Matches in SemOpenAlex for { <https://semopenalex.org/work/W2004341808> ?p ?o ?g. }
- W2004341808 endingPage "501" @default.
- W2004341808 startingPage "495" @default.
- W2004341808 abstract "By the time that it displays visible symptoms of stress, a plant can already be adversely affected. Current imaging techniques allow presymptomatic (Box 1) monitoring of changes in the physiological state of plants non-destructively. In this respect, thermal, reflectance and fluorescence imaging have proved their potential by detecting stress-related changes in the pattern of light emission from plant leaves. These techniques can be applied on scales ranging from microscopic observation to airborne remote sensing. Using these for crop monitoring would allow us to alleviate stress at an early stage, so avoiding irreversible damage and thus substantially reducing yield losses. Box 1. Glossary of terms Tabled 1 Biotrophic pathogen A pathogen that lives inside intact cells. Fluorescence transient The evolution of fluorescence emission upon illumination of dark-adapted leaves. Hypersensitive response (HR) Reaction of a resistant plant to an incompatible pathogen, characterized by the death of infected cells, eventually forming necrotic flecks of dead tissue. Hyperspectral imaging Simultaneous measurements performed in narrow spectral bands of the order of tens of nanometres. Multispectral imaging Simultaneous imaging in different spectral regions (e.g. far infrared, near infrared, visual). Necrotrophic pathogen A pathogen that lives on dead cells. Non-photochemical quenching (ΔFm/Fm′) The decrease in chlorophyll fluorescence caused by photoprotective thermal dissipation of absorbed light energy. This parameter is calculated as (Fm−Fm′)÷Fm′, where Fm is the fluorescence measured during the first saturating light pulse at the start of the fluorescence induction transient and Fm9 is that measured during a later flash of saturating light. Thus, ΔFm/Fm′ represents the ratio of quenched to remaining fluorescence. Non-saturating illumination (actinic light) Illumination with an intensity typically <1000 mmol m−2 s−1. Photochemical quenching (FII) The decrease in chlorophyll fluorescence caused by photochemical reactions leading to CO2 fixation. Calculated as (Fm′−Fs×R)÷Fm′, where Fm′ and Fs are the fluorescences measured under saturating and non-saturating illumination, respectively, and R is the ratio of saturating to non-saturating light. This parameter is the ratio of the difference between ‘maximum’ fluorescence at saturating light and steady-state fluorescence at non-saturating light to the ‘maximum’ fluorescence at saturating light. A high FII means efficient photosynthesis. Presymptomatic In this context, before the appearance of visual symptoms. Saturating illumination Illumination with an intensity typically >2000 mmol m−2 s−1. Variable chlorophyll fluorescence ratio (Ratio of fluorescence decay: Rfd) This is defined as (Fm−Fs)÷Fs, where Fm is the maximum fluorescence intensity attained early during the fluorescence induction transient and Fs the final steady-state value of fluorescence reached upon activation of photosynthesis. Open table in a new tab Tabled 1 Biotrophic pathogen A pathogen that lives inside intact cells. Fluorescence transient The evolution of fluorescence emission upon illumination of dark-adapted leaves. Hypersensitive response (HR) Reaction of a resistant plant to an incompatible pathogen, characterized by the death of infected cells, eventually forming necrotic flecks of dead tissue. Hyperspectral imaging Simultaneous measurements performed in narrow spectral bands of the order of tens of nanometres. Multispectral imaging Simultaneous imaging in different spectral regions (e.g. far infrared, near infrared, visual). Necrotrophic pathogen A pathogen that lives on dead cells. Non-photochemical quenching (ΔFm/Fm′) The decrease in chlorophyll fluorescence caused by photoprotective thermal dissipation of absorbed light energy. This parameter is calculated as (Fm−Fm′)÷Fm′, where Fm is the fluorescence measured during the first saturating light pulse at the start of the fluorescence induction transient and Fm9 is that measured during a later flash of saturating light. Thus, ΔFm/Fm′ represents the ratio of quenched to remaining fluorescence. Non-saturating illumination (actinic light) Illumination with an intensity typically <1000 mmol m−2 s−1. Photochemical quenching (FII) The decrease in chlorophyll fluorescence caused by photochemical reactions leading to CO2 fixation. Calculated as (Fm′−Fs×R)÷Fm′, where Fm′ and Fs are the fluorescences measured under saturating and non-saturating illumination, respectively, and R is the ratio of saturating to non-saturating light. This parameter is the ratio of the difference between ‘maximum’ fluorescence at saturating light and steady-state fluorescence at non-saturating light to the ‘maximum’ fluorescence at saturating light. A high FII means efficient photosynthesis. Presymptomatic In this context, before the appearance of visual symptoms. Saturating illumination Illumination with an intensity typically >2000 mmol m−2 s−1. Variable chlorophyll fluorescence ratio (Ratio of fluorescence decay: Rfd) This is defined as (Fm−Fs)÷Fs, where Fm is the maximum fluorescence intensity attained early during the fluorescence induction transient and Fs the final steady-state value of fluorescence reached upon activation of photosynthesis. Open table in a new tab" @default.
- W2004341808 created "2016-06-24" @default.
- W2004341808 creator A5053865766 @default.
- W2004341808 creator A5063161991 @default.
