidopsis and rice.

Fanconi anemia ortholog FANCM regulates meiotic crossover distribution in plants.

Meiotic recombination increases genetic diversity and manipulation of its frequency and distribution holds great promise in crop breeding. In Arabidopsis thaliana, FANCM (a homolog of mammalian Fanconi anemia complementation group M) suppresses recombination and its function seems conserved in other species including the rosids Brassica spp. and pea (Pisum sativum), and the monocot rice (Oryza sativa).

The sugar transporter system of strawberry: genome-wide identification and expression correlation with fruit soluble sugar-related traits in a × germplasm collection.

Sugar from plant photosynthesis is a basic requirement for life activities. Sugar transporters are the proteins that mediate sugar allocation among or within source/sink organs. The transporters of the major facilitator superfamily (MFS) targeting carbohydrates represent the largest family of sugar transporters in many plants.

Integrated bioinformatics analysis of As, Au, Cd, Pb and Cu heavy metal responsive marker genes through GEO datasets.

Background: Current environmental pollution factors, particularly the distribution and diffusion of heavy metals in soil and water, are a high risk to local environments and humans. Despite striking advances in methods to detect contaminants by a variety of chemical and physical solutions, these methods have inherent limitations such as small dimensions and very low coverage. Therefore, identifying novel contaminant biomarkers are urgently needed.

In silico-prediction of protein-protein interactions network about MAPKs and PP2Cs reveals a novel docking site variants in Brachypodium distachyon.

Protein-protein interactions (PPIs) underlie the molecular mechanisms of most biological processes. Mitogen-activated protein kinases (MAPKs) can be dephosphorylated by MAPK-specific phosphatases such as PP2C, which are critical to transduce extracellular signals into adaptive and programmed responses. However, the experimental approaches for identifying PPIs are expensive, time-consuming, laborious and challenging.

Ectopic expression of a tobacco vacuolar invertase inhibitor in guard cells confers drought tolerance in Arabidopsis.

There are several hypotheses that explain stomatal behavior. These include the concept of osmoregulation mediated by potassium and its counterions malate and chlorine and the more recent starch-sugar hypothesis. We have previously reported that the activity of the sucrose cleavage enzyme, vacuolar invertase (VIN), is significantly higher in guard cells than in other leaf epidermal cells and its activity is correlated with stomatal aperture.

Evidence that high activity of vacuolar invertase is required for cotton fiber and Arabidopsis root elongation through osmotic dependent and independent pathways, respectively.

Vacuolar invertase (VIN) has long been considered as a major player in cell expansion. However, direct evidence for this view is lacking due, in part, to the complexity of multicellular plant tissues. Here, we used cotton (Gossypium spp.

The Arabidopsis MCM2 gene is essential to embryo development and its over-expression alters root meristem function.

* Minichromosome maintenance (MCM) proteins are subunits of the pre-replication complex that probably function as DNA helicases during the S phase of the cell cycle. Here, we investigated the function of AtMCM2 in Arabidopsis. * To gain an insight into the function of AtMCM2, we combined loss- and gain-of-function approaches.

Posttranslational elevation of cell wall invertase activity by silencing its inhibitor in tomato delays leaf senescence and increases seed weight and fruit hexose level.

Invertase plays multiple pivotal roles in plant development. Thus, its activity must be tightly regulated in vivo. Emerging evidence suggests that a group of small proteins that inhibit invertase activity in vitro appears to exist in a wide variety of plants.

Atmnd1-delta1 is sensitive to gamma-irradiation and defective in meiotic DNA repair.

The efficient repair of double-strand breaks (DSBs) in genomic DNA is crucial for the survival of all organisms. Mnd1 is suggested to promote the strand invasion step during meiotic recombination. We used a forward genetics approach, through the search for mutants, to characterize the Arabidopsis homologue of Mnd1.

[Aberrant development of pollen in transgenic tobacco expressing bacterial iaaM gene driven by pollen- and tapetum-specific promoters].

Microsporogenesis offers an ideal model for studying gene expression, cell division and cell to cell communication during development. The role of auxin in pollen development was investigated in transgenic tobacco plants expressing the coding region of the iaaM gene from Pseudomonas syringae, under control of the promoters Lat-52 (pollen-specific) or TA-29 (tapetum-specific). IAA level in anther of transgenic plants increased significantly, and transgenic plants displayed morphological aberrations not solely attributable to pollen development(such as adventitious root formation on stems, epinastic leaf growth, delayed flowering).