Genome-Wide Identification and Comprehensive Analysis of Gene Family in Under Abiotic Stress.

The (APETALA2/ethylene-responsive element binding factor) family represents one of the largest transcription factor families in plants, playing pivotal roles in abiotic stress responses and hormone signaling pathways. Through genome-wide analysis, we identified 163 genes in . Transcriptome data revealed that 12 genes were significantly upregulated under either drought or flooding stress, with 8 genes responding to both conditions.

Genome-Wide Identification of the Gene Family in and Its Responses to Abiotic Stress.

Background: The () gene family plays a critical role in abiotic stress tolerance during plant growth and development. Myricaria laxiflora, as a key pioneer species in the extreme hydrological fluctuation zone of the Yangtze River, has evolved unique adaptation mechanisms potentially linked to gene family evolution. However, the molecular mechanisms underlying how the gene family responds to alternating flooding-drought cycles remain unclear.

Combine photosynthetic characteristics and leaf hyperspectral reflectance for early detection of water stress.

Advanced techniques capable of early and non-destructive detection of the impacts of water stress on trees and estimation of the underlying photosynthetic capacities on larger scale are necessary to meet the challenges of limiting plant growth and ecological protection caused by drought. We tested influence of continuous water stress on photosynthetic traits including Leaf Chlorophyll content (LCC) and Chlorophyll Fluorescence (ChlF) and combined hyperspectral reflectance as a high-throughput approach for early and non-destructive assessment of LCC and ChlF traits in trees. LCC and ChlF parameters (NPQ, Fv'/Fm', ETR, ETRmax, Fm', qL, qP, Y(II) were measured alongside leaf hyperspectral reflectance from suffering from constant drought during water stress.

Transcriptomic network underlying physiological alterations in the stem of Myricaria laxiflora in response to waterlogging stress.

Myricaria laxiflora is an endangered shrub plant with remarkable tolerance to waterlogging stress, however, little attention has been paid to understanding the underlying mechanisms. Here, physiological and transcriptomic approaches were applied to uncover the physiological and molecular reconfigurations in the stem of M. laxiflora in response to waterlogging stress.

The complete plastid genome of Schneid. (Rhamnaceae).

C.K.Schneid.

Metabolomic and transcriptomic responses of Adiantum () leaves under drought, half-waterlogging, and rewater conditions.

(Adiantum) is an endangered fern with a narrow distribution along the Yangtze River in China. Due to its cliff-dwelling habit, it experiences water stress conditions, which further endangers its survival. However, no information is available about its molecular responses to drought and half-waterlogging conditions.

Integrated Transcriptomic and Proteomic Analyses Uncover the Regulatory Mechanisms of Under Flooding Stress.

Flooding is one of the major environmental stresses that severely influence plant survival and development. However, the regulatory mechanisms underlying flooding stress remain largely unknown in , an endangered plant mainly distributed in the flood zone of the Yangtze River, China. In this work, transcriptome and proteome were performed in parallel in roots of during nine time-points under the flooding and post-flooding recovery treatments.

Genome-Wide Characterization and Expression Analysis of HD-ZIP Gene Family in .

The homeodomain-leucine zipper (HD-ZIP) gene family, as one of the plant-specific transcription factor families, plays an important role in regulating plant growth and development as well as in response to diverse stresses. Although it has been extensively characterized in many plants, the HD-ZIP family is not well-studied in , a valuable ornamental and traditional Chinese medicinal herb. In this study, 37 HD-ZIP genes were identified in () through the genome search method, and they were classified into four subfamilies based on phylogenetic analysis.

Apoplastic histochemical features of plant root walls that may facilitate ion uptake and retention.

We used brightfield and epifluorescence microscopy, as well as permeability tests, to investigate the apoplastic histochemical features of plant roots associated with ion hyperaccumulation, invasion, and tolerance of oligotrophic conditions. In hyperaccumulator species with a hypodermis (exodermis absent), ions penetrated the root apex, including the root cap. By contrast, in non-hyperaccumulator species possessing an exodermis, ions did not penetrate the root cap.

Morphological structures and histochemistry of roots and shoots in (Tamaricaceae).

(Tamaricaceae) is an endangered plant that is narrowly distributed in the riparian zone of the Three Gorges, along the Yangtze River, China. Using bright-field and epifluorescence microscopy, we investigated the anatomical and histochemical features that allow this species to tolerate both submerged and terrestrial environments. The adventitious roots of had an endodermis with Casparian bands and suberin lamellae; the cortex and hypodermal walls had lignified thickenings in the primary structure.

Morphological and anatomical adaptations to dry, shady environments in var. (Pteridaceae).

The natural distribution of the rare perennial fern var. (Pteridaceae), which is endemic to shady cliff environments, is limited to small areas of Wanzhou County, Chongqing, China. In this study, we used brightfield and epifluorescence microscopy to investigate the anatomical structures and histochemical features that may allow this species to thrive in shady, dry cliff environments.