journal
https://read.qxmd.com/read/38510929/development-and-application-of-an-inexpensive-open-source-dendrometer-for-detecting-xylem-water-potential-and-radial-stem-growth-at-high-spatial-and-temporal-resolution
#1
JOURNAL ARTICLE
Sean M Gleason, Jared J Stewart, Brendan Allen, Stephanie K Polutchko, Jordan McMahon, Daniel Spitzer, David M Barnard
There is currently a need for inexpensive, continuous, non-destructive water potential measurements at high temporal resolution (<1 min). We describe here the development and testing of an entirely open-source dendrometer that, when combined with periodic Scholander pressure chamber measurements, provides sub-minute resolution estimates of water potential when placed on tissues exhibiting little or no secondary growth (petioles, monocotyledon stems). The dendrometer can also be used to measure radial growth of stems and branches when placed on dicotyledon and gymnosperm species...
February 2024: AoB Plants
https://read.qxmd.com/read/38497050/-schizachyrium-scoparium-c-4-better-tolerates-drought-than-andropogon-gerardii-c-4-via-constant-co-2-supply-for-photosynthesis-during-water-stress
#2
JOURNAL ARTICLE
Alina Dekirmenjian, Diego Montano, Michelle L Budny, Nathan P Lemoine
Climate change is dramatically altering global precipitation patterns across terrestrial ecosystems, making it critically important that we understand both how and why plant species vary in their drought sensitivities. Andropogon gerardii and Schizachyrium scoparium , both C4 grasses, provide a model system for understanding the physiological mechanisms that determine how species of a single functional type can differ in drought responses, an issue remains a critical gap in our ability to model and predict the impacts of drought on grassland ecosystems...
February 2024: AoB Plants
https://read.qxmd.com/read/38497049/selfing-in-epiphytic-bromeliads-compensates-for-the-limited-pollination-services-provided-by-nectarivorous-bats-in-a-neotropical-montane-forest
#3
JOURNAL ARTICLE
Stephanie Núñez-Hidalgo, Alfredo Cascante-Marín
Abstract . Plants with specialized pollination systems frequently exhibit adaptations for self-pollination, and this contradictory situation has been explained in terms of the reproductive assurance function of selfing. In the neotropics, several plant lineages rely on specialized vertebrate pollinators for sexual reproduction, including the highly diverse Bromeliaceae family, which also displays a propensity for selfing. Thus far, the scarce evidence on the role of selfing in bromeliads and in other neotropical plant groups is inconclusive...
February 2024: AoB Plants
https://read.qxmd.com/read/38497048/vertebrates-can-be-more-important-pollinators-than-invertebrates-on-islands-the-case-of-malva-lavatera-arborea-l
#4
JOURNAL ARTICLE
Cristina Robles, Víctor Romero-Egea, Anna Traveset, Rocío Ruiz de Ybáñez, Sandra Hervías-Parejo
Premise of the study: On islands, flowering plants tend to be more generalist in their pollination needs, as insects (the main pollinators of flowering plants) are underrepresented in these ecosystems compared to the mainland. In addition, some vertebrate species that are typically insectivorous or granivorous on the mainland are forced to broaden their diet and consume other resources such as nectar or pollen on the islands. The shrub Malva arborea , with its large and colourful flowers, attracts different groups of potential pollinators...
February 2024: AoB Plants
https://read.qxmd.com/read/38435969/effect-of-life-cycle-and-venation-pattern-on-the-coordination-between-stomatal-and-vein-densities-of-herbs
#5
JOURNAL ARTICLE
Guolan Liu, Peili Fu, Qinggong Mao, Jiangbao Xia, Wanli Zhao
Life cycle (annual vs perennial) and leaf venation pattern (parallel and reticular) are known to be related to water use strategies in herb species and critical adaptation to certain climatic conditions. However, the effect of these two traits and how they influence the coordination between vein density (vein length per area, VLA) and stomatal density (SD) remains unclear. In this study, we examined the leaves of 53 herb species from a subtropical botanical garden in Guangdong Province, China, including herbs with different life cycles and leaf venation patterns...