- W2004341808 date "2000-11-01" @default.
- W2004341808 modified "2023-10-14" @default.
- W2004341808 title "Imaging techniques and the early detection of plant stress" @default.
- W2004341808 cites W1493731457 @default.
- W2004341808 cites W1551980684 @default.
- W2004341808 cites W1846616506 @default.
- W2004341808 cites W1905678723 @default.
- W2004341808 cites W1971977120 @default.
- W2004341808 cites W1973233279 @default.
- W2004341808 cites W1975495159 @default.
- W2004341808 cites W1989004007 @default.
- W2004341808 cites W1996379195 @default.
- W2004341808 cites W1996650048 @default.
- W2004341808 cites W1997665892 @default.
- W2004341808 cites W2017058915 @default.
- W2004341808 cites W2026288848 @default.
- W2004341808 cites W2028824906 @default.
- W2004341808 cites W2036784995 @default.
- W2004341808 cites W2042606221 @default.
- W2004341808 cites W2048802595 @default.
- W2004341808 cites W2074943297 @default.
- W2004341808 cites W2078042747 @default.
- W2004341808 cites W2093672043 @default.
- W2004341808 cites W2093896408 @default.
- W2004341808 cites W2095213118 @default.
- W2004341808 cites W2118071600 @default.
- W2004341808 cites W2118643504 @default.
- W2004341808 cites W2137617718 @default.
- W2004341808 cites W2142386791 @default.
- W2004341808 cites W2145577769 @default.
- W2004341808 cites W2157547985 @default.
- W2004341808 cites W2160260777 @default.
- W2004341808 cites W2161220633 @default.
- W2004341808 cites W2164897500 @default.
- W2004341808 cites W2741200247 @default.
- W2004341808 cites W55109236 @default.
- W2004341808 doi "https://doi.org/10.1016/s1360-1385(00)01781-7" @default.
- W2004341808 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/11077259" @default.
- W2004341808 hasPublicationYear "2000" @default.
- W2004341808 type Work @default.
- W2004341808 sameAs 2004341808 @default.
- W2004341808 citedByCount "308" @default.
- W2004341808 countsByYear W20043418082012 @default.
- W2004341808 countsByYear W20043418082013 @default.
- W2004341808 countsByYear W20043418082014 @default.
- W2004341808 countsByYear W20043418082015 @default.
- W2004341808 countsByYear W20043418082016 @default.
- W2004341808 countsByYear W20043418082017 @default.
- W2004341808 countsByYear W20043418082018 @default.
- W2004341808 countsByYear W20043418082019 @default.
- W2004341808 countsByYear W20043418082020 @default.
- W2004341808 countsByYear W20043418082021 @default.
- W2004341808 countsByYear W20043418082022 @default.
- W2004341808 countsByYear W20043418082023 @default.
- W2004341808 crossrefType "journal-article" @default.
- W2004341808 hasAuthorship W2004341808A5053865766 @default.
- W2004341808 hasAuthorship W2004341808A5063161991 @default.
- W2004341808 hasConcept C120665830 @default.
- W2004341808 hasConcept C121332964 @default.
- W2004341808 hasConcept C121745418 @default.
- W2004341808 hasConcept C12554922 @default.
- W2004341808 hasConcept C127313418 @default.
- W2004341808 hasConcept C159078339 @default.
- W2004341808 hasConcept C173163844 @default.
- W2004341808 hasConcept C192562407 @default.
- W2004341808 hasConcept C24630173 @default.
- W2004341808 hasConcept C3232514 @default.
- W2004341808 hasConcept C57477423 @default.
- W2004341808 hasConcept C62649853 @default.
- W2004341808 hasConcept C86803240 @default.
- W2004341808 hasConcept C91881484 @default.
- W2004341808 hasConceptScore W2004341808C120665830 @default.
- W2004341808 hasConceptScore W2004341808C121332964 @default.
- W2004341808 hasConceptScore W2004341808C121745418 @default.
- W2004341808 hasConceptScore W2004341808C12554922 @default.
- W2004341808 hasConceptScore W2004341808C127313418 @default.
- W2004341808 hasConceptScore W2004341808C159078339 @default.
- W2004341808 hasConceptScore W2004341808C173163844 @default.
- W2004341808 hasConceptScore W2004341808C192562407 @default.
- W2004341808 hasConceptScore W2004341808C24630173 @default.
- W2004341808 hasConceptScore W2004341808C3232514 @default.
- W2004341808 hasConceptScore W2004341808C57477423 @default.
- W2004341808 hasConceptScore W2004341808C62649853 @default.
- W2004341808 hasConceptScore W2004341808C86803240 @default.
- W2004341808 hasConceptScore W2004341808C91881484 @default.
- W2004341808 hasIssue "11" @default.
- W2004341808 hasLocation W20043418081 @default.
- W2004341808 hasLocation W20043418082 @default.
- W2004341808 hasOpenAccess W2004341808 @default.
- W2004341808 hasPrimaryLocation W20043418081 @default.
- W2004341808 hasRelatedWork W2015264016 @default.
- W2004341808 hasRelatedWork W2016359086 @default.
- W2004341808 hasRelatedWork W2018850895 @default.
- W2004341808 hasRelatedWork W2022304901 @default.