Abstract
Drought stress impacts the quality and yield of Pisum sativum. Here, we show how short periods of limited water availability during the vegetative stage of pea alters phloem sap content and how these changes are connected to strategies used by plants to cope with water deficit. We have investigated the metabolic content of phloem sap exudates and explored how this reflects P. sativum physiological and developmental responses to drought. Our data show that drought is accompanied by phloem-mediated redirection of the components that are necessary for cellular respiration and the proper maintenance of carbon/nitrogen balance during stress. The metabolic content of phloem sap reveals a shift from anabolic to catabolic processes as well as the developmental plasticity of P. sativum plants subjected to drought. Our study underlines the importance of phloem-mediated transport for plant adaptation to unfavourable environmental conditions. We also show that phloem exudate analysis can be used as a useful proxy to study stress responses in plants. We propose that the decrease in oleic acid content within phloem sap could be considered as a potential marker of early signalling events mediating drought response.
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Claims 5
Claim · model-written summary
Drought was accompanied by phloem-mediated redirection of components needed for cellular respiration and carbon–nitrogen balance.
- Taxon
- Pisum sativum L.
Lathyrus oleraceust0 - Treatment
- droughte0
- Outcome
- phloem-mediated redirection of the componentse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought is accompanied by phloem-mediated redirection of the components that are necessary for cellular respiration and the proper maintenance of carbon/nitrogen balance during stress”
t0“pea plants (Pisum sativum L.)”
Claim · model-written summary
Pea phloem metabolic content indicated a shift from anabolic to catabolic processes under drought.
- Taxon
- Pisum sativum L.Lathyrus oleraceust0
- Organ / stage
- phloem sape0
- Outcome
- shift from anabolic to catabolic processese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The metabolic content of phloem sap reveals a shift from anabolic to catabolic processes”
t0“pea plants (Pisum sativum L.)”
Claim · model-written summary
Phloem metabolic content indicated developmental plasticity in drought-exposed pea plants.
- Taxon
- P. sativumLathyrus oleraceuse0
- Treatment
- droughte0
- Outcome
- developmental plasticitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the developmental plasticity of P. sativum plants subjected to drought”
Claim · model-written summary
The authors report that phloem exudate analysis can serve as a proxy for plant stress responses.
- Taxon
- plantsViridiplantaee0
- Outcome
- useful proxy to study stress responsese0
Not reportedComparatorValue
Verbatim
e0“phloem exudate analysis can be used as a useful proxy to study stress responses in plants”
Claim · model-written summary
The authors propose decreased oleic acid content in phloem sap as a potential marker of early drought signaling.
- Taxon
- Pisum sativum L.Lathyrus oleraceust0
- Organ / stage
- phloem sape0
- Outcome
- potential marker of early signalling events mediating drought responsee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the decrease in oleic acid content within phloem sap could be considered as a potential marker of early signalling events mediating drought response”
t0“pea plants (Pisum sativum L.)”