Results 71 to 80 of about 2,427,996 (299)

RNAi in the Rhizarian Phytopathogen Plasmodiophora brassicae: The Causal Agent of Clubroot Disease in Cruciferous Crops

open access: yesAdvanced Science, EarlyView.
This study uncovers an unusual RNAi pathway in the rhizarian pathogen Plasmodiophora brassicae. In the absence of Dicer, a Drosha‐like RNase III protein supports the biogenesis of predominant 21‐nt small RNAs, and two Argonaute proteins mediate small RNA‐guided silencing.
Xiong Zhang   +13 more
wiley   +1 more source

Classification of Vegetable Corns

open access: yesHortScience, 1988
Abstract In a broad sense, fresh-market vegetable corns include all maize harvested and eaten fresh while the kernels are tender and before all of the sugars are converted to starch. This definition includes “roasting ears” of selected field corns that lack sweetness-enhancing genotypes and are considered “starchy”
J. W. Courter   +3 more
openaire   +1 more source

The Landscape of Long Non‐Coding RNAs Provides Insights Into the Domestication and Improvement of Pear Fruit

open access: yesAdvanced Science, EarlyView.
This study reveals that long non‐coding RNAs represent important regulatory components underlying pear domestication and improvement. Integrative multi‐omics analyses identify selected lncRNAs associated with fruit traits, while functional validation uncovers a lignin‐related lncRNA, lncRNA‐pys, that promotes lignin accumulation.
Bobo Song   +9 more
wiley   +1 more source

Translation of the Braun-Blanquet scale to percent in TURBOVEG can bias diversity metrics [PDF]

open access: yesVegetation Classification and Survey (VCS)
Background: The majority of vegetation plots has been and still is being recorded on ordinal scales, meaning that the values have to be back-transformed to percent for many typical analyses.
Jürgen Dengler   +2 more
doaj   +3 more sources

Drought Stress Mediated Changes in Food Crops: Mechanisms and Remediation Strategies

open access: yesAdvanced Science, EarlyView.
This work presents a multi‐scale framework for flavonoid‐mediated drought tolerance in staple food crops, integrating ROS redox regulation, antioxidant defense, rhizosphere microbial interactions, and sustainable agronomic practices. This interdisciplinary model provides core insights to develop climate‐resilient cropping systems and enhance global ...
Xiaoyi Duan   +5 more
wiley   +1 more source

Broom-dominated shrublands of Sicily: revisiting the syntaxonomy of the Cytisetea scopario-striati at the south-eastern margin of their range [PDF]

open access: yesVegetation Classification and Survey (VCS)
Aims: This study focuses on the shrublands growing on siliceous and calcium-poor substrates in the hilly and mountainous regions of northern Sicily.
Riccardo Guarino   +4 more
doaj   +3 more sources

The Alaska vegetation classification.

open access: yes, 1992
Viereck, L.A.; Dyrness, C.T.; Batten, A.R.; Wenzlick, K.J. 1992. The Alaska vegetation classification. Gen. Tech. Rep. PNW-GTR-286. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 278 p. The Alaska vegetation classification presented here is a comprehensive, statewide system that has been under ...
L.A. Viereck   +3 more
openaire   +2 more sources

Rainfall Shapes the Diversity of Soil Nitrogen‐Fixing Microorganisms Worldwide

open access: yesAdvanced Science, EarlyView.
This study reveals the distinctive pattern and mechanism of rainfall driving the global biodiversity and biogeography of soil potential N‐fixing microorganisms, and constructs the theoretical framework. The results guide us on how to maintain ecosystem productivity under future climate changes (e.g., whether a specific region needs more N fertilizers ...
Bin Hua   +18 more
wiley   +1 more source

Should we estimate plant cover in percent or on ordinal scales? II – Diversity indices [PDF]

open access: yesVegetation Classification and Survey (VCS)
Question: We asked whether ordinal cover scales cause biases in biodiversity indices derived from vegetation plots and, if so, whether a different back-translation of ordinal categories could improve the situation.
Iwona Dembicz, Jürgen Dengler
doaj   +3 more sources

Low Latency Global Carbon Budget Reveals Late 2024 Carbon Losses and Contrasting Early 2025 Land Sink Recovery Signals

open access: yesAdvanced Science, EarlyView.
Low latency carbon budget estimates for July 2024–June 2025 combine atmospheric CO2 growth rates, fossil emissions, ocean uptake, DGVM land fluxes, and OCO‐2 inversions. The budget shows that late‐2024 land carbon losses dominate the annual anomaly, while early‐2025 recovery differs between bottom‐up models and top‐down inversions, especially in ...
Piyu Ke   +32 more
wiley   +1 more source

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