Leaf Explant Inoculation
Leaf Explant Inoculation - Related Videos
02:26
Establishment of Rice Plant Leaf Infection through Fungal Inoculation via Wounding
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2025
This video demonstrates the establishment of rice plant leaf infection through wounding inoculation with Magnaporthe grisea mycelium. The fungal spore-derived germ tube penetrates the epidermal layer, resulting in tissue infection and lesions on the leaves. This method aids pathotype screening and improves plant resistance understanding for molecular breeding.
07:19
Asymbiotic Germination and Leaf Explant-Based Regeneration of the Endangered Medicinal Orchid Hemipilia cucullata from Mature Seeds
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2025
Here, we present a protocol to optimize asymbiotic seed germination, seedling development, and shoot elongation in Hemipilia cucullata. The protocol also enables the induction of protocorm-like bodies from sterile leaf explants, facilitating efficient in vitro propagation for the conservation and sustainable use of this endangered medicinal orchid.
03:03
Inoculating a Bacterial Pathogen into Arabidopsis Leaves via Vacuum Infiltration
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2026
Source: Rufián, J. S., et.al. Single-Cell Analysis of the Expression of Pseudomonas syringae Genes within the Plant Tissue. J. Vis. Exp. (2022)This video demonstrates a vacuum infiltration method to introduce a bacterial pathogen into Arabidopsis plant leaves. The approach uses a prepared bacterial suspension and vacuum pulses to enable uniform entry through stomata, resulting in controlled leaf infection.
06:25
Explant Culture for Developmental Studies
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2023
Explant culture is a technique in which living cells or tissues are removed from an embryo for continued development outside of the organism. This ex vivo approach allows researchers to manipulate and observe developing tissues in ways that are not possible in vivo. Once established, explant culture is frequently used to understand the role of genes and signaling molecules in organogenesis. This video will first introduce the basic principles of explant culture and demonstrate a protocol to...
11:09
Relating Stomatal Conductance to Leaf Functional Traits
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Cited by 38 •
2015
Unraveling how physiology and morphology are linked allows a deeper understanding of mechanistic functioning of plant leaves. We present both a procedure to derive parameters of stomatal regulation from stomatal conductance measurements and correlations with traditional functional leaf traits.
FAQs
Wounding exposes susceptible plant cells and creates access points for bacterial attachment. After contact with the leaf tissue, Agrobacterium can transfer T-DNA into those cells. The treated explants are subsequently cultured so surviving tissue can recover and regenerate. This sequence connects the physical handling of the tissue with the molecular event needed to obtain transformed plant material.
Wounding helps expose plant cells to the bacterial suspension and supports attachment during inoculation. Because transfer depends on contact with susceptible cells, the condition and handling of the tissue can influence how effectively the treatment proceeds. The wound must therefore be compatible with later survival and regeneration, rather than simply maximizing tissue damage.
Inoculation time, tissue condition, culture medium, and contamination control are central variables. Excessive or poorly timed exposure may reduce explant recovery, while unsuitable tissue or medium can limit survival and regeneration. Controlling these factors improves consistency because the outcome depends not only on microbial contact, but also on the explant's ability to remain viable in culture.
A typical workflow begins with excising leaf segments, surface-sterilizing them, and wounding the tissue. The explants are then exposed to microbial cells or genetic material under controlled laboratory conditions. After inoculation, they are placed on nutrient medium, where survival and regeneration are monitored. Maintaining control throughout these stages helps limit contamination and supports consistent recovery.
Nutrient medium provides the culture environment needed for treated explants to survive and regenerate after exposure. Its suitability is important because inoculation alone does not ensure recovery of the tissue. In practice, researchers evaluate the treated leaf segments on this medium to determine whether they remain viable and develop a regeneration response under controlled conditions.
The technique supports several lines of investigation, including plant–microbe interactions, production of genetically transformed plants, and evaluation of tissue regeneration responses. It is especially useful when researchers need a practical route from treated, excised leaf tissue to subsequent culture-based assessment. The resulting observations can link inoculation conditions with transformation or recovery outcomes.