Results 81 to 90 of about 213,651 (305)

A Virus‐Inducible E3–RLCK–MADS Module Coordinates Suppression of Plant Immunity and Fertility in Rice

open access: yesAdvanced Science, EarlyView.
ABSTRACT Viruses often hijack host developmental programs to promote infection, but the mechanistic links between reproductive regulation and antiviral immunity remain incompletely understood. Here, we identify a virus‐triggered hierarchical degradation cascade that links antiviral immunity and fertility regulation in rice. We show that the rice grassy
Yuansheng Wu   +13 more
wiley   +1 more source

Effect of elevated atmospheric CO2 level on the abiotic and biotic stress tolerance of cereals [PDF]

open access: yes, 2013
Effect of elevated CO2 level (EC) was studied on the tolerance of cereals to elevated temperature and drought and on the resistance of wheat to fungal diseases. In general, elevated growth temperature did not affect final grain size, thus having less
Balla, Krisztina   +4 more
core  

Arabidopsis defense against Botrytis cinerea : chronology and regulation deciphered by high-resolution temporal transcriptomic analysis [PDF]

open access: yes, 2012
Transcriptional reprogramming forms a major part of a plant’s response to pathogen infection. Many individual components and pathways operating during plant defense have been identified, but our knowledge of how these different components interact is ...
Atwell, Susanna   +28 more
core   +3 more sources

Seeds of change: The impact of Ethiopia's direct seed marketing approach on smallholders' seed purchases and productivity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen   +5 more
wiley   +1 more source

Habitat formation prevails over predation in influencing fouling communities

open access: yesEcology and Evolution, 2018
Coastal human‐made structures, such as marinas and harbors, are expanding worldwide. Species assemblages described from these artificial habitats are novel relative to natural reefs, particularly in terms of the abundance of nonindigenous species (NIS ...
Jean‐Charles Leclerc   +1 more
doaj   +1 more source

Light converts endosymbiotic fungus to pathogen, influencing seedling survival and host tree recruitment [PDF]

open access: yes, 2008
Endophytic fungi that asymptomatically colonize plants^1^ are diverse and abundant in tropical ecosystems^2^. These organisms can be weakly pathogenic^3^ and/or mutualistic, frequently enabling plants to adapt to extreme environments, alter competitive ...
Henrik Balslev   +5 more
core   +1 more source

Evaluating the African arid corridor hypothesis: A meta‐analysis including the phylogenetic and biogeographical history of Sesamothamnus

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise We examined the African arid corridor (AAC) disjunction pattern of vascular plants between northeastern and southwestern Africa in the context of geological and climatic events since the late Miocene. We developed a phylogenetic and biogeographical framework for the arid‐adapted genus Sesamothamnus (Pedaliaceae), a classic example of ...
John G. Zaborsky   +6 more
wiley   +1 more source

Climate and the biotic community structure plant resistance across biogeographic groups of yellow monkeyflower

open access: yesEcology and Evolution, 2022
Characterizing correlates of phytochemical resistance trait variation across a landscape can provide insight into the ecological factors that have shaped the evolution of resistance arsenals.
Michael C. Rotter   +2 more
doaj   +1 more source

Phenotypic covariance of Longevity, Immunity and Stress Resistance in the Caenorhabditis Nematodes [PDF]

open access: yes, 2010
Background: Ageing, immunity and stresstolerance are inherent characteristics of all organisms. In animals, these traits are regulated, at least in part, by forkhead transcription factors in response to upstream signals from the Insulin/Insulin–like ...
Amrit, Francis R G   +3 more
core   +3 more sources

New Zealand Calanoid Copepod Invasions: Has Artificial Lake Construction Facilitated Invasions, and are our Coastal Waters Uninvaded? [PDF]

open access: yes, 2007
Non-indigenous species have become a global issue of increasing importance in recent years, with many causing significant environmental and economic damage.
Banks, Christopher Mark
core   +1 more source

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