Freeze-Thaw-Induced Embolism and Ultrasonic Emissions in Angiosperms
Plant Physiology: On The Inside, Research0 Comments
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All organisms including plants share the tetrapyrrole biosynthesis pathway that is critical for the production of compounds such as heme and chlorophyll. During tetrapyrrole biosynthesis, coproporphyrinogen III oxidase (CPO) catalyzes the conversion of coproporphyrinogen III into protoporphyrinogen IX.…
Could plants be sentient?
Plant Science Research Weekly, ResearchSentience, the capacity to feel subjectively, is considered limited to organisms that have a nervous system and a centralized brain. Plants, therefore, have been excluded from this group based on: lack of a transmission mechanism like the animal nervous system; lack of a brain; simplicity; and inability…
Groundwater depletion embedded in international food trade ($)
Plant Science Research Weekly, ResearchMany food-producing regions rely on the withdrawal of water from non-renewable underground sources, a condition called groundwater depletion for irrigation (GWD). Globally, GWD increased by 22% between 2000 and 2010. When food produced with GWD is exported, the exporting country is essentially exporting…
Better understanding how plant roots breathe under water ($)
Plant Science Research Weekly, ResearchWaterlogging, a process by which water saturates soil, results in oxygen-deficient soil conditions and can result in massive crop loss. In order for plants to survive in waterlogged soil, shoots transport oxygen to roots through lysigenous aerenchyma, a specialized tissue type formed by ethylene-induced…
Monitoring the Dynamics of Freezing in Trees
Blog, Plant Physiology, Plant Physiology: On The Inside, Research, Research BlogIce formation within plants influences their physiology mechanically, hydraulically, and at a cellular level. Mechanical strain occurs as water expands during freezing and tension is induced in the remaining liquid-phase sap. Xylem cavitation is initiated upon freezing due to the low (i.e. negative)…
Drought-Responsive Novel MicroRNAs in Grapevine
Blog, Plant Physiology, Plant Physiology: On The Inside, Research, Research BlogEuropean grapevines (Vitis vinifera) are routinely grafted on interspecific hybrid rootstocks mainly to control infestation by phylloxera (Daktulosphaira vitifoliae). Research has shown, however, that these rootstocks can also affect scion growth vigor and resistance to abiotic stresses such as drought.…
Signatures of local adaptation in lowland and highland teosintes from whole genome sequencing of pooled samples ($)
Plant Science Research Weekly, ResearchTeosinte, the ancestor of maize, grows in a range of environments in México. Teosinte parviglumis (Zea mays ssp parviglumis) is more prevalent in lowland regions while teosinte mexicana (Zea mays ssp mexicana) occupies highland territory (>2000 m above sea level). Admixture between parviglumis and…
Natural haplotypes of FLM non-coding sequences fine-tune flowering time in two ambient spring temperatures in Arabidopsis
Plant Science Research Weekly, ResearchDelaying reproduction until conditions are favorable is a key to success. FLOWERING LOCUS C is a well-known regulator of flowering that delays flowering until after winter vernalization. In the spring, FLOWERING LOCUS M (FLM) fine-tunes flowering time in response to ambient temperatures between 5ºC…
Root microbiota drive direct integration of phosphate stress and immunity
Plant Science Research Weekly, ResearchMany of the genes involved in the phosphate-stress response (PSR) have been identified from plants growing on sterile medium. Castrillo et al. examined how the root microbiota affectthe phosphate stress response, and how phosphate affects the association between roots and microbes. Plants deficient…