Hi,

Is it possible that they were mechanically damaged or touching the lights (heat damaged). I also notice that the first flowers have failed to form proper siliques. This happens both with too much and too little light. Botrytis can cause this wilting but then the rosette won't be healthy. Check if you have additional shorter stems that do not reach the light and if they look healthy.

thanks Svetlana Boycheva Woltering for your answer. The plants are far from the light, so it´s not burning. Light conditions are stable, and we´ve never had this problem. I´ll look into Botrytis (the rosettes are senescing, so, its difficult to be sure they are healthy. Regards. dana

Looks to me light damage from excessive light or heat. Did the growth room or chamber have an issue with the heat/cooling unit? Doesn't take much to damage a young plant.

I know you said the soil & water are fine, but do you water your own plants or have other folks? I've had a well-intentioned coworker kill all of my plants by forgetting to water them & then quickly adding water a few days later.

Any chance the plants dried out over the weekend?

You can also see this sort of wilting if you put too much surfactant in the floral dip when transforming (disrupts the cuticle & makes plants very susceptible to heat & drought). But pretty sure you would have mentioned if the plants were Agro dipped.

Hi Dana Martinez,

I’ve experienced something like this too. Even if the rosettes look healthy, a deficiency in nutrients like calcium or boron can specifically affect flowering structures.

Thanks.

Arabidopsis thaliana, a model organism in plant biology, can be infected by a variety of pathogens. When infected, it exhibits visible symptoms depending on the type of pathogen involved: Pathogen Type Examples Symptoms Bacteria Pseudomonas syringae Water-soaked lesions, chlorosis (yellowing), wilting Fungi Botrytis cinerea, Alternaria brassicicola Gray mold, necrotic spots, leaf blight Viruses Turnip mosaic virus (TuMV), CMV Leaf curling, mottling, stunting Nematodes Root-knot nematodes Root galls, stunted growth Oomycetes Hyaloperonospora arabidopsidis Downy mildew (white, fluffy growth on underside of leaves)

Dana Martinez I would agree to both Sreya Das and Hussain Shah : deficiency in nutrients like calcium or boron in rapidly grown plant tissues can stimulate development of endophytes as weak pathogens (Pseudomonas marginalis, enterobacteria, Bacillus sp., fungi, etc.)