@1974safaa:

Safaa Alsaray
Safaa Alsaray
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Thursday 23 January 2025 06:47:01 GMT
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A tumor occurs when an abnormal amount of cellular growth happens. Animals like us can develop benign tumors or malignant tumors that can turn into cancer. Plants can develop tumors too, however these tumors do not turn into cancer. Plant tumors are called “galls”. Galls can happen in different parts of the plant and are caused by various types of organisms (viruses, nematodes, bacteria, mites, insects, or fungi). In other words, the type of gall that a plant forms depends on the organism causing it and the part of the plant that is affected.    . The leaf galls (tumors) in the video are produced by the sumac leaf gall aphid (Melaphis rhois). This aphid species (aphids are a type of insect) specifically infests sumac tree leaves like the one shown in the video. It is amazing how this aphid species has evolved to have such a specific relationship with sumac trees. . The life cycle of these aphids is fascinating. Female aphids lay eggs on sumac leaves. When nymphs emerge, they secrete chemicals that cause the leaves to produce galls (tumors). These galls surround the aphids, providing them with protection (the galls become the aphids’ houses!). Additionally, the aphids inside the galls feed on the leaf sap (the aphids get housing and food from the tree!). After completing their development inside the gall, the aphids come out of the galls as winged adults. Once out of the gall, they typically go to live in moss near the sumac tree. In the moss, the aphids reproduce and eventually, the females search for sumac leaves to lay their eggs. . If you think about it, the galls (tumors) appear to help sumac trees contain the damage caused by aphids. It’s interesting to hypothesize that the tree might have evolved a response that utilizes the tumors (galls) created by aphids to mitigate the effects of the aphid infestations. Just amazing!” . For this video, I used a Leica ZOOM 200 stereoscope and an Olympus BX41 microscope at up to 200X magnification. #biology #microscopy #microscope #ecology #sumac #aphids #galls #sumacleafgallaphid #melaphisrhois #drbioforever
A tumor occurs when an abnormal amount of cellular growth happens. Animals like us can develop benign tumors or malignant tumors that can turn into cancer. Plants can develop tumors too, however these tumors do not turn into cancer. Plant tumors are called “galls”. Galls can happen in different parts of the plant and are caused by various types of organisms (viruses, nematodes, bacteria, mites, insects, or fungi). In other words, the type of gall that a plant forms depends on the organism causing it and the part of the plant that is affected. . The leaf galls (tumors) in the video are produced by the sumac leaf gall aphid (Melaphis rhois). This aphid species (aphids are a type of insect) specifically infests sumac tree leaves like the one shown in the video. It is amazing how this aphid species has evolved to have such a specific relationship with sumac trees. . The life cycle of these aphids is fascinating. Female aphids lay eggs on sumac leaves. When nymphs emerge, they secrete chemicals that cause the leaves to produce galls (tumors). These galls surround the aphids, providing them with protection (the galls become the aphids’ houses!). Additionally, the aphids inside the galls feed on the leaf sap (the aphids get housing and food from the tree!). After completing their development inside the gall, the aphids come out of the galls as winged adults. Once out of the gall, they typically go to live in moss near the sumac tree. In the moss, the aphids reproduce and eventually, the females search for sumac leaves to lay their eggs. . If you think about it, the galls (tumors) appear to help sumac trees contain the damage caused by aphids. It’s interesting to hypothesize that the tree might have evolved a response that utilizes the tumors (galls) created by aphids to mitigate the effects of the aphid infestations. Just amazing!” . For this video, I used a Leica ZOOM 200 stereoscope and an Olympus BX41 microscope at up to 200X magnification. #biology #microscopy #microscope #ecology #sumac #aphids #galls #sumacleafgallaphid #melaphisrhois #drbioforever

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