February 2024: AoB Plants
https://read.qxmd.com/read/38435968/genome-wide-investigation-of-squamosa-promoter-binding-protein-like-genes-in-liriodendron-and-functional-characterization-of-lcspl2
#6
JOURNAL ARTICLE
Yu Zhang, Qinghua Hu, Xinyu Zhai, Zhonghua Tu, Jing Wang, Minxin Wang, Huogen Li
The plant-specific SQUAMOSA promoter-binding protein-like (SPL) transcription factors play a pivotal role in various developmental processes, including leaf morphogenesis and vegetative to reproductive phase transition. Liriodendron chinense and Liriodendron tulipifera are widely used in landscaping due to their tulip-like flowers and peculiar leaves. However, the SPL gene family in Liriodendron has not been identified and systematically characterized. We systematically identified and characterized the SPL family members in Liriodendron , including phylogeny, gene structure and syntenic analyses...
February 2024: AoB Plants
https://read.qxmd.com/read/38406260/leaf-habit-and-plant-architecture-integrate-whole-plant-economics-and-contextualize-trait-climate-associations-within-ecologically-diverse-genus-rhododendron
#7
JOURNAL ARTICLE
Juliana S Medeiros, Jean H Burns, Callie Dowrey, Fiona Duong, Sarah Speroff
Plant resource strategies negotiate a trade-off between fast growth and stress resistance, characterized by specific leaf area (SLA). How SLA relates to leaf structure and function or plant climate associations remains open for debate, and leaf habit and plant architecture may alter the costs versus benefits of individual traits. We used phylogenetic canonical correspondence analysis and phylogenetic least squares to understand the relationship of anatomy and gas exchange to published data on root, wood, architectural and leaf economics traits and climate...
February 2024: AoB Plants
https://read.qxmd.com/read/38384341/mozambican-coffea-accessions-from-ibo-and-quirimba-islands-identification-and-geographical-distribution
#8
JOURNAL ARTICLE
Luciano Navarini, Davide Scaglione, Lorenzo Del Terra, Simone Scalabrin, Lopes Mavuque, Luca Turello, Rafael Nguenha, Gianluca Luongo
Mozambique does not have a tradition of farming Coffea arabica or Coffea canephora, the two species that dominate the worldwide coffee market. However, native coffee plants have been growing spontaneously and in some cases cultivated in the Ibo and Quirimba islands in the north of the country and Inhambane province in the south. Historically there has been confusion over the precise taxonomic classification of these indigenous coffee plants, with different botanists identifying the species as C. racemosa, C...
February 2024: AoB Plants
https://read.qxmd.com/read/38384340/soil-seed-bank-dynamics-of-two-invasive-alien-plants-in-nigeria-implications-for-ecosystem-restoration
#9
JOURNAL ARTICLE
Gbenga F Akomolafe, Rusly Rosazlina, Bernard Omomoh
The assessment of seed banks could provide useful hints towards ensuring restoration planning and invasive species management. In this study, the impacts of two invaders such as Hyptis suaveolens and Urena lobata on the soil seed banks were investigated. We also assessed the seed characteristics of the invaders at the invaded sites. This was achieved using 10 sites each for H. suaveolens- and U. lobata- invaded habitats and -non-invaded habitats making a total of 30 sites. We collected 200 soil samples from each habitat type...
February 2024: AoB Plants
https://read.qxmd.com/read/38352178/near-extinct-argyreia-versicolor-and-rare-argyreia-mekongensis-are-dependent-on-carpenter-bee-pollinators
#10
JOURNAL ARTICLE
Awapa Jirabanjongjit, Paweena Traiperm, Chakkrapong Rattanamanee, Alyssa B Stewart
Argyreia versicolor and Argyreia mekongensis are extremely rare plant species. The former had not been seen for nearly 100 years until two individuals were found in Thailand in 2018, and only a handful of populations are known for the latter. The aims of this study were to examine the breeding systems of A. versicolor and A. mekongensis using pollination experiments and to determine their potential pollinators via floral observations. Our controlled pollination experiments uncovered the self-incompatibility of both species...
