first report of tylenchus naranensis from iran
نویسندگان
چکیده
during a survey conducted in apple orchards of boyer-ahmad and dena regions, in summer of 2013 and 2014, a species of tylenchus was recovered which was identified as t. naranensismaqbool, zarina & ghazala, 1987 based on morphological and morphometric studies. this is a new report for iran and describe here. female: ventrally curved to c-form, head continuous with body contour, cephalic framework weakly sclerotized with 4 annules, 2.3–3.4 µm high and 5.3–6.6 µm wide. stylet delicate with conus in 5.3-5.7 µm, about 46–50% of total length, with small rounded to posteriorly directed knobs. dorsal esophageal gland orifice at 0.8–1.4 µm of stylet base. body cuticle finely striated, striations 1.0–1.5 µm apart in mid-body; lateral field 4.2–5.4 µm, about 19–26% of body width; four lines in lateral field. procorpus cylindrical, as long as isthmus; median bulb oval and muscular, located at first half of the esophagus, 6.6–8.5 µm in width, with distinct cuticular thickenings; isthmus slender, nerve ring located at first half of isthmus, 64-86 µm from the anterior extremity. hemizonid 1–2 annules anterior to excretory pore. deirids near to excretory pore, 90-106 µm from the head apex.excretory pore near anterior end of basal bulb; terminal bulb elongated, 8.0–9.5 µm across and 19–25 µm long; vagina 6–12 µm and 30–40% of vulval body diameter; vulva with projected lips. ovary outstretched, anteriorly directed with post-vulval uterine sac (7.5-13 µm long, half vulval body length). tail conoid, ventrally curved with finely rounded tip; phasmid not seen. morphometric of 14 females is given as below:
منابع مشابه
اولین گزارش گونه‌ی Tylenchus naranensis از ایران
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عنوان ژورنال:
بیماریهای گیاهیجلد ۵۱، شماره ۲، صفحات ۲۸۱-۲۸۵
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