February 2024: AoB Plants
https://read.qxmd.com/read/38352177/correction-to-degeneration-of-oil-bodies-by-rough-endoplasmic-reticulum-rer-associated-protein-during-seed-germination-in-cannabis-sativa-l
#11
(no author information available yet)
[This corrects the article DOI: 10.1093/aobpla/plad082.].
February 2024: AoB Plants
https://read.qxmd.com/read/38298756/flowering-phenology-differs-among-wet-and-dry-sub-alpine-meadows-in-southwestern-china
#12
JOURNAL ARTICLE
Shristhi Nepal, Judith Trunschke, Zong-Xin Ren, Kevin S Burgess, Hong Wang
The effect of floral traits, floral rewards and plant water availability on plant-pollinator interactions are well-documented; however, empirical evidence of their impact on flowering phenology in high-elevation meadows remains scarce. In this study, we assessed three levels of flowering phenology, i.e. population-, individual- and flower-level (floral longevity), in two nearby but contrasting (wet versus dry) sub-alpine meadows on Yulong Snow Mountain, southwestern China. We also measured a series of floral traits (pollen number, ovule number, and the ratio of pollen to ovule number per flower, i...
January 2024: AoB Plants
https://read.qxmd.com/read/38249523/the-links-between-wood-traits-and-species-demography-change-during-tree-development-in-a-lowland-tropical-rainforest
#13
JOURNAL ARTICLE
Andrés González-Melo, Juan Manuel Posada, Jacques Beauchêne, Romain Lehnebach, Sébastian Levionnois, Géraldine Derroire, Bruno Clair
One foundational assumption of trait-based ecology is that traits can predict species demography. However, the links between traits and demographic rates are, in general, not as strong as expected. These weak associations may be due to the use of traits that are distantly related to performance, and/or the lack of consideration of size-related variations in both traits and demographic rates. Here, we examined how wood traits were related to demographic rates in 19 tree species from a lowland forest in eastern Amazonia...
January 2024: AoB Plants
https://read.qxmd.com/read/38249522/the-smerf1b-like-regulates-tanshinone-biosynthesis-in-salvia-miltiorrhiza-hairy-root
#14
JOURNAL ARTICLE
Dan Li, Yu Liu, Guoliang Chen, Yan Yan, Zhenqing Bai
The ethylene response factor family genes are involved in the regulation of secondary metabolism in Salvia miltiorrhiza , but the mechanism underlying this regulation remains elusive. In the present study, based on the cDNA library of S. miltiorrhiza , an AP2/ERF gene was cloned and named SmERF1b-like . This gene exhibited a significant response to exogenous ethylene supply, such that ethylene remarkably upregulated SmERF1b-like expression levels in the leaves of S. miltiorrhiza . Subcellular localization showed that SmERF1b-like is located in the nucleus...
January 2024: AoB Plants
https://read.qxmd.com/read/38213511/molecular-and-morphological-evidence-of-hybridization-between-two-dimorphic-sympatric-species-of-fuchsia-onagraceae
#15
JOURNAL ARTICLE
Cinthya Indira Cervantes-Díaz, Violeta Patiño-Conde, Antonio González-Rodríguez, Mauricio Quesada, Eduardo Cuevas
Hybridization is commonly reported in angiosperms, generally based on morphology, and in few cases confirmed by molecular markers. Fuchsia has a long tradition of ornamental cultivars with different hybrids produced by artificial crosses, so natural hybridization between sympatric Fuchsia species could be common. Natural hybridization between F. microphylla and F. thymifolia was tested using six newly developed microsatellites for F. microphylla in addition to other molecular markers with codominant and maternal inheritance...
January 2024: AoB Plants
https://read.qxmd.com/read/38204894/study-of-the-genetic-variability-of-durum-wheat-triticum-durum-desf-in-the-face-of-combined-stress-water-and-heat
#16
JOURNAL ARTICLE
Latifa Chaouachi, Miriam Marín-Sanz, Francisco Barro, Chahine Karmous
The devastating effects and extent of abiotic stress on cereal production continue to increase globally, affecting food security in several countries, including Tunisia. Heat waves and the scarcity of rainfall strongly affect durum wheat yields. The present study aims to screen for tolerance to combined water and heat stresses in durum wheat at the juvenile stage. Three combined treatments were tested, namely: T0 (100% field capacity (FC) at 24 °C), T1 (50% FC at 30 °C), and T2 (25% FC at 35 °C)...
January 2024: AoB Plants
https://read.qxmd.com/read/38192569/-united-we-stand-divided-we-fall-intertwining-as-evidence-of-joint-actions-in-pea-plants
#17
JOURNAL ARTICLE
Bianca Bonato, Qiuran Wang, Silvia Guerra, Valentina Simonetti, Maria Bulgheroni, Silvia Quaggiotti, Benedetto Ruperti, Umberto Castiello
In life, it is common for almost every kind of organism to interact with one another. In the human realm, such interactions are at the basis of joint actions, when two or more agents syntonize their actions to achieve a common goal. Shared intentionality is the theoretical construct referring to the suite of abilities that enable such coordinated and collaborative interactions. While shared intentionality has become an important concept in research on social cognition, there is controversy surrounding its evolutionary origins...
January 2024: AoB Plants
https://read.qxmd.com/read/38162049/transcriptional-survey-of-abiotic-stress-response-in-maize-zea-mays-in-the-level-of-gene-co-expression-network-and-differential-gene-correlation-analysis
#18
JOURNAL ARTICLE
Leyla Nazari, Zahra Zinati
Abstract . Maize may be exposed to several abiotic stresses in the field. Therefore, identifying the tolerance mechanisms of natural field stress is mandatory. Gene expression data of maize upon abiotic stress were collected, and 560 differentially expressed genes (DEGs) were identified through meta-analysis. The most significant gene ontology terms in up-regulated genes were 'response to abiotic stress' and 'chitinase activity'. 'Phosphorelay signal transduction system' was the most significant enriched biological process in down-regulated DEGs...
January 2024: AoB Plants
https://read.qxmd.com/read/38130422/retrieval-of-long-dna-reads-from-herbarium-specimens
#19
REVIEW
Anne-Sophie Quatela, Patrik Cangren, Farzaneh Jafari, Thibauld Michel, Hugo J de Boer, Bengt Oxelman
High-throughput sequencing of herbarium specimens' DNA with short-read platforms has helped explore many biological questions. Here, for the first time, we investigate the potential of using herbarium specimens as a resource for long-read DNA sequencing technologies. We use target capture of 48 low-copy nuclear loci in 12 herbarium specimens of Silene as a basis for long-read sequencing using SMRT PacBio Sequel. The samples were collected between 1932 and 2019. A simple optimization of size selection protocol enabled the retrieval of both long DNA fragments (>1 kb) and long on-target reads for nine of them...
December 2023: AoB Plants
https://read.qxmd.com/read/38111607/interannual-variation-in-spring-weather-conditions-as-a-driver-of-spring-wildflower-coverage-a-15-year-perspective-from-an-old-growth-temperate-forest
#20
JOURNAL ARTICLE
Lydia V Jahn, Sarah R Carrino-Kyker, David J Burke
Spring ephemerals are wildflowers found in temperate deciduous forests that typically display aboveground shoots for a period of 2 months or less. Early spring, before the canopy leaves out, marks the beginning of the aboveground growth period where ephemerals acquire nutrients and resources via aboveground tissues. Several studies have shown that spring ephemeral reproduction is affected by spring temperature, but few have looked at how weather conditions of the current and previous seasons, including precipitation and temperature, influence aboveground growth...
December 2023: AoB Plants